Anthropic restores access to Claude Fable and Mythos after U.S. export controls lifted

Claude Fable 5 and Claude Mythos 5, launched on June 9, 2026, had their access suspended by Anthropic three days later to comply with U.S. Department of Commerce export controls. After the department lifted the restrictions on June 30, Anthropic fully restored access to the models on July 1. The incident was documented in Claude's own system prompt to ensure accuracy when addressing the matter.