OpenAIAnthropicGooglexAIPerplexity
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Published ·Anthropic◆ Critical

Anthropic removed the modelcard guidance listing Claude Fable 5 and Mythos 5.

The read

Model selection and availability references for those Claude 5 SKUs are no longer present on the monitored page.

The frame

Critical because the removed text covered model choice, access channels, API changes, and release timing.

Primary source
Anthropic modelcard
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