OpenAIAnthropicGooglexAIPerplexity
← Back to all updatesPublished ·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.
Primary source
Anthropic modelcard →Keep reading
See what Nova3 builds →Related updates
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