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← Back to all updatesPublished ·Anthropic• Minor
Anthropic retired Claude Haiku 3; requests to it now return an error.
The read
All requests now fail unless they move to the recommended Claude Haiku 4.5.
The frame
For builders, this is a hard deprecation: replace claude-3-haiku-20240307 with Claude Haiku 4.5.
Primary source
Anthropic →Keep reading
See what Nova3 builds →Related updates
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- Jul 25, 2026Enterprise and Edu users can find skills under Plugins, on the Skills tab in the Plugin Directory.
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