Key facts
- The U.S. government directed Anthropic to suspend foreign national access to its Fable 5 and Mythos 5 AI models.
- National security concerns were cited as the reason for the directive.
- Anthropic disabled the models for all users to ensure compliance.
- The action is the U.S. government's most significant step to restrict access to advanced AI systems.
- The directive followed an executive order by President Donald Trump on vetting AI risks.
AI giant Anthropic announced Friday it has taken its latest artificial intelligence models, Fable 5 and Mythos 5, offline to comply with a U.S. government directive aimed at preventing their use by foreign nationals. The directive, issued by the Trump administration, cites national security concerns, reportedly related to a discovered method to bypass or 'jailbreak' the models. Anthropic stated it received the order Friday afternoon and that specific national security concerns were not detailed. The company expressed disagreement with the government's handling of the matter, calling it a "misunderstanding" and hoping to restore access as soon as possible. This action represents the U.S. government's most significant step to date in restricting access to advanced AI systems, following an executive order signed by President Donald Trump 10 days prior to establish a framework for vetting the national security risks of cutting-edge AI models.