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Published ·Anthropic◆ Critical

Anthropic removed modelcard guidance for Claude Fable 5, Mythos 5, and model selection.

The read

Treat prior Fable 5 and Mythos 5 availability details as unstable until the page restores or replaces them.

The frame

Removed block included model recommendations, channel availability, June 9, 2026 timing, and Project Glasswing access language.

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Anthropic modelcard
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