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GPAI upstream: what your foundation-model vendor owes you and what you must verify yourself

The short answer

You cannot govern the vendor's model, only the seam between you

You did not choose the training data and cannot audit it. What you can govern is the boundary: what the vendor legally owes you, what they delivered, and what no vendor document will ever cover, which is yours to verify.

What you will be able to do

  • Distinguish the three roles the EU AI Act (Regulation (EU) 2024/1689) assigns along a model's life, the GPAI model provider, the downstream provider, and the deployer, and place your own organization in the right one for a specific system.
  • List what a GPAI model provider legally owes you under Article 53 of the EU AI Act, and check each item against what your vendor actually delivered.
  • Separate the obligations the vendor's documentation discharges from the obligations that remain yours no matter what the vendor sends, so you never mistake a model card for your own conformity work.
  • Identify the upstream risks a vendor is not required to eliminate and often cannot, training-data provenance, copyright exposure, and privacy exposure, and decide what you must verify or contract for yourself.
  • Analyze a vendor's capability and safety claims for reproducibility, refusing to inherit a number you cannot decompose into what was measured, on what data, judged by whom. (see Topic 4.2)
  • Build a vendor documentation review that sorts owed-and-received from must-verify-yourself, and wire it into your conformity file and your evidence annex.
  • Defend the boundary you drew to a regulator or a board that asks "why did you trust this vendor, and what did you not take on faith?"

The lesson

Modern foundation models require massive compute infrastructure to train. But to a downstream software engineer, they compress down into a single, simple API endpoint. You send an input, you receive a response.

In December 2023, the New York Times sued OpenAI and Microsoft, alleging millions of its articles were copied without permission to build the language models powering ChatGPT and Copilot. The Times litigation bypasses the chatbot interface to target the corporate entities responsible for assembling the training corpus and deploying the underlying architecture. Two years later, the developers of the Claude model settled a similar lawsuit, Bartz v. Anthropic, agreeing to pay a minimum of $1.5 billion over the ingestion of pirated books from shadow libraries.

If a court anywhere orders one of these models to be changed, retrained, or withdrawn, the application you built on top of it instantly inherits that disruption. The feature you shipped does not get a grace period. IT and legal teams routinely assume that because they simply buy access to a general-purpose model, they are shielded from the risks hidden inside its training data.

Since the training data is hidden behind proprietary walls, governing the seam, the documented boundary where the vendor's obligations end and your own testing begins, becomes the primary point of local control. Your organization permanently carries the upstream provenance risk of your vendors. Telling a regulator you did not train the model describes your dependency, it does not serve as a legal defense.

To map out that boundary, you first have to determine where your organization sits in the AI value chain for a specific system. The EU AI Act assigns compliance duties based on your specific role per system, not your corporate identity. At the top is the general-purpose AI model provider.

This is the entity that actually develops the foundation model and places it on the market. In the middle is the downstream provider. If you build a system around a foundation model and place it on the market under your own brand name, you occupy this role.

At the bottom is the deployer. This is an organization using an AI system internally under its own authority, without rebranding or marketing it to others. Article 25 of the AI Act contains a critical trigger.

If a deployer substantially fine-tunes a model or rebrands it as their own, their legal classification instantly shifts upward, they inherit heavier, provider-level duties. Assuming your company is merely a deployer without checking these triggers is the fastest way to leave mandatory, high-risk compliance duties completely unassigned. Once you know your role, you govern the boundary using a two-column vendor documentation review ledger.

The left column captures exactly what the vendor legally owes you under Article 53. The first mandatory deliverable is Annex 12 downstream documentation. This outlines the model's general capabilities, known limitations, and intended uses.

Next, the vendor must supply a copyright policy, demonstrating how they respect text and data mining opt-outs, alongside a broad training content summary, following an official template. The final item is Annex 11 technical documentation. You do not receive this file.

The vendor maintains this highly detailed architectural record exclusively for regulators. For foundation models trained on massive compute power, the AI Act designates a systemic risk tier. Providers of these frontier models owe even stricter incident reporting and adversarial testing results directly to the European Commission.

Knowing this exact list means you can demand specific, legally mandated compliance deliverables, rather than accepting whatever glossy marketing summary and hoping it covers your obligations. When an organization treats a vendor's glossy model card as a substitute for its own local conformity file, it leaves a significant gap in its compliance record. That gap is the seam.

The vendor's documents describe the model in general. You are legally answerable for your system in particular. A vendor's model card cannot evaluate whether the system is accurate enough for your specific financial forecast or whether it requires human oversight in your medical triage workflow.

The vendor has never seen your task. Similarly, a vendor's copyright policy outlines a compliance process. It does not guarantee the training corpus is legally clean.

Courts evaluate the lawfulness of training data differently, based on jurisdiction and exactly how the data was acquired. Upstream compliance documentation establishes a baseline of facts about the model. It never provides a legal clearance for your specific downstream application.

To handle the risks the vendor cannot clear for you, we turn to the right side of the ledger. You must route all unauditable upstream risks into one of two local mitigation paths, test or contract. Upstream provenance risk manifests in three specific ways, legal disruption of the service, the regurgitation of memorized copyright data, and poisoned training corpus content.

If an exposure can be checked locally at your desk, it routes to the test bucket. You verify task accuracy and probe for regurgitation by running your own representative data through the model. Before adopting a vendor's published performance metric into your own test data, you must decompose it.

You have to ask exactly what was measured, on what data, and by whom. If you cannot answer those three questions, it is marketing, not evidence. If a risk depends on unsettled law or the vendor's unobservable conduct, it routes to the contract bucket.

You negotiate legal indemnities for copyright claims, exact terms for data acquisition, and strict notice periods for model deprecation. Any upstream risk that you fail to assign to a strict test or a contractual indemnity is an unmanaged liability sitting quietly inside your product. Provenance risk flows down from the vendor, but data also flows up to them.

This reverse flow is an active governance surface. In 2023, employees at Samsung pasted proprietary source code into a public AI chatbot to debug it. The company had to severely restrict the tool after realizing internal corporate secrets had left their network.

Deployers must explicitly configure enterprise tiers to block vendors from logging, retaining, or training on the sensitive downstream inputs sent through the API. Furthermore, vendors silently update and alter foundation models without warning. This version drift can alter output behavior instantly, invalidating the safety testing you performed on the previous iteration.

Your connection to an external foundation model is a living dependency. You need continuous contractual guardrails to prevent your private data from being absorbed upstream and to stop your stable product from being altered underneath you. When an integrated foundation model hallucinates or provides bad advice, downstream deployers often attempt to blame the vendor in court.

In the 2024 case, Moffett v. Air Canada, a tribunal rejected the argument that a chatbot was a separate responsible entity. They held the airline directly liable for the chatbot's misrepresentation of bereavement fares. The end user interacts with the product under your brand name.

You alone answer for the output, regardless of who engineered the underlying model. The Vendor Documentation Review ledger forces abstract, unauditable legal exposure into a managed record of tested and contracted facts before a crisis occurs. You cannot outsource your legal and operational accountability.

You can only map the seam, test your specific system, contract for the risks you cannot see, and face your customers from a governed position.

The ideas, one by one

Your obligations flow from your role, so place it first

GPAI model provider, downstream provider, or deployer are roles you occupy per system, not fixed identities. The value-chain rules (Article 25) can turn a deployer into a provider through rebranding or substantial modification, so determine the role before anything else.

Article 53 owes you a finite, specific list

Downstream documentation on capabilities and limits, a copyright policy, a public training-content summary, and regulator-facing technical documentation. Knowing the exact list is what lets you check delivery instead of accepting whatever the vendor chose to send.

A model card is not your conformity work

The vendor documented a general model; you are answerable for a specific system it has never seen. Your intended-purpose testing, risk classification, oversight, and monitoring stay yours no matter how thorough the vendor's paperwork.

