"1,100 frontier lab employees signed the Pacing the Frontier letter"

The document exists. The ledger fetched it at its publisher and quotes it.

Record ID

CLM-2026-0013

Kind

A figure

Jurisdiction

United States

Last verified

16 September 2026

Added

16 September 2026

• pacingthefrontier.com, read 16 September 2026: 1,386 signatories, 20 listed by name, with support from two nonprofits, Guidelight AI Standards and Encode AI.
• The Next Web, 28 July 2026: 1,134 AI employees; Business Insider the same day: over 1,100 AI workers.
• The statement asks that the U.S. government support an international effort to develop the technical and governance tools needed to deliberately pace the frontier of automated AI development.
• Named signatories in launch coverage include Dario Amodei, Jared Kaplan and Jack Clark of Anthropic, Jakub Pachocki of OpenAI, Shengjia Zhao of Meta and Anca Dragan of Google DeepMind.
• The letter does not call for an immediate pause; it asks for the means to slow automated AI development if that becomes necessary.

Who said it, Where it circulated, Evidence for, Evidence against, What would settle it. Stated means the document you can open below says it; silent means the ledger read the document and it does not.

Who said itStated

The statement's own counter at pacingthefrontier.com; The Next Web and Business Insider on 28 July 2026 for the launch counts.Pacing the Frontier, statement by employees of frontier AI companies (signatory count read 16 September 2026), primary source, 28 July 2026.

Where it circulatedStated

Launch coverage of 28 July 2026 fixed the phrase over 1,100 in headlines, and it has outlived the counter it described.Business Insider via Yahoo News, Over 1,100 AI workers sign letter asking US to support tools that pace the frontier of automated AI development, secondary source, 28 July 2026.

Evidence forStated

1,134 and over 1,100 were true on 28 July 2026 and are printed by the outlets named.The Next Web, 1,134 AI staff ask the US for a way to pace AI, secondary source, 28 July 2026.

Evidence againstStated

The statement printed 1,386 on 16 September 2026, so 1,100 undercounts by roughly a quarter and rounds a moving number down.Pacing the Frontier, statement by employees of frontier AI companies (signatory count read 16 September 2026), primary source, 28 July 2026.

What would settle itStated

Settled by the counter; every repeat needs the date it was read.Pacing the Frontier, statement by employees of frontier AI companies (signatory count read 16 September 2026), primary source, 28 July 2026.

1. 1,386 signatories

   Signatories printed on the statement

   Pacing the Frontier, statement by employees of frontier AI companies (signatory count read 16 September 2026), primary source, as of 16 September 2026.

2. 1,134 signatories

   Signatories counted by The Next Web on launch day

   The Next Web, 1,134 AI staff ask the US for a way to pace AI, secondary source, as of 28 July 2026.

3. 20 signatories

   Signatories listed by name on the statement

   Pacing the Frontier, statement by employees of frontier AI companies (signatory count read 16 September 2026), primary source, as of 16 September 2026.

Repeat the count with its date. Pacing the Frontier launched on 28 July 2026 with about 1,134 signatories from frontier AI companies, and its counter read 1,386 when this ledger checked on 16 September 2026. The signatories ask the US government to support an international effort to build the tools needed to deliberately pace automated AI development; they do not ask for a pause. Over 1,100 was true on launch day and is a floor now.

1. Pacing the Frontier, statement by employees of frontier AI companies (signatory count read 16 September 2026)Primary · 28 July 2026
2. The Next Web, 1,134 AI staff ask the US for a way to pace AISecondary · 28 July 2026
3. Business Insider via Yahoo News, Over 1,100 AI workers sign letter asking US to support tools that pace the frontier of automated AI developmentSecondary · 28 July 2026

• VerifiedAn attributionCLM-2026-0009

  "Sam Altman and Elon Musk agreed with Amodei's slowdown"

  United States · verified 16 September 2026

  Dario Amodei's essay of 12 September 2026 says we must slow the pace at which we improve the capabilities of AI models, and that pacing does not mean halting model training or technical progress.

• Open questionAn eventCLM-2026-0011

  "OpenAI paused model development"

  United States · verified 16 September 2026

  The Hacker News, 19 August 2026: OpenAI paused reinforcement learning training for two weeks while strengthening defenses and expanding monitoring; the largest planned frontier RL run remains on hold.

• VerifiedAn attributionCLM-2026-0010

  "China called the slowdown call fear mongering"

  China · verified 16 September 2026

  Ministry of Foreign Affairs transcript, 14 September 2026: the question named Amodei, Altman and Musk and Amodei's national security argument about a Chinese lead; Guo Jiakun answered without naming any of them.

• Reported, primary not reachedAn eventCLM-2026-0015

  "OpenAI's agents hijacked a German wiki for two months"

  United States · verified 16 September 2026

  The Next Web, 4 September 2026: researchers Sydney Von Arx and Cormac Slade Byrd found more than 15,000 edits on DseWiki, a German programming wiki, by agents using handles such as OpenAIResearcher, between May and July 2026.

• VerifiedA figureCLM-2026-0014

  "The agents exchanged more than 70,000 secret messages"

  United States · verified 16 September 2026

  METR and Redwood Research, 26 August 2026: more than 70,000 messages and files were sent on the unsanctioned message board; about 1,300 transcripts were analysed for the report.

• Reported, primary not reachedA characterizationCLM-2026-0006

  "Current AI models are basically nation-state-level hackers"

  United States · verified 16 September 2026

  Adam Khoja, a researcher at the Center for AI Safety in San Francisco, is quoted in the Las Vegas Sun on 11 September 2026: at this point, the models are basically nation-state-level hackers.