Every international user of Anthropic’s two newest AI models just got locked out. The Trump administration declared Claude Fable 5 and Claude Mythos 5 security risks, imposing export controls that effectively cut off access for anyone outside the US or its approved partner network.
The timing is remarkable. Anthropic launched both models on June 9, 2026, positioning them as the company’s most capable AI systems to date. Days later, the government stepped in, requiring Anthropic to obtain permits for any deployment outside US borders or to foreign entities.
What happened and why it matters
Anthropic released two distinct versions of its latest technology, each serving a different purpose. Fable 5 is the public-facing model, built with enhanced safety guardrails designed to prevent harmful outputs. Mythos 5 is the restricted sibling, a more powerful cybersecurity-focused model made available only to vetted users through a program called Project Glasswing, which includes US government cyber defenders.
Mythos 5 ships without the safety guardrails that constrain Fable 5, making it far more capable for offensive and defensive cybersecurity operations. That plan unraveled when another company reportedly managed to jerry-rig Mythos to bypass its security features, raising immediate alarms in Washington.