The training summary and copyright policy are a floor, not a clearance

The summary is broad by design and the policy is a commitment to a process. Neither certifies the data was lawful, which is exactly the question the New York Times case is fighting over with no resolution yet.

Provenance risk reaches your product three ways

Legal disruption that travels if the model is changed or withdrawn, regurgitation of protected content under your name, and outright unlawful content in the corpus. You inherit all three from a seat where you can see none of them.

Refuse to inherit a number you cannot decompose

A vendor's accuracy or safety claim becomes your liability the moment you rely on it. Decompose it into what was measured, on what data, judged by whom, or record it as the vendor's unverified assertion, never as your own fact. (see Topic 4.2)

Every open risk goes to test or contract, and none floats

Test what is about your system and checkable at your desk; contract for what turns on the vendor's conduct or unsettled law. An indemnity allocates who pays; it does not erase a risk you could have tested. An untagged risk is unmanaged.

The seam runs both ways

What your system sends upstream can be as damaging as what the model's training sends down. Know what leaves your walls, whether the vendor may train on it, and whether the data class is lawful to send at all. (see Topic 6.6)

The model you validated is not necessarily the model you run

Vendors change and deprecate models with little notice and behavior shifts between versions. Pin the version, monitor for change, contract for notice, and rerun critical evals on every version you are moved to. (see Topic 10.3)

The customer holds you, not the vendor

An airline answered for its chatbot's words because the customer dealt with the airline. Upstream duties on the vendor do not stand between you and the person your system harms, which is why the seam must be governed before anything goes wrong.

How the data was acquired can matter as much as whether training is fair use

A court found training on lawfully bought books transformative but using pirated copies not, ending in a record USD 1.5 billion settlement. So "how did you acquire your training data" is a sharper question to put to a vendor than "is your training lawful," and it is one the copyright policy does not answer.

You may not be buying from the model maker

Resellers, marketplaces, and aggregators wrap other companies' models, so your Article 53 documentation must trace to the real provider, and your version and provenance rows must point at the true source, not a wrapper that can change what it wraps without notice. (see Topic 3.3)

Read each Article 53 document for what it is

The Annex XII pack is a capabilities sheet, the training summary is a broad inventory, the copyright policy is a commitment to a process, and the regulator file is one you usually never see. None of them is your accuracy, your clearance, or your conformity work; each is a useful input from the vendor's side of the seam.

The vendor documentation review is a living artifact, not a form

Re-walk it on version change, on term change, and on material legal developments. It feeds your conformity file and your evidence annex, and it turns "we use a vendor's model" into a documented, defensible boundary. (see Topic 5.6) (see Topic 10.6)

You read it. Now prove it.

Explain this lesson in your own words, the way you would to a colleague, without looking back at it. It is graded against the lesson itself, by the same grader our learners face. One free try a day, no account needed.

The conversation

The same lesson, talked through at length by two hosts: the full transcript of the audio deep dive.

Listen to it as episode 38 of the podcast.

Read the full conversation

So today we are doing a deep dive into something that is frankly keeping a lot of tech executives awake at night right now Yeah, I mean it absolutely should be keeping them awake right because we have a massive stack of material in front of us We're looking at the finalized text of the EU AI Act We've got these really sweeping recent judgments from the UK High Court and this billion-dollar summary judgment out of California Plus we're pulling heavily from that really rigorous Operational framework from module 5 of the AI governance program exactly and the whole mission of our deep dive today is to take all this incredibly dense legal and technical documentation and You know figure out exactly how you as a developer or a company actually govern your relationship with the vendors who supply your AI models Because honestly, this is arguably the single most critical operational challenge in tech today I mean, we are officially out of the cute experimentation phase, right? Holy Sandboxes closed exactly. We were squarely in an era of strict unforgiving liability If you're building with AI today You are operating inside a highly regulated supply chain and to really feel the pressure of that supply chain I mean you just have to look at the trenches of the ongoing legal war right now Specifically the New York Times versus open AI and Microsoft lawsuit. Oh, yeah, that is just a brutal Grinding process right now.

It really is. I mean we're recording this in late 2026 and this lawsuit which was filed all the way back in December 2023 is still just sitting in this grueling wildly expensive Discovery phase in the Southern District of New York right in SDNY and discovery at that scale is just I mean It's a nightmare a complete nightmare In fact just a couple days ago on July 9th The Times filed this massive sanctions motion over exactly how open AI searched its own internal systems for copied material Which tells you everything you need to know about how impossibly complex these systems are. There's no final judgment yet There are no damages awarded It's literally just this highly public war over what exact data went into training a model, right? But here is where the reality sets in for you listening this you didn't build that massive model No, you're sitting one layer downstream from all of that exactly You are a developer or maybe a product manager who just bought access to a vendor's model through an API and you wired it directly into your own product you wired it into your internal workflow or you know a customer facing chat bot that processes live data every single day and if the federal judge in New York finally drops the hammer and orders that a foundation model has to be Fundamentally altered or even retrained from scratch because of copyright issues your downstream product does not get some polite grace period It just breaks it breaks immediately.

So before we dive into exactly how you protect yourself from that breakage We need to get our vocabulary straight. The law is very specific here Yeah terminology is everything because the law doesn't just regulate AI as some vague sci-fi concept It regulates specific actors doing specific things. So throughout this deep dive We're gonna use the term general-purpose AI model or GPI model How does the EU AI Act actually define that? So a GPI model is legally defined as a model that is trained on a broad quantity of data at scale it displays significant generality and It can competently perform a really wide range of distinct tasks regardless of how it's placed on the market Exactly the route to market doesn't matter for the definition Okay, and just to bridge the gap for the software engineers listening when we say GP AI model We are basically just talking about what the tech industry calls a foundation model, right? Yeah, that's the common industry shorthand a large general-purpose model trained on broad data Adapted to many downstream uses like the major large language models or image generators you use every day, right? So let's unpack the core vulnerability here because a lot of development teams live under what I call the illusion of outsourced risk Oh, this is such a dangerous mindset It really is a company signs an enterprise contract with a massive AI vendor, right? They get an API key they get this glossy Beautifully designed PDF called a model card and they treat those documents like a titanium shield, right? They assume that if the vendor doesn't explicitly mention a risk, you know Like copyright provenance or toxic data, then the model is just perfectly safe to deploy But that's a huge structural flaw in their thinking isn't it It's a massive flaw because simply put you cannot govern a vendors training data You literally can't do it because we don't have access to it.

Exactly. You don't have server access to their GPU clusters You didn't choose the petabytes of data. They scraped from the internet and you absolutely cannot audit their raw data lakes So trying to govern their internal engineering is just a total waste of time on a percent what you can govern and frankly what you? Are legally required to govern is the boundary between you and that vendor and in the AI governance framework They call this boundary the seam right? Yes the seam I really want to visualize this seam because it's not just a metaphor.

It is a rigid legal boundary It absolutely is so imagine you run a high-end restaurant. You don't raise your own cattle, right? You buy all your beef from a massive agricultural supplier. Okay, I like this analogy, right? So the supplier hands you all these certificates saying their slaughterhouses meet federal standards But then there's a huge outbreak I'm a massive recall on the beef because of severe contamination at the source farm, right? If you serve that contaminated beef to your diners pointing your finger the supplier and saying hey, we didn't raise the cattle That is not gonna stop your customers from getting violently ill No, and it definitely won't stop the Health Department from padlocking your front door Exactly the risk originated upstream But the liability actually materialized on your plate and the mechanics of that transfer are exactly the same in software The seam is that exact perimeter separating what the vendor legally owes you in writing? Versus what no vendor document is ever going to cover things You just have to verify yourself precisely because here is the foundational reason the seam exists The vendor documents the foundation model in general But you are responsible for the AI system in particular in particular, right which brings up this excuse I hear constantly from development teams.

