HighDeprecation
Deprecation of Claude Sonnet 4 and Claude Opus 4; retirement on 2026-06-15; migrate to Sonnet 4.6 / Opus 4.6
Action Required
All integrations using claude-sonnet-4-20250514 or claude-opus-4-20250514 must switch to Claude Sonnet 4.6 or Claude Opus 4.6 before 2026-06-15 to avoid service disruption.
AI Impact Summary
Claude Sonnet 4 and Claude Opus 4 are deprecated with a hard retirement date of 2026-06-15. Endpoints claude-sonnet-4-20250514 and claude-opus-4-20250514 will be retired, so downstream integrations must migrate to Claude Sonnet 4.6 or Claude Opus 4.6 before the deadline. Plan a two-stage migration: validate compatibility and prompts against the 4.6 models in a staging environment, then rollout to production, accounting for any differences in latency, pricing, or token handling.
Deprecation of Claude Sonnet 4 and Claude Opus 4; retirement on 2026-06-15; migrate to Sonnet 4.6 / Opus 4.6
Affected Systems
Claude Sonnet 4
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high