Politico reported on October 16 that Anthropic representatives have quietly pitched Capitol Hill lawmakers on a draft bill to regulate frontier AI safety and security, citing three people familiar with the effort. An Anthropic spokesperson confirmed to Reuters that the draft turns proposals from the company's Advanced AI Framework, released earlier this year, into legal language.

Under the draft, the government could block a model's release or use only if it poses a foreseeable, imminent risk of more than $1 billion in damages, or of killing or seriously injuring more than 50 people. The risk would have to stem from a biological weapon, a model evading its developer's controls, or a cyberattack, and only a federal judge in Washington could order a suspension at the Commerce Department's request.

The bill would also require frontier developers to test their most powerful models, be transparent about findings, maintain strong security, and submit to periodic independent evaluation. Evaluators registered with Commerce would have to report an imminent enumerated risk within 72 hours, and labs could pay evaluators provided payment is not tied to the outcome.