Let me guess. We just call an API Yes, they look at the New York Times lawsuit and they go look we don't train models We just ping an API so these massive data lawsuits don't touch us We aren't the ones sitting in the defendant's chair, which is just a staggering misunderstanding of supply chain risk, right? I mean isn't being out of the courtroom enough to insulate you not even slightly look not being the defendant Just means you aren't paying the hourly rates for the trial lawyers in New York fair point It does absolutely nothing to remove the inherited operational risk If the foundation model your whole app relies on gets slammed with a court injunction You inherit that disruption the very second the judge signs the order your API calls just start timing out or worse the vendor panics and pushes a newly retrained compliant version of the model overnight and Suddenly all your carefully crafted pumps don't work anymore. Your system's accuracy just falls off a cliff Wow Okay, so knowing this massive cloud of risk is hanging over you upstream Doesn't really help until you figure out exactly where you stand in a blast radius, right? Exactly and the EU AI act treats you very differently depending on what you actually do with the model You can't demand what you're owed from a vendor until you know What legal shoes you're standing in right and your obligations flow entirely from your role and a really crucial detail that trips up a lot Of compliance officers is that this role is assigned per system not as some fixed company identity We really so a company isn't just one thing Nope, a single large enterprise could easily hold three different roles simultaneously across three different software projects Okay, let's clearly define these three roles because the source material makes it clear that beginners blur them constantly The first role is the GP AI model provider, right? The GP AI model provider is the organization that develops the general purpose model and actually places it on the market So this is the open AI the anthropic the Google exactly the massive capital intensive labs They secure billions in compute.

They scrape the web. They run the algorithms They make the model if you are listening to this you are almost certainly not occupying this role, right? You're the one buying from them. So stepping one layer down the supply chain What's the next role the second role is the downstream provider the act also calls this the provider of an AI system? This is the organization that builds an application Usually wiring up someone else's GP AI model at the core and then places that completed system on the market under its own name Okay So if my dev team takes a vendors language model Builds a nice custom UI add some legal domain prompting slaps our company logo on it and sells it as an AI Contract reviewer you are a downstream provider because we put our name on it Yes, because you place the finished system on the market you absorb the primary responsibility for ensuring it complies with the law before a user Ever touches it.

Okay, and the third rule is the deployer which has the lightest regulatory touch, right? Yes, a deployer is an organization that uses an AI system under its own authority in the course of its business But crucially without placing it on the market or substantially modifying it. Give me a real-world example of a deployer Sure, think of a regional hospital network They buy a fully baked off-the-shelf AI diagnostic tool from a medical software company They install it they use it to help their radiologists read x-rays, but they aren't selling it to other hospital exactly They didn't build it. They aren't selling it.

They're just using it that makes them a deployer now They still have legal duties human oversight logging informing patients, but they avoid the heavy manufacturing obligations of a provider But this boundary between deployer and downstream provider It seems incredibly fragile the source tech spends a lot of time Warning about this thing called the article 25 value chain trigger Oh, it is the most dangerous trapdoor in the whole EU AI act explain that because it sounds like a company could start out Intending to just be a deployer but then accidentally trigger article 25 and suddenly inherit a massive legal burden that happens all the time the law says that if you take an existing AI system and you put your own trademark on it or if you make a Substantial modification to how it operates or its intended purpose boom you legally become the provider of that system I can literally hear product managers across the world sweating right now. Yeah, because everyone is doing fine-tuning these days Yeah, so if a team says hey, we aren't rebuilding the model We're just doing some light fine-tuning on our own proprietary data to get better answers. We're still just a deployer, right? Can they use that defense that is a massive gamble because right now there is no bright Mathematical line in the case law that defines exactly what a substantial modification is.

It's a spectrum. Where's the line? Well, if you're just tweaking the temperature parameter on an API call to make the chatbot less creative You're likely still a deployer Okay But if you take an open source model and run a heavy fine-tuning process using thousands of specialized HR resumes So the model can now screen candidates, which it wasn't originally built to do exactly you have fundamentally altered its purpose You triggered article 25. You are now a downstream provider.

So what's the actual protocol when an engineering team is sitting in a meeting? Arguing over whether they're fine-tuning was substantial or not defensive pessimism. I love that phrase defensive pessimism It's the only way to survive the safe default if it's at all Ambiguous is to assume you carry the heavier role the downstream provider role until your external legal counsel Explicitly writes a memo telling you otherwise because if you guess wrong if you leave downstream provider duties unassigned Just because you crossed your fingers and hoped you were a deployer. That is a fatal compliance error You are pushing a high-risk system into production without doing the legal safety checks regulators will absolutely destroy you for that Okay, so let's assume a team does the hard work.

They map their systems They know their roles once you have that legal standing you finally have the leverage to turn around Face upstream and demand what the vendor actually owes you. Yes, and we aren't talking about polite customer service requests here We are talking about statutory obligations, right? And this is governed by article 53 of the EU AI Act, which officially became applicable on August 2 2025 correct GP AI model providers owe a finite highly specific list of four items It is not just whatever marketing brochure. They feel like emailing you.

Let's pull these four items apart The first one is the technical documentation of the model, which is under an exec AI But if I'm building an app this NX XI file isn't actually for me, is it? No, it's not annex XSI is strictly for regulators specifically the European AI office It requires the vendor to keep exhaustive highly confidential records of their engineering process their exact training methods Compute resources algorithmic architecture, right because that's full of trade secrets Open AI is not going to just hand over the exact architectural weights of GPT 5 to my startup Just because I paid 20 bucks a month for the API precisely. The IP risk is astronomical So as a downstream developer, you will almost never see the actual annex XI file But your due diligence must include getting formal written confirmation from the vendor that this documentation actually exists just another operating lawfully Exactly. Okay moving to the second obligation This one is explicitly designed for the people listening to this deep dive the downstream documentation, which is annex to all right Annex 12 is the information package engineered for you Its whole purpose is to give you enough info about the models capabilities and limitations so you can fulfill your own compliance duties But again, look at the scene here.

The law is balancing your need for transparency against the vendors IP The source material emphasizes that what you get in annex 12 is a described model That's a critical distinction. You get a comprehensive description use cases integration guidelines acceptable use policies general performance metric You don't get the raw training data You absolutely do not get the training data which transitions perfectly into the third obligation under article 53 And this is easily the most explosive legal minefield in the entire industry right now the copyright compliance policy Yes, article 53 paragraph 1 C It mandates that the GPA provider must have a formal policy to comply with EU copyright law And the absolute center of gravity here is that they must respect opt-outs for text and data mining which the industry calls TDM Let's pause and define Text and data mining because it sounds like a very clinical term for essentially vacuuming up the entire public Internet I mean functionally that is what it is TDM is the automated analytical process of scraping and processing Massive bodies of text images and code to extract patterns It's how they build the colossal training corpora these models need and the EU This is governed by article 4 paragraph 3 of the copyright directive of 2019 790, right exactly so how do these opt-outs actually work mechanically if I'm an independent artist or a news publisher and I don't want my life's work sucked into a foundation model How do I actually stop it under the copyright directive right shoulders have the legal authority to register explicit reservations of their rights? They say do not use my data for TDM Mechanically, this is mostly done through machine readable format like a robots dot txt file on a website, right? Or embedding specific metadata tags into digital images that signal to an AI crawler that the file is off limits Okay, but I need to underline a massive flashing warning sign here for the listeners The requirement is that the vendor must have a policy to respect opt-outs Having a policy document sitting in a corporate filing cabinet somewhere is not a legal certification that their actual training data is pristine and perfectly cleared The difference between a policy and a guarantee is the space where all your liability lives say that again That's huge the difference between a policy and a guarantee is where your liability lives Think of a chemical plant having a safety manual proves you have a process It does not prove an explosion didn't happen on the factory floor yesterday Wow, the vendor is promising the regulator. They try to respect opt-outs.

