The Trump administration ordered Anthropic to disable access to its newest AI systems, citing unspecified national-security risks after Amazon’s Andy Jassy warned the White House that the company’s Fable 5 could circumvent safety guardrails. In response to abrupt export restrictions, Anthropic cut off user access to Fable 5 and the more advanced Mythos 5, moves the company said were necessary to comply. The action underscores a sharp policy turn in Washington as a recent executive order expands pre-release scrutiny of frontier models by national-security and cybersecurity officials. Industry researchers criticized the decision as overreach that removes leading tools from defenders and injects uncertainty into the market. The dispute follows months of tensions between Anthropic and the U.S. government over Pentagon usage and supply-chain risk designations. The episode highlights growing anxiety over AI-enabled cyber and bio threats and the broader strategic contest with China, with companies bracing for tighter oversight of advanced models.
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