Anthropic to disable its most advanced AI models after US order limiting foreign access

Anthropic will "abruptly disable" its most advanced AI models for all users following a US government order to suspend access for foreign nationals. The directive, received on June 13, 2026, cites national security concerns, although Anthropic stated it was not provided with specific details. The company indicated that the US government believes its safeguards can be bypassed and that the product could be used to identify software vulnerabilities. The models affected by this order are Fable 5 and Mythos 5. This action reflects growing concerns within governments about the potential misuse of powerful AI technologies and the need for stricter export controls. Anthropic's decision to disable the models globally, rather than just for foreign nationals, suggests a proactive approach to compliance and risk mitigation in response to the government's directive.