Claude Opus 5 vs Claude Sonnet 5
| model Claude Opus 5 Anthropic | model Claude Sonnet 5 Anthropic | |
|---|---|---|
| Context | 1M | 1M |
| Input $/M | — | — |
| Output $/M | — | — |
| Knowledge cutoff | 2026-05 | 2026-01 |
| Available via | Anthropic API | Anthropic API |
| SWE-bench Verified (resolved) | 96 | 85.2 |
| SWE-bench Pro | 79.2% | 63.2% |
| SWE-bench Multilingual | 89.5% | 78.3% |
| SWE-bench Multimodal | 59.4% | — |
| DeepSWE | 68.8% | — |
| FrontierCode (mean@5) | 53.4 | — |
| Terminal-Bench (success rate) | — | 80.4 |
| OSWorld-Verified (success rate) | — | 81.2 |
| BrowseComp (accuracy) | — | 84.7 |