They are not indemnifying you against a copyright lawsuit Okay, that brings us to the fourth and final obligation under article 53 the public summary of training content Yes mandated by article 53 paragraph 1d The provider has to publish a detailed summary of the exact content they use to train the model and they have to follow a specific Template from the AI office. But again, look at the vocabulary a summary. It's a high-level overview.

I might say We use 30% English language websites 20% public domain books and 10% licensed journals, right? It is absolutely not a line-by-line URL by URL manifest of every single web page their crawlers ever hit it couldn't be a full manifest Anyway, the scale is incomprehensible. We're talking Trillions of tokens, but because it's only a broad summary It doesn't give you the deployer anywhere near enough granular visibility to verify if Specific copyrighted works were in there now a quick piece of operational intelligence for anyone doing vendor due diligence There's this general-purpose AI code of practice that was finalized on July 10th, 2025. Oh, this is a great tool, right? So if you're in a procurement meeting with an AI vendor asking them exactly which chapters of that code of practice Is an incredibly sharp revealing question because it forces them to move past the marketing speak and point to actual regulatory commitment Okay, I want to throw a massive wrench into this whole thing.

Well for it. There is this pervasive Stubborn rumor in the developer community right now regarding open source model. I know exactly what you're gonna say You've seen the forums, right? The prevailing wisdom is that if you use an open source model You know one where the weights and architecture are freely downloadable on hugging face That you are completely exempt from all this suffocating EU AI act red tape The community essentially thinks open source means open season.

It is one of the most dangerous widespread Misinterpretations of the law today. It's completely wrong mostly wrong, right? Look open source models specifically those released under genuinely free licenses where the parameters are public They do receive exemptions, but those exemptions are extremely narrow. What are they actually exempt from? They're only exempt from the first two obligations.

We just discussed They don't have to generate the annex xxi technical documentation for regulators And they do not have to provide the annex 12th downstream documentation to you Okay, so an open source lab doesn't have to spend hundreds of hours writing a corporate manual for developers Mmm, that makes sense. You don't want to crush open source innovation with admin overhead exactly But and this is the critical caveat they are not exempt from the copyright compliance policy They still have to respect TDM opt-outs and they are not exempt from publishing the public summary of training content Wait, what if that open source model is an absolute behemoth like as powerful as GPP for a clod 3? Ah, if an open source model is so massive that it crosses the threshold into the systemic risk tier Then every single exemption vanishes poof gone The open source provider has to comply with the entirety of article 53 just like a closed proprietary vendor And here is the most vital takeaway for you sitting downstream your own downstream obligations the testing the logging the risk management They do not get one ounce lighter just because you decide to download open weights instead of calling a paid API the fact that it's open source Changes the paperwork you receive from upstream It does absolutely nothing to dilute the fact that governing the deployed system is entirely your legal problem That is the perfect distillation of the seam you are responsible for the system regardless of the licensing model of the underlying components Okay, so we've established you have to be ruthless about checking what you actually receive against this four-part article 53 list But let's imagine a scenario where the vendor is flawless rare But okay, you buy access to one of the most powerful cutting-edge foundation models on earth The vendor hands you every document perfectly formatted does buying a heavily scrutinized super-powerful model somehow save you Does leaning on a massive top-tier vendor take the regulatory burden off your shoulders? It absolutely does not in fact it introduces a whole new layer of complexity and this brings us to the systemic risk tier Which is defined under article 51 of the Act How does the law define systemic risk because to me that sounds like a phrase a politician uses when a major bank is about to collapse it doesn't sound like a software definition the AI Act uses a very specific mathematical threshold a General purpose AI model is presumed to have systemic risk if it was trained using cumulative compute exceeding 10 to the 25th floating-point operations or FLOPs, let's translate FLOPs for the audience real quick a floating-point operation is basically a single fundamental Mathematical calculation right like adding or multiplying two decimal numbers It's the basic unit of computational effort for a processor, correct? And 10 to the 25th is a number so staggeringly large. It's almost impossible to comprehend It's a 1 followed by 25 zeros How much hardware is that practically to hit that level of compute during a single training run? You need tens of thousands of state-of-the-art GPUs running continuously for months consuming literally the electrical output of a small city We are talking about a very small Ultra-elite group of the absolute largest frontier models in the world The act also notes that the European Commission can independently designate a model as systemic risk Based on its market reach right even if it doesn't hit that exact math threshold Yes And if a vendor provides a model in this tier the law Imposes a heavy set of extra duties upon them under article 55 extra work like what under article 55 the provider has to perform Rigorous adversarial testing which we usually call red teaming Okay, they have to hire internal and external security experts to deliberately attack and try to break their own model Find vulnerabilities biases safety bypasses They also have to assess and mitigate systemic risks at the EU level Ensure incredibly high cybersecurity and report serious incidents directly to the AI office So from a downstream developers perspective, that sounds amazing.

If I license a systemic risk model I know the vendors just spend millions of dollars heavily red teaming it they attacked it from every angle So I can just staple their adversarial testing report in my compliance file and go to the pub Right doing that is falling directly into the model card trap the model card. Yes This extra upstream testing is incredibly useful intelligence for you. It tells you the base model is fundamentally robust But it is never under any circumstances a substitute for your own testing Let me use an analogy to explain the mechanics of why that is because this trips people up all the time relying solely on the vendors adversarial testing is Exactly like buying a heavy-duty commercial truck and just looking at its general crash test rating from the manufacturer, right? The manufacturer crashed that truck in a sterile climate controlled laboratory They drove it in a perfectly straight line and a flat concrete wall They prove the airbags deploy and the chassis holds up sir But they do not know that you just bought that truck Loaded with 10,000 pounds of shifting steel pipes and you plan to drive it through a treacherous icy mountain pass at midnight Exactly.

The manufacturer tested the vehicle in general. They absolutely did not test your specific highly dangerous delivery route that captures the dynamic perfectly a Model card even a highly detailed article 55 compliant model card for a systemic risk model It documents the model in a vacuum. It doesn't know your specific commercial context It doesn't know your intended purpose and it definitely doesn't know the specific demographic vulnerabilities of your end-users, right? The systemic risk provider proved the mathematical engine works safely in a general context just to satisfy the regulator But the intended purpose testing the risk classification of your app the design of your human oversight All of that is solely your responsibility The vendor proved the model is safe to exist You must prove the model is safe to use in your specific application and this profound Misunderstanding this false sense of security that because a big tech company tested the model You don't have to it leads directly to the single biggest vulnerability at the scene It is the issue that is keeping general counsel's across the world awake at night We need to talk about the origins of the training data This is where downstream teams crash headfirst into the floor versus clearance trap unpack that for us Well as we established under article 53 the vendor provides a public training summary and a copyright policy you have to ruthlessly train your teams to treat those documents as a floor a Basic baseline of operational info not as a legal clearance Let's define the two vital concepts that dictate this whole risk The first one is provenance provenance is simply the origin the lineage and the lawfulness of the data The model was trained on it's the pedigree of the data.

