U.S. Commerce Department Restricts Anthropic's Fable 5 and Mythos 5 Models to Foreign Nationals

According to Fortune, on June 13, the U.S. Commerce Department issued an order prohibiting Anthropic from providing access to its latest AI models Fable 5 and Mythos 5 to any foreign nationals, citing national security export controls. The directive applies to individuals outside the U.S., foreign nationals within the country, and Anthropic's own non-U.S. citizen employees. In response, Anthropic closed access to both models for all users, though lower-capability models like Claude Opus 4.8 remain available.

The move may impact Anthropic's IPO prospects. The company has already filed confidential registration documents for a public offering this month, with its latest funding round valuing it at $96.5 billion. Industry observers and investors are concerned that continued restrictions on Anthropic's models could undermine confidence in the company's future growth and competitive position.