A week later Anthropic, a rival AI firm, made a similar admission. Sam Altman, the boss of OpenAI, and Dario Amodei, who leads Anthropic, have floated similar schemes. But autonomous hacking proves that AI models can be dangerous even if the public cannot get hold of them. Gabe Weil of the Institute for Law and AI, in Massachusetts, proposes a system of strict liability. An open letter from employees at several large AI labs, whose signatories include Dr Amodei, asks for help from America’s government in “pacing” AI progress.