Did they buy it? Did they scrape it? Did they steal it and the second concept is regurgitation regurgitation happens when a foundation model if fed a very specific prompt reproduces exact Verbatim chunks of its original training data. It's not generating new text it's reciting memorized data exactly it could spit out a multi-page passage from a copyrighted sci-fi novel or a block of licensed proprietary computer code or even someone's private medical record that accidentally got swept up in the training corpus and Regurgitation is the absolute nightmare scenario because it takes an upstream provenance issue data The vendor scraped three years ago and it turns it into a downstream Emission problem right under your company's name right on your user interface and the source text points out that this provenance risk Reaches your product in three distinct highly damaging ways Yes the first is legal disruption that travels meaning what if an upstream foundation model is suddenly found by a court to be trained on Stolen data and the judge orders the model pulled offline your downstream product breaks instantly The risk travels right through the API the second way it hits you is the regurgitation We just defined which brings direct strict liability right to your doorstep If your chatbot spits out a New York Times article verbatim to a user the Times might sue the model maker But they can absolutely sue you for distributing it Oh without a doubt and the third way provenance risk manifests is what we call the quiet poison in the corpus quiet poison That is a terrifying phrase explain the mechanics of that Well provenance isn't solely about copyright and fair use The sheer volume of data scraped from the open internet virtually guarantees that the training corpus contains material that is outright illegal Highly toxic or just deeply biased give me a historical example of this actually happening because this isn't theoretical not at all in 2023 there was this massive widely used public image training data set called la ion It was instrumental in training several major open source image generation models, right? Researchers eventually discovered and publicized that the data set contains suspected links to illegal child sexual abuse material Yeah, the data set had to be immediately withdrawn So as a downstream deployer you could be inadvertently relying on a model built on incredibly toxic Radioactive foundations and you would have absolutely no idea because the article 53 public summary of training content just says we used internet Images exactly. It doesn't tell you the images were illegal You're operating completely blind and to make matters worse the legal landscape governing copyright provenance is Incredibly fragmented and volatile.

It's a complete patchwork of jurisdictional contradictions completely Let's look at the actual case law to prove this because the UK High Court handed down a massive decision on November 4th 2025 in the case of Getty Images versus stability AI Getty sued stability claiming they unlawfully used Getty's massive copyrighted photo library to train their image generation model and The outcome of that case absolutely shocked many people in the creative industries The UK High Court actually rejected the central copyright infringement claim. Wait, they rejected it They did the court accepted the technical argument that the fully trained foundation model did not contain actual stored copies of Getty's photographs The model only contained mathematical representations of the patterns within those photographs So the model maker won the big copyright argument, but Getty didn't walk away completely empty-handed did they? No, they didn't the court did find stability AI liable for historic trademark infringement, right? Because early versions of the model were actually regurgitating distorted versions of the famous Getty watermark Directly onto the generated images which confused consumers exactly But the core lesson here is that in the UK at least in that specific Jurisdiction on that specific day the act of training on copyrighted images was not deemed a copyright violation in itself Which perfectly illustrates the cross-border jurisdictional differences you have to navigate what is considered lawful protected innovation in London Might be considered massive systemic theft in New York Yes and to prove that point We just have to look at the United States and a case that I think provides the most vital lesson of this entire deep-dive Barts versus anthropic. This is a massive case huge This is a class-action lawsuit filed by authors who alleged that anthropic trained its clawed language models on Thousands of pirated books and we have a fascinating truly surgical summary judgment from June 2025 by Judge William Alsop in the Northern District of California Right and Judge Alsop drew a razor-sharp legal and economic line here He ruled that if an AI company lawfully purchased books and used them to train a model that action was Quintessentially transformative and protected under the US doctrine of fair use so buying the data is legally protected innovation But what was the other side of that line? The other side of the line was the acquisition method The judge ruled that downloading and training on pirated copies of books from illegal shadow Libraries was absolutely not fair use because it's stolen property Exactly the economic theory being that utilizing stolen property to build a commercial product Inherently undercuts the market for the original work and the financial outcome of that distinction was absolutely staggering in September 2025 Anthropic agreed to a settlement paying a minimum of 1.5 billion dollars That broke down to roughly three thousand dollars per pirated work and Crucially, they were forced to destroy the pirated copies within their training data sets That case is a watershed moment for AI governance But let me play devil's advocate for a minute if a major wildly well-funded AI lab just settled for a billion and a half Dollars over pirated books doesn't that just signal to the market that the whole concept of fair use is dead Shouldn't downstream deployers just assume all upstream training data is completely toxic.

No, that is the wrong lesson to draw entirely What the Bart's case proves mechanically is that how the data was acquired? Matters just as much if not more than the abstract legal concept of fair use how you acquired it Exactly the exact same text used for the exact same algorithmic training purpose was protected fair use if the vendor bought it But it was billion-dollar infringement if they pirated it and here is the terrifying part for you sitting downstream building an app You cannot see the acquisition method. No, the vendors summary of training content will tell you they trained on English language literature You will not tell you if they paid for the literature or downloaded it from a Russian shadow library Which means a deployer cannot simply ask a vendor is your training data lawful? The vendor will always say yes every time of course, they will you have to ask explicitly exactly how did you acquire the rights to this specific corpus of data because as the Bart's case proves a Vendor's internal definition of lawful might not survive contact with a federal judge Wow And because you cannot blindly trust the vendors data and because you can't rely on the vague assurances in their copyright policy You have to ruthlessly interrogate every single claim They make about their model not just regarding safety and copyright, but regarding its actual operational capabilities Yes, and this brings us to the operational discipline of decomposing claims to defend your product decomposing claims Look vendors are fundamentally sales organizations. They love to sell with definitive glossy numbers They will hand you a model card that boldly claims our model achieved state-of-the-art 98% accuracy on financial reasoning or we have driven our hallucination rate down to below point zero one percent and for a stressed Compliance officer or a busy product manager It is so incredibly tempting to just copy those numbers paste them directly into your own internal compliance Documentation and competently present them to your board of directors Oh people do it every day and doing that is a profound governance failure.

You are inheriting a liability. You do not understand So what's the rule you must institute a strict internal rule? You refuse to inherit a number that you cannot decompose How do you actually decompose a claim mechanically any? Capability score any safety benchmark any hallucination rate presented by a vendor must be broken down by asking three unforgiving questions First what exactly was measured second on what specific data set wasn't measured and third who judged the outcome? Okay, let me use an analogy here because taking a vendor's hallucination rate at face value is exactly like signing a commercial loan application Using an income figure that a mortgage broker just scribbled in for you without you ever seeing the underlying pay stubs, right? If the bank comes knocking a year later because the numbers were entirely fabricated You can't just point at the broker and say well, they wrote it down on a glossy piece of paper You signed the document you deployed the system You're the one on the hook for the fraud the data bears that out entirely if a vendor says they have 99% accuracy But when you ask on what data they reveal they only tested it on basic middle school math problems Well that 99% figure is completely useless to your enterprise financial software Obviously if you cannot answer what was measured on what data and by whom you cannot label it as a fact So what you call it? You must strictly label it in your conformity files as an unverified assertion by the vendor Unverified assertion. Yes And once you identify an unverified assertion or any open risk like copyright provenance You have to route it to a solution in the governance framework.

