Anthropic has reportedly sent a squad of staffers to Washington to address the administration’s abrupt move to ban foreign governments, companies, and individuals from using Anthropic’s new Fable 5 and Mythos 5 AI models. Senior Anthropic executives and U.S. officials including Commerce Secretary Howard Lutnick and National Cyber Director Sean Cairncross “spent several hours on calls Saturday” discussing the models, according to the Wall Street Journal. Both sides reportedly seemed keen to resolve the issue, but access to both models remains suspended. Months ago, the U.S. military labeled Anthropic a “supply chain risk” after it refused to honor a request to lift safety guardrails. According to Business Insider, soon after the release of the models, “top administration officials developed fresh doubts that the AI's guardrails were as secure as the company had suggested,” following Amazon researchers showing they could evade some of Fable’s safeguards. Anthropic wrote, “We disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people.”