Claude Fable 5.1 and Claude Mythos 5.1: Safeguards, pricing, and enterprise access
Summary
Anthropic announces Claude Fable 5.1 and Claude Mythos 5.1, highlighting pricing improvements, enterprise safeguards, and broader access. The release describes data retention changes via Enterprise Frontier Safeguards, improved safety controls, and specialized access programs for Mythos 5.1 in cybersecurity and life sciences. It also covers EU AI Act compliance with watermarking, cost reductions on cache reads, and availability across major cloud platforms.