HighDeprecation
Claude Sonnet 4 and Claude Opus 4 retirement scheduled for 2026-06-15 — migrate to Sonnet 4.6 / Opus 4.6
Action Required
Applications using Claude Sonnet 4 or Claude Opus 4 must migrate to Sonnet 4.6 or Opus 4.6 before 2026-06-15 to avoid service disruption.
AI Impact Summary
Claude Sonnet 4 and Claude Opus 4 are entering deprecation with endpoints claude-sonnet-4-20250514 and claude-opus-4-20250514 slated for retirement. The Claude API-wide retirement is scheduled for 2026-06-15, requiring migration to Sonnet 4.6 and Opus 4.6. Customers should plan a phased transition: update clients to the 4.6 endpoints, verify feature parity and latency, and run parallel traffic to minimize risk of downtime from model discontinuation.
Claude Sonnet 4 and Claude Opus 4 retirement scheduled for 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