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← Back to all updatesPublished ·Anthropic• Minor
Anthropic announced Claude Opus 4.1 deprecation and scheduled Claude API retirement for August 5, 2026.
The read
Opus 4.1 API users have a dated migration window to move onto Claude Opus 4.8.
The frame
This sits in Anthropic’s model deprecations flow, so builders need to audit dependencies on claude-opus-4-1-20250805.
Primary source
Anthropic →Keep reading
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- Jul 25, 2026Enterprise and Edu users can find skills under Plugins, on the Skills tab in the Plugin Directory.
- Jul 25, 2026Anthropic removed modelcard language for Claude Fable 5 and Claude Mythos 5.
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