Sources: US Senate negotiators are debating a bill to impose a "duty of care" for AI companies and let the government block the release of models deemed unsafe (Courtney Rozen/Reuters)

U.S. Senate negotiators are debating legislation that would impose a “duty of care” on AI developers and grant the government authority to block the release of models deemed unsafe. Simultaneously, a coalition of 25 Fields Medalists has signed a declaration condemning the practice of using mathematical problem-solving as a benchmark, arguing it harms the discipline of mathematics.