You route every single open risk to one of two paths There is no middle ground right the source material says every open risk must go to test or contract Nothing's allowed to float unassigned exactly Let's break down those two buckets starting with test What actually goes into the test bucket the test bucket is reserved for claims and risks that you can physically Mechanically verify at your own desk You mean example you test for accuracy by running the model against your own proprietary golden data sets that represent your specific business domain You test for regurgitation by hitting the model with adversarial prompts designed to mirror what your actual users will type You test to see if the vendors documented limitations in annex 12 actually match how the model behaves one wired into your specific infrastructure Okay And if a risk cannot be tested at a desk Like the risk of a massive copyright lawsuit over the vendors training data you read it to the contract bucket, correct? You contract for risks that turn entirely on vendor conduct or on unsettled volatile areas of the law You can't rate a Python script to test away the risk of a copyright lawsuit So you route that risk to the procurement team you demand a robust contractual indemnity for third-party intellectual property claims You ask for explicit contractual warranties detailing exactly how the training data was acquired You demand contractual notice periods forcing them to give you 90 days warning before they deprecate a model version, but wait We need to clear up a massive misconception about contracts here because I've had executives tell me straight to my face We don't need to worry about copyright provenance or toxic data because we negotiated a bulletproof indemnity clause in our enterprise agreement Doesn't an indemnity just make the risk disappear? Like if the vendor promises to pay my legal fees the problem is solved, right? That is such a dangerous oversimplification of contract law and Indemnity does not stop the rain. It merely dictates who pays for the umbrella when the storm inevitably hits It allocates the financial liability after the damage is already done Exactly. It absolutely does not replace the regulatory need to test the leaks You could have fixed yourself consider the mechanics of reputational damage if your AI system regurgitates sensitive personal data and Catastrophically harms a user the vendors indemnity might cover the cost of the ensuing civil lawsuit Yeah, but that indemnity will not repair your company's shattered reputation in the market No, it won't and it certainly won't stop the European privacy regulator from knocking on your door and finding you for failing to implement Basic technical safeguards you cannot contract your way out of regulatory negligence You need both rigorous testing and robust contracts which leads us to an area where deployers often exhibit a complete blind spot Because we have spent this entire deep dive talking about the rain coming down from the vendor though Legal and technical risks flowing downstream into your product, right? But the scene we've been discussing is not a one-way street Is it there is a massive flow of data and risk moving in the exact opposite direction? Yes, we are talking about the reverse flow the reverse flow mechanically define that for us The reverse flow is the data your system sends up to the vendors model via the API payload on every single interaction Let's make this highly tangible Every time your customer types a query into your customer service chat bot or every time your employee highlights a sensitive internal strategy document and ask the AI to summarize it that text is packaged into an API call and Sent upstream to the vendors servers and the critical question is what happens to that data? Once it reaches the vendor, right? The answer depends entirely on the specific terms of service you agreed to and the specific technical configuration of your API account The vendor might log those prompts for quality assurance They might retain that data on their servers for 30 days or maybe six months Right and most dangerously if you are using a standard commercial tier They might actively use your proprietary inputs to train their future foundation models The ultimate cautionary tale for reverse flow is the famous 2023 Samsung case.

Oh, it is the textbook example of reverse flow failure. What exactly happened? Engineers at Samsung were struggling with some complex highly confidential proprietary source code and looking for a shortcut they pasted the secret code directly into a public consumer tier AI chat bot and Asked it to debug the software and the tragedy here is that nobody hacked Samsung no cyber criminal breached their firewalls Their own highly cleared employees operating in the course of a normal workday Voluntarily shipped the company's deepest intellectual property upstream to a third-party vendors servers Because they didn't understand how the model ingested data They forced Samsung to implement sweeping draconian bans on the internal use of generative AI. It was a disaster So hearing that a lot of IT directors will say look that's an easy fix We just tell our cloud administrators to flip the configuration toggle in the API settings from consumer to enterprise Which opts us out of data training problem solved Is it really just an IT toggle treating reverse flow as a simple IT toggle ignores the massive legal reality beneath it? If the data you are sending upstream in those API payloads includes any personal data from your European users names addresses behavioral data You have instantly created a strict highly regulated legal relationship under the general data protection regulation the GDPR How does the GDPR actually govern that API call under article 28 of the GDPR? You are legally required to execute a data processing agreement or DPA with the vendor a DPA Yes, this is not a technical configuration It is a binding legal contract that dictates exactly who answers first if that personal data is mishandled or breached So it defines the roles exactly the DPA establishes whether the vendor is acting merely as a processor of your data Meaning they follow only your strict instructions or if they are acting as a joint controller meaning they have a say in how the data Is used governing the reverse flow is a massive complex Compliance surface.

Okay. Let's take a breath and survey the landscape here. You've mapped your roles.

You've audited the article 53 documents You've contracted for indemnities regarding copyright provenance. You've physically tested your prompts to prevent regurgitation You've secured your reverse flow with a bulletproof DPA. Your system is locked down and safe Yeah, you can finally relax really you can relax only until the vendor decides to change the laws of physics overnight This brings us to the ultimate operational headache Model version change the fundamental truth of API driven AI is That the foundation model you rigorously validated on a Tuesday is not necessarily the exact same model You are running in production on a Friday.

Wait, they just change it. Oh all the time vendors are constantly silently updating weights retraining algorithms to patch vulnerabilities and Deprecating older models to save on compute costs so you can spend a month Building a flawless conformity file documenting all your rigorous testing based on version 1.0 of a model but that entire file becomes completely useless fiction if the vendor silently updates your API endpoint and moves you to version 1.1 behind the scenes precisely to use an analogy Validating a model once and assuming it stays static is like trusting a map of a coastline that was drawn five years ago Fully knowing that the tide and the storms are constantly washing away sand and reshaping the shore, right? The map might have been perfectly accurate the day the cartographer drew it But if you try to sail a commercial ship by it today You are going to crash into a hidden reef and the most important part of that analogy is liability If your ship crashes because your map is out of date and your passengers get hurt. They are gonna sue the ship's captain You they are not gonna sue the cartographer who drew the map five years ago.

We have actual Finalized case law proving this exact dynamic. Oh, we do Look at the Moffitt versus Air Canada case, which was decided by the British Columbia Civil Resolution Tribunal on February 14th 2024 walk us through the mechanics of that case. So a customer.

Mr. Moffitt went to Air Canada's website Seeking a discount for a bereavement flight after a death in his family He interacted with the airline's automated AI chat bot the chat bot hallucinated it confidently gave Mr. Moffitt completely fabricated information regarding the airline's refund policies Relying on the chat bots advice. He purchased full price tickets expecting a retroactive refund that did not actually exist And when he realized he was out hundreds of dollars, he sued it was the airline's defense Air Canada attempted a truly audacious legal defense They tried to argue that the chat bot was essentially a separate legal entity Responsible for its own words and that the customer should have double-checked the chat boss answers against the airline's static policy pages How did the tribunal react to the idea that an AI is responsible for its own hallucinations? They rejected the argument completely. They ruled the while a chat bot is an interactive component It is legally no different from any other piece of information on a company's website They held the airline fully financially liable for the negligent misrepresentation The core inescapable principle here is that the party facing the customer carries the exposure The customer holds you responsible for the failure not the unseen AI vendor whose language model generated the text That is the ultimate reality of the scene The vendors article 53 duties run upstream to the European regulators and they run horizontally to you as the buyer But those vendor duties do not stand between you and the customer your system harms Which means you have to treat model version as a first-class operational fact in your code base you cannot just point your system to a Generic API endpoint like latest model.

You have to pin it. You must explicitly pin the specific Alphanumeric version of the model you are using in your code You must implement automated monitoring to detect if the models behavior drifts you must contractually demand 90-day notice periods before a vendor deprecates a model and Critically you have to rerun your most vital test suites on every single new version You are moved to before you allow that new version to face your customers Governing an AI system is not a one-time sorting task. It is a continuous operational discipline bringing all this theory together Yeah, I mean defining your roles demanding the for article 53 documents investigating copyright provenance Decomposing unverified claims securing your reverse flow and pinning your model versions.

It can feel overwhelming It's a lot. It requires a single unified artifact You need something tangible something you can build immediately to actually govern this seam in the real world Which brings us to the most valuable move you can make when you walk into the office on Monday morning Everything we've discussed converges on one single executable document. It is called the vendor Documentation review walk us through exactly how to build this blueprint You start by identifying your highest stakes highest risk AI system currently in development or production You open a document and create a simple two column record.

