Anthropic deprecating Claude Sonnet 4 and Claude Opus 4 — migrate to 4.6 and 4.7
Action Required
Applications using Claude Sonnet 4 or Claude Opus 4 will experience degraded performance or errors after June 15, 2026, necessitating a migration to the newer Claude Sonnet 4.6 and Claude Opus 4.7 models.
AI Impact Summary
Anthropic is sunsetting Claude Sonnet 4 and Claude Opus 4, impacting any applications relying on these models via the Claude API. The deprecation is scheduled for June 15, 2026, requiring immediate migration to the newer Sonnet 4.6 and Opus 4.7 versions. This shift necessitates a thorough review of existing prompts and configurations to ensure compatibility with the updated model architecture.
Affected Systems
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high