HighDeprecation
Claude Sonnet 4 and Claude Opus 4 deprecated; retirement June 15, 2026 — migrate to Claude Sonnet 4.6
Action Required
Applications using claude-sonnet-4-20250514 or claude-opus-4-20250514 must migrate to Claude Sonnet 4.6 before 2026-06-15 to avoid service disruption.
AI Impact Summary
Anthropic is deprecating Claude Sonnet 4 and Claude Opus 4 with retirement scheduled for 2026-06-15. Applications currently invoking claude-sonnet-4-20250514 or claude-opus-4-20250514 must switch to Claude Sonnet 4.6 before the deadline to avoid disruption. Expect potential differences in prompt behavior, token limits, and pricing between these model families; plan validation, regression testing, and update deployment configurations to point at Claude Sonnet 4.6.
Claude Sonnet 4 and Claude Opus 4 deprecated; retirement June 15, 2026 — migrate to Claude Sonnet 4.6
Affected Systems
Claude Sonnet 4
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high