US mandates Anthropic to disable Claude Fable 5 and Mythos 5

The U.S. government has mandated that Anthropic disable its advanced AI models, Claude Fable 5 and Mythos 5, due to national security concerns over their potential misuse by adversaries. Anthropic stated it will disable these models globally rather than restrict access by nationality, as it is difficult to verify user identities. The ban arises from fears that the models could be exploited to discover software vulnerabilities.

Mythos 5 is used by select government agencies and corporations for security purposes, while Fable 5 was designed for general use but may be vulnerable to jailbreaking. This decision reflects concerns about the implications of AI technology in both defense and potential abuse, as existing models remain available for normal users.