Claude Platform release notes — April 20, 2026
4 months agoOriginal notes
- We've retired the Claude Haiku 3 model (
claude-3-haiku-20240307). All requests to this model will now return an error. We recommend upgrading to Claude Haiku 4.5.
claude-3-haiku-20240307). All requests to this model will now return an error. We recommend upgrading to Claude Haiku 4.5.