Redeploying Fable 5
Summary
Anthropic reports that export controls on Claude Fable 5 and Mythos 5 were lifted and Fable 5 reopens globally with safeguards, while Mythos 5 access remains restricted to a subset of US organizations. The piece details new safety classifiers, a safety-margin to block benign-but-misused requests, and a proposed industry framework for jailbreak assessment developed with partner firms and government. It also outlines deeper government collaboration and future testing and information sharing.