OpenAI, Anthropic, Meta and DeepMind chiefs appear on the frontier slowdown letter

ShakeelHashim · x · 2026-07-29

This reply adds the headline signatories to the open letter asking governments to pace frontier AI development.

It says the letter is signed by John Schulman, Jakub Pachocki, Jared Kaplan, Shengjia Zhao, Jack Clark, Mark Chen, Anca Dragan, Wojciech Zaremba, Dawn Song, Chris Olah, and others. The post underscores that the statement is not a fringe petition but a cross-lab effort involving chiefs and senior leaders from OpenAI, Anthropic, Meta, and Google DeepMind.

Related event: Over 1,000 AI Employees Petition to Pace Frontier AI Development(118 posts)→

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