The US government ordered AI company Anthropic to suspend all access by foreign nationals to its Mythos 5 and Fable 5 models, its most capable AI systems, Anthropic said in a statement Friday evening. As a result, Anthropic has disabled access to those models for all of its customers.

Anthropic said it received a government directive banning all foreign nationals, even those working at Anthropic, from accessing Fable 5 and Mythos 5 over national security…

Anthropic suspended global access to Mythos 5 and Fable 5 AI models after a US Commerce Department directive citing national security cybersecurity risks.