Claude Sonnet 4 and Opus 4 deprecation announced
Announced the deprecation of the Claude Sonnet 4 model (claude-sonnet-4-20250514) and the Claude Opus 4 model (claude-opus-4-20250514), with retirement on the Claude API scheduled for June 15, 2026. Migration to Claude Sonnet 4.6 and Claude Opus 4.7 is recommended.
Fetched May 22, 2026

