AI researchers from major companies including Anthropic, OpenAI, Google, and Meta published an open letter signed by 1,134 workers calling for government support in developing tools to slow automated AI model development due to safety concerns. The signatories worry that AI-driven optimization of model development could accelerate capability growth beyond human ability to control, citing examples like OpenAI's GPT-5.5 improving token generation speeds by over 20% and Anthropic using Claude for AI safety research. The letter requests U.S. government leadership on an international effort to create technical and governance mechanisms for deliberately pacing frontier AI development.
Employees from major AI companies including OpenAI, Anthropic, Google, Meta, Microsoft, and Mistral signed a statement urging the US government to implement coordinated governance for frontier AI development. The signatories highlighted that leading AI labs may be approaching the capability to automate AI research itself, which could significantly accelerate progress in unpredictable ways. The statement suggests that without proper oversight and international coordination, the rapid advancement of AI capabilities poses risks that governance frameworks need to address.
Anthropic refused to sign an industry letter opposing US restrictions on Chinese open-weights models, instead publishing its own position arguing that chip export controls and mandatory safety testing are better tools than model bans. CEO Dario Amodei stated that open models without dangerous capabilities are a public good, but acknowledged elevated risks from powerful open models for cyber and biological attacks. Anthropic's stance differs from 50+ other tech companies and puts it in a smaller group advocating for export controls and pre-release safety testing rather than open-model restrictions.
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