Anthropic: Claude Sonnet 4
- Model ID
- anthropic/claude-sonnet-4
- Canonical slug
- anthropic/claude-4-sonnet-20250522
- Knowledge cutoff
- 2025-01-31
- Created
- 5/22/2025
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...