What goes in the left column? The left column is your owed and received column This is where you map exactly what the vendor legally owes you under article 53 against what you physically have in your possession Okay, so checking the boxes exactly. Do you have written confirmation of the annex effect technical documentation? Do you have the annex except downstream documentation describing the models limits? Do you have their copyright policy respecting TDM opt-outs? Do you have the public summary of training content on the AI office template? You ruthlessly check off what the law says you're owed versus what the vendor actually delivered It's a basic inventory check, but the real governance magic happens in the right column Exactly. The right column is your must verify yourself column This is where you list every single risk that the vendor documents explicitly do not cover like provenance You list copyright provenance you list regurgitation of sensitive data You list accuracy on your highly specific domain pass you list reverse flow data leaks You list silent version changes and for every single item in this right column You must explicitly route it to either test or contract no floating risks You write down exactly the data set you will use to test it or the exact Indemnity warranty you are demanding from the procurement team Nothing is allowed to float unassigned and for the final polish on this document You write a candid one paragraph boundary statement.

You place this at the very top of the review It must state clearly what your legal role is what risks the vendor covers what risks they do not cover and it must name a specific Residual risk that your company is accepting. It should be honest Credible and leave zero filler if you hand that document to a board of directors Or if you hand it to an investigating regulator, they will instantly see the mechanics of your oversight They will see that you are actively governing the system. Not just closing your eyes and hoping for the best It transforms the weak excuse of we just use a vendors model from a helpless shrug into a defensible legally governed position Before we wrap up I want to leave you in the room with one final Provocative thought to mull over as you audit your own AI supply chain this week.

This is a good one Think very carefully about the middlemen Are you actually buying your foundation model direct from the GPI model maker? Or are you buying through a massive cloud marketplace a third-party API broker or an enterprise software platform? That simply wraps someone else's foundation model in a nice interface because the law demands Documentation from the creator a reseller cannot hand you article 53 annex 12 documents that they never actually authored exactly, if your legal compliance depends entirely on tracing documentation back to the original source a Reseller is very often a dead end that breaks your compliance chain So next time you log into your developer dashboard and look at your API keys ask yourself Do you actually know who is at the other end of the line? It is a question every deployer needs to answer before the regulator asks it for them We'll catch you next time on the deep dive. Stay curious and govern your seams

Real cases

These are real, documented cases from several jurisdictions, each showing the upstream relationship done well or badly. Each is owned for deep treatment by the topic noted and used here only for its upstream-governance angle.

Example 1: The New York Times v. OpenAI and Microsoft (United States, 2023 to present). The Times alleges the companies trained their models on millions of its articles without permission and that the models can regurgitate its content. Source: The New York Times, 27 December 2023. As of July 2026 the case is in discovery in the Southern District of New York, with the news plaintiffs seeking sanctions over OpenAI's handling of searches for the copied material. Source: reporting via The Washington Post, 9 July 2026. No final ruling has issued. The upstream lesson: a deployer built on a model at the center of an unresolved, high-stakes training-data dispute carries a provenance risk it did not create and cannot audit, which is precisely why the risk must be named, contracted around where possible, and monitored, not assumed away. This is the anchor case for the topic.

Example 2: Getty Images v. Stability AI (United Kingdom, decided November 2025). Getty sued the maker of an image-generation model over training on its photographs. On 4 November 2025 the High Court of England and Wales rejected the central copyright claim, accepting the view that the trained model contained no stored copies of the works, and found only limited, historic trademark infringement tied to old model versions that reproduced watermarks. Source: Getty Images v. Stability AI, High Court of England and Wales, November 2025; Bird & Bird and Latham & Watkins analyses, 2025. The upstream lesson: training-data disputes do not resolve the same way in every forum, and a deployer who assumes either "training is clearly infringing" or "training is clearly fine" is guessing at a question courts are answering differently by jurisdiction and by claim type. The governance response is to treat the legal question as genuinely open and allocate the risk deliberately.

Example 3: Thomson Reuters v. Ross Intelligence (United States, 2025). A federal court rejected a fair-use defense for training a legal-research AI on Westlaw headnotes. (see Topic 10.5) owns this case for the ownership-of-output angle; here it is the counterweight to Getty, showing that in a different forum, on different facts, a training-data use was found not to be fair use. The upstream lesson for a deployer: the outcome turns on specific facts and specific jurisdictions, so "another model won its case" is not clearance for the model you actually use.

Example 4: The withdrawn image-training dataset (international, 2023). Researchers found thousands of suspected illegal-content links inside a very large public dataset used to train popular image models, and the dataset was taken down. (see Topic 2.1) owns this case. The upstream lesson here: provenance risk is not only copyright. A model can be trained on material that is unlawful for reasons that have nothing to do with rightsholders, and a deployer inherits that too, which is why the training-summary and copyright-policy documents you receive are a floor, not a clearance.

Example 5: Samsung's confidential-code leak into a public chatbot (South Korea, 2023). Employees pasted proprietary source code into a public AI chatbot to debug it, and the company subsequently restricted use of such tools after concluding internal material had left the organization. Source: reporting via Bloomberg and TechCrunch, 2023. The upstream lesson: the seam runs in both directions. What your workflow sends up to a vendor can be as damaging as what the vendor's training data sends down, and governing only the download while ignoring the upload covers half the boundary.

Example 6: The airline chatbot held to its word (Canada, 2024). A tribunal found an airline liable for wrong information its website chatbot gave a grieving customer, rejecting the claim that the chatbot was a separate responsible entity. Source: Moffatt v. Air Canada, British Columbia Civil Resolution Tribunal, 14 February 2024. The upstream lesson: the customer holds the deployer responsible for the output, no matter whose model produced it. Upstream duties on the vendor do not stand between you and the person your system harms.

Example 7: The EU General-Purpose AI Code of Practice (European Union, 2025). On 10 July 2025 the European Commission published a voluntary Code of Practice with three chapters, Transparency and Copyright for all GPAI providers, and Safety and Security for systemic-risk providers only, as a way to demonstrate Article 53 and 55 compliance until harmonised standards exist. Source: European Commission, digital-strategy.ec.europa.eu, 10 July 2025. The upstream lesson: whether your vendor has signed the Code, and which chapters, is a concrete piece of due-diligence intelligence about how the vendor is meeting its obligations, and a reasonable question to put to them in writing.

Example 8: A regulator forcing a training pause (Brazil, 2024). A data-protection authority ordered a large platform to stop training AI on its users' personal data, with a daily penalty for non-compliance. (see Topic 6.6) owns this case for the cross-border decision. The upstream lesson: the lawfulness of feeding personal data into a model is contested and enforced differently across jurisdictions, so a deployer sending personal data upstream, or relying on a model trained on it, faces a moving legal floor and cannot treat the vendor's home-country practice as a global permission.

Example 9: Bartz v. Anthropic, the pirated-books settlement (United States, 2024 to 2026). Three authors sued the maker of the Claude models, alleging it trained on their books copied from pirate "shadow libraries." In June 2025 Judge William Alsup of the United States District Court for the Northern District of California drew a sharp line: training on lawfully acquired books was, in his words, "quintessentially transformative" and protected as fair use, but downloading and keeping pirated copies of those books was not. Source: Bartz v. Anthropic, N.D. Cal., summary judgment June 2025; Kluwer Copyright Blog and Authors Guild analyses, 2025. In September 2025 the company agreed to pay a minimum of USD 1.5 billion, on the order of USD 3,000 per work, and to destroy the pirated copies; a final fairness hearing was held in May 2026, the court granted final approval in July 2026, and initial payments were estimated to begin around August 2026. Source: Authors Guild, "What Authors Need to Know About the Anthropic Settlement," 2025; Publishing Perspectives and court reporting, 2026.

