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← Back to all updatesPublished ·Anthropic◆ Critical
Anthropic model card adds Claude Fable 5 and limited Claude Mythos 5 availability
The read
Model routing tables need updates for Fable 5 GA and Mythos 5 approved customer access.
The frame
Docs list Fable 5 across Claude API, Bedrock, AWS, Google Cloud, and Microsoft Foundry starting June 9, 2026.
Primary source
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