Claude Sonnet 4
- Made by
- Anthropic
- Released
- Announced in
- Introducing Claude 4anthropic.com
- Event
- Claude 4 (Opus 4 and Sonnet 4)
- API record
- /api/v1/models/claude-sonnet-4
Benchmark results
| Benchmark | Score | Source check |
|---|---|---|
| SWE-bench Verifiedno extended thinking; bash and file-editing tools; full 500 problems | 72.7% | CheckedA person checked this number against its source on 17 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
| parallel test-time compute · parallel test-time compute | 80.2% | CheckedA person checked this number against its source on 17 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
| GPQA Diamondextended thinking up to 64K tokens | 75.4% | CheckedA person checked this number against its source on 17 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced.CorroboratedThe same number is printed in 1 other lab document: 1 |
| no extended thinking | 70.0% | CheckedA person checked this number against its source on 17 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced.CorroboratedThe same number is printed in 1 other lab document: 1 |
| parallel test-time compute: best of several samples by an internal scoring model · parallel test-time compute | 83.8% | CheckedA person checked this number against its source on 17 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
Sources
Reported by Anthropic
- Introducing Claude 4anthropic.com · 22 May 2025
Original image 
Our capture of the source