The upstream lesson, and the reason this belongs beside the New York Times and Getty cases, is that the provenance risk did not turn on the abstract question "is training fair use." It turned on how the vendor obtained the data: the same court that blessed training on bought books condemned training on pirated ones. A deployer cannot see acquisition method from its seat, which is exactly why "how did you acquire your training data" is a sharper written question to put to a vendor than "is your training lawful," and why the copyright-policy document you receive, a commitment to a process, does not answer it. It also shows the scale of an upstream provenance failure: a record settlement whose disruption, had this been a smaller model many products stood on, would have rippled into every system built above it.

Example 10: The whistleblower who questioned his own employer's data (United States, 2024). A former researcher at a major AI lab publicly argued the company's training practices infringed copyright and offered documents. (see Topic 11.5) owns this case, and it must be handled with care. The upstream lesson referenced here only: even insiders dispute the lawfulness of the training data behind widely deployed models, which tells a deployer that the provenance question is genuinely unsettled at the source, and confident public assurances from a vendor are not the same as a resolved legal position.

Where people go wrong

Most of these are errors of role and of assumption, not of intelligence. A capable team makes them because the upstream relationship feels like someone else's problem until it lands on the deployer's desk. Read each as a way your own next vendor relationship could quietly leave a risk unassigned.

  • "We do not train models, so the training-data lawsuits do not touch us." They touch you through your dependency. If the model at the center of a dispute is changed, restricted, or withdrawn, your product built on it inherits the disruption, and if it regurgitates protected content, the emission happens in your product under your name. Not training the model removes you from the defendant's chair, not from the risk.
  • "The vendor's model card and our contract cover our obligations." They cover the vendor's account of the model, not your responsibility for your system. The vendor documented a general model; you are answerable for a specific use it has never seen. Your intended-purpose testing, risk classification, oversight design, and monitoring stay yours no matter how thick the vendor's documentation is.
  • "We are a deployer, so our duties are light." Only if you are actually a deployer for this system. If you put your name on the product or substantially modify the model, the Act's value-chain rules (Article 25) can make you a provider with full obligations. Assuming the lighter role without checking is how deployers leave provider-level duties unassigned.
  • "The training summary tells us the data was clean." The Article 53 training summary is a broad, templated overview, explicitly not a full manifest, and it certifies nothing about lawfulness. The copyright policy it comes with is a commitment to a process, not a clearance of the corpus. Reading either as proof the data is safe overreads a document the law designed to be summary-level.
  • "The vendor passed adversarial safety testing, so our system is safe." The systemic-risk provider tested the model in general against certain attacks. It did not test your system, your prompts, your users, or your trust boundary. A model can be broadly robust and still fail your specific high-stakes case, and the provider's evaluation runs to the regulator, not into your conformity file as your evidence. (see Topic 4.4)
  • "We can cite the vendor's accuracy and safety numbers as our own." A number you cannot decompose into what was measured, on what data, judged by whom, is a liability the moment you rely on it. Vendor claims are the vendor's assertions until you verify them, ideally by rerunning the relevant check on your representative data. Inheriting a number undecomposed imports an exposure you will have to defend and cannot. (see Topic 4.2)
  • "Provenance risk is a copyright problem." Copyright is one strand. Training data can carry privacy exposure, personal data used without a lawful basis, and outright unlawful content, as the withdrawn image dataset showed. (see Topic 2.1) Scoping the upstream risk to copyright alone misses the privacy and illegal-content strands a deployer also inherits.
  • "Whatever we send the model stays private." What the vendor does with your inputs is set by their terms and your configuration, not your intentions. A default consumer tier may log, retain, or train on what you send, and a real company restricted a public chatbot after employees leaked confidential code into it. The upload half of the seam is a governance surface, not an afterthought.
  • "The model we validated is the model we run." Vendors update, retrain, and deprecate models, sometimes with little notice, and behavior can shift sharply between versions. (see Topic 10.3) Conformity evidence gathered on version A describes a system you no longer run once the vendor moves you to version B. Version is a first-class fact to pin, monitor, and contract notice for.
  • "An indemnity in the contract means the risk is gone." A contract does not make a risk disappear; it decides who pays when it lands. An indemnity is valuable and it is not a substitute for testing the risks you can close yourself, nor a guarantee the counterparty can actually make you whole. Contract and test are two different paths, and each open risk needs one of them, explicitly.
  • "The open-source model has no vendor obligations, so we are on our own with no recourse but also no upstream duties." Open-source GPAI models are exempt from some Article 53 documentation duties, but not from the copyright policy or training summary, and not at all if they carry systemic risk. And your own downstream obligations do not lighten because the model is open. Open weights change the documentation you receive; they do not change that the deployed system's governance is yours.
  • "Because another model won its copyright case, ours is cleared." Training-data disputes resolve differently by jurisdiction and by claim type; one forum accepted that a model holds no stored copies while another rejected a fair-use defense on different facts. A favorable ruling for a different model in a different court is not clearance for the model you actually deploy. Treat the legal question as genuinely open and allocate the risk deliberately.
  • "Sorting the seam once is enough." The boundary moves when the model beneath you moves, when the vendor changes terms, and when the law develops. A vendor documentation review is a living artifact re-walked on version change and on material legal developments, not a one-time form. A boundary drawn once and never revisited describes a system and a legal landscape that have both moved on.
  • "Our vendor is the model maker, so our documentation comes from them." Often you are not calling the model maker at all but a reseller, cloud marketplace, or aggregator that wraps someone else's model. That middle party cannot hand you Annex XII documentation it never wrote. Your Article 53 documents must trace to the actual model provider, and a reseller who cannot point you to them is a documentation gap, not a discharge. Ask who is really behind the interface. (see Topic 3.3)
  • "Fair use was found for training, so the provenance question is settled." One court found training on lawfully acquired books transformative while holding that using pirated copies was not, and other forums have ruled differently again on different facts. The lawfulness can turn on how the data was obtained, not just on the abstract fair-use question, and a deployer cannot see acquisition method from its seat. Treat the question as genuinely open and ask the vendor how, not just whether, it acquired its training data.
  • "Light fine-tuning keeps us a deployer." Maybe, maybe not. The more you change the model's intended purpose or behavior, the further the value-chain rules (Article 25) push you toward provider duties, and there is no bright line for "substantial." When the case is genuinely ambiguous, carry the heavier role until counsel confirms the lighter one, because the dangerous error is to assume down and leave provider-level duties unassigned.
  • "The Annex XII pack tells us our accuracy is fine." The downstream documentation reads like a capabilities sheet for a general model: what it is good at, its known limits, its intended uses. It cannot contain your accuracy on your task, because it has never seen your task. Reading a general capabilities description as evidence about your specific decision is the exact seam error, moving a duty from your side to the vendor's by wishful reading.

Questions people ask

What is general-purpose AI model (GPAI model)?
A model trained on broad data that can perform many tasks and be integrated into many different downstream systems, for example a large language model. The EU AI Act gives GPAI model providers a specific set of obligations under Articles 51 to 56. More on General-purpose AI model (GPAI model)
What is foundation model?
A common industry term for a large, general-purpose model trained on broad data and adapted to many uses. Overlaps in practice with the EU AI Act's "GPAI model," which is the term the law actually uses. More on Foundation model
What is GPAI model provider?
The organization that develops a general-purpose AI model and places it on the market. It carries the Article 53 documentation, copyright, and training-summary obligations, and, for the largest models, the Article 55 systemic-risk obligations. Usually not the deployer.
What is downstream provider (provider of an AI system)?
An organization that builds an AI system, often on top of a GPAI model, and places it on the market under its own name. It carries the full obligations attaching to the system's risk class, and can become a provider through the value-chain rules even without training a model.
What is deployer?
An organization that uses an AI system under its own authority in the course of its work, without placing it on the market. Deployers carry duties such as human oversight, use per the instructions, and, for high-risk systems, logging and cooperation. More on Deployer

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