Anthropic restored global access to Claude Fable 5 on Wednesday after conversations with the US government led to the lifting of export controls that had forced the company to suspend the model in June.

Fable 5 is back. pic.twitter.com/9RTGUCcPHy

— Claude (@claudeai) July 1, 2026

The restrictions were introduced on June 12 and applied to foreign nationals both inside and outside the US. Anthropic disabled Fable 5 and Mythos 5 for all users because it lacked a reliable way to verify nationality in real time. The controls were lifted on June 30.

Anthropic said it has introduced an updated cybersecurity classifier designed to block the behavior that prompted the government action. Requests flagged by the system will be redirected to Claude Opus 4.8, with users notified when the fallback occurs.