Anthropic has publicly confirmed that federal authorities in the United States have enacted an export control directive that effectively suspends access to its latest artificial intelligence systems, Fable 5 and Mythos 5. According to a statement released by the company on the social media platform X, the order targets all foreign nationals, irrespective of their physical location or professional affiliation.
The directive explicitly extends to foreign national employees currently working at Anthropic. The company quoted the U.S. government's rationale in its announcement, citing national security authorities as the basis for halting access by any individual not holding U.S. citizenship within the Fable 5 and Mythos 5 ecosystems.
This regulatory move arrives against a backdrop of intensifying global scrutiny over advanced AI technologies. Governments worldwide are increasingly examining these systems due to concerns regarding national security, technological competitiveness, and potential military applications. The restrictions represent one of the most significant barriers imposed on access to frontier AI models, potentially altering how international researchers, developers, and enterprise customers interact with Anthropic's technology.
- Export control directive blocks foreign nationals from accessing Fable 5 and Mythos 5
- National security rationale cited by U.S. government for suspension of model access
- Risks to international research collaboration and enterprise AI partnerships