claude-3-haiku-20240307 retirement date and replacement

Name: claude-3-haiku-20240307 retires (Claude API)
Start: 2026-04-20
End: 2026-04-20

Claude API · Model · retired Apr 20, 2026 (retired)

Dates

Checked Nov 9, 2026 on Anthropic's page

Retired	Apr 20, 2026 (retired)
Announced	Feb 19, 2026
Replacement	claude-haiku-4-5-20251001
What it is	claude-3-haiku-20240307 stopped answering on Claude API.
Source	platform.claude.com/docs/en/about-claude/model-deprecations