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← Back to all updatesPublished ·Anthropic◆ Critical
Anthropic modelcard removed Models overview text covering Claude Fable 5 and Mythos 5.
The read
Any integration using the named IDs now needs fresh documentation verification before routing work.
The frame
The deleted text named `claude-fable-5`, `claude-mythos-5`, Project Glasswing, Bedrock, Vertex AI, and Microsoft Foundry.
Primary source
Anthropic modelcard →Keep reading
See what Nova3 builds →Related updates
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- Jul 26, 2026OpenAI updated GPT-5.5 Instant to improve conversational quality in decision, advice, planning, research, and shopping tasks.
- Jul 25, 2026Enterprise and Edu users can find skills under Plugins, on the Skills tab in the Plugin Directory.
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