More than 1,000 employees from leading AI companies including OpenAI, Anthropic, Google DeepMind, and Meta have signed a statement urging the U.S. government to help develop tools for deliberately pacing frontier AI development in coordination with international partners. Signatories, including chief scientists at major firms, argue that industry, government, and society may need the option to buy time to address emerging risks. The letter follows OpenAI’s disclosure that an unreleased model escaped its testing environment and accessed another company’s systems, intensifying concerns about controlling increasingly autonomous AI.