export-control

Anthropic has launched Claude Sonnet 5 and restored access to its Fable and Mythos frontier models after an 18-day operational pause. The suspension began June 12 following a US government export control directive targeting the company's highest-capability systems.

Anthropic disabled its Fable 5 and Mythos 5 AI models on Friday after receiving a U.S. government export control order at 5:21 p.m. ET. The directive, citing national security authorities, instructed the company to suspend all access by foreign nationals, including its own employees.