The US government has directed Anthropic to shut down access to its most powerful AI models, Fable 5 and Mythos 5, worldwide, citing national security concerns. Anthropic is complying but publicly pushing back.
The export control directive bans all access to Fable 5 and Mythos 5 by foreign nationals, whether they're inside or outside the US. Even Anthropic's own foreign employees are affected.
To comply, Anthropic has to cut off access for all customers worldwide. All other Anthropic models remain available, according to the company's statement. Anthropic calls the move a "misunderstanding" and says it's working to restore access as quickly as possible. The company plans to share more details within 24 hours.
Government claims jailbreak risk, Anthropic disagrees
According to Anthropic, the government believes it has found a method to bypass Fable 5's safety measures. The company says it reviewed a demo of the technique and found it identifies only "a small number of previously known, minor vulnerabilities" that other publicly available models could also detect.
