Haiku 3 and 3.5 are retired
Claude 3.5 Haiku retired 2026-02-19 and Claude 3 Haiku 2026-04-20; replacement: Haiku 4.5, currently the only Haiku served.
Claude Haiku LLM
(Merged 2026-10-02 from the former note “Anthropic Claude 3.5 Haiku LLM”, which held only the release months below.)
Claude Haiku is the smaller llm in the range of models from Anthropic.
- 2025-10 (released 2025-10-15): Claude Haiku 4.5
- 2024-11: Claude 3.5 Haiku (retired 2026-02-19)
- 2024-03: Claude 3 Haiku (retired 2026-04-20)
Sources
- https://platform.claude.com/docs/en/about-claude/model-deprecations (accessed 2026-09-30)
- https://platform.claude.com/docs/en/models/overview (accessed 2026-09-30)