Anthropic · Claude
Claude Sonnet 4
RetiredReleased 1 year ago· May 22, 2025Multimodal model
Claude 4 balanced tier; launched top of SWE-bench Verified at 72.7%. Guide flagged it retiring June 15, 2026 — treated as retired as of the catalog date. $3/$15.
- API string
- claude-sonnet-4-20250514
- Context window
- 200K ctx
- Tier
- Legacy
- Released
- May 22, 2025
Release & change timeline
2 events- Retirement
Claude Sonnet 4 retired
Guide announced claude-sonnet-4-20250514 retiring June 15, 2026; model string returns errors after retirement.
- Release
Claude Sonnet 4 released
Claude 4 generation launch; top of SWE-bench Verified at 72.7%.
Part of the Claude version timeline. Catch Me Up — everything that changed across AI & smart home ↗