Anthropic is redeploying Claude Fable 5, its most capable generally available model. On June 30, it announced that US export controls had lifted. The controls had covered Claude Fable 5 and Claude Mythos 5. Fable 5 returned to users globally on Wednesday, July 1. Mythos 5 access is restored to a set of US organizations.
The models were pulled on June 12. A US government directive restricted them to non-foreign-nationals. Anthropic could not verify nationality in real time. So it suspended both models for everyone.
This article explains what triggered the block. It covers the new safeguard and the proposed jailbreak framework. It also shows how Fable 5 compares to rivals like GLM-5.2.
Quick facts
Model: Claude Fable 5 (a Mythos-class model made safe for general use)
