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Anthropic launches Claude Fable 5.1 and Claude Mythos 5.1, including AWS Bedrock availability and agentic-work pricing changes.

Product launch Confirmed 86% confidence first seen

Anthropic released Claude Fable 5.1 and Claude Mythos 5.1, aiming to address customer concerns about pricing, data retention, and overly strict safeguards. The company said the update includes lower costs for agentic workloads via improved prompt caching, and it introduced AWS availability details for data retention and optional enterprise safeguards.

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