Anthropic Releases Claude Fable 5 and Claude Mythos 5: Same Underlying Model, Different Safeguards, New Mythos-Class Tier

Summary

<p>Claude Fable 5 ships generally available with classifiers; Mythos 5 stays limited, cyber safeguards lifted, through Project Glasswing.</p> <p>The post <a href="https://www.marktechpost.com/2026/06/10/anthropic-releases-claude-fable-5-and-claude-mythos-5-same-underlying-model-different-safeguards-new-mythos-class-tier/">Anthropic Releases Claude Fable 5 and Claude Mythos 5: Same Underlying Model, Different Safeguards, New Mythos-Class Tier</a> appeared first on <a href="https://www.marktechpost.com">MarkTechPost</a>.</p>