| Benchmark | Claude Sonnet 4.5 | Opus 5 |
|---|---|---|
| AA Agentic Index | 50.6 | 59.2 |
| AA Intelligence | 37.4 | 63.1 |
| AA-LCR | 68.3 | 78.7 |
| AA-Omniscience | -0.1 | 37.1 |
| arc_agi_1 | 63.7 | 97.5 |
| ARC-AGI-2 | 13.6 | 90.4 |
| arena_elo | 1456 | 1487 |
| arena_text_factuality | 1448 | 1481 |
| Artificial Analysis Coding Index | 52.1 | 78 |
| browsecomp | 24.1 | 90.8 |
| coding_arena_elo | 1392 | 1662 |
| critpt | 1.1 | 29.1 |
| gdpval | 40.4 | 67.2 |
| GPQA Diamond | 83.4 | 93.7 |
| HealthBench | 44.2 | 67.1 |
| HLE | 19.8 | 64.7 |
| HLE (with tools) | 32 | 64.7 |
| MCP Atlas | 59.5 | 85.8 |
| MMMU-Pro | 68.7 | 84.7 |
| OmniScience Accuracy | 32.9 | 60.9 |
| OmniScience Non-Hallucination | 50.9 | 40.5 |
| OSWorld-Verified | 61.4 | 4 |
| scicode | 45 | 55.7 |
| simplebench | 54.3 | 80.6 |
| simpleqa_verified | 23.6 | 56.7 |
| SWE-bench Multilingual | 68 | 89.5 |
| SWE-bench Pro | 43.6 | 79.2 |
| SWE-bench Verified | 82 | 96 |
| TauBench V3 - Banking | 24.5 | 44.7 |
| Terminal-Bench 2.1 | 55.8 | 89.1 |
Best tracked score per model per benchmark (default configuration; source-attributed). ↓ marks lower-is-better metrics. Open either model for its full surface, provenance and pricing.