Claude Haiku 4.5 leaves consumer model selectors on October 29
Anthropic will remove Haiku 4.5 from Free, Pro and Max model selectors on October 29. Existing chats remain, but resumed chats will answer with Haiku 5.5.
The big change
What changed: On October 29, Haiku 4.5 leaves the Free, Pro and Max model selectors for chat, Cowork and Design, including Claude Desktop and Mobile. Haiku 5.5 takes its place.
Why it matters: A saved Haiku 4.5 chat remains accessible, but its next response uses Haiku 5.5 after the change. The model that answers a resumed conversation may differ from the one that wrote its earlier replies.
What to watch: Anthropic says Haiku 4.5 remains available in Claude Code, on Team and Enterprise plans, and through the Claude Platform API. The notice does not announce retirement of the model across those products.







