Claude Fable 5 and Mythos 5 Suspended, Then Redeployed

Anthropic launched safeguarded Claude Fable 5 for general use and the less-restricted Mythos 5 for vetted Project Glasswing partners on June 9, 2026. On June 12, U.S. export controls required restrictions on foreign nationals; unable to verify nationality in real time, Anthropic suspended both models globally. The controls were lifted on June 30. Fable 5 returned globally on July 1, while Mythos 5 initially returned for approved U.S. organizations.

Anthropic

Status

Verified

Content type

fact

Sources reviewed

2026-07-16

Organizations

Anthropic · U.S. Department of Commerce