Claude Opus 4
ModelActiveby Anthropic · family “claude-opus”
Epoch Capabilities Index
142.7 #94 of 268
90% CI 140.0 – 144.3
Released
22 May 2025
Context window
Unknown
Max output
Unknown
Input $ / 1M tokens
Unknown
Output $ / 1M tokens
Unknown
Cached input $ / 1M
Unknown
Each benchmark shown separately with its own source
Benchmark results (22)
| Benchmark | Domain | Score | vs best recorded | Setting | Run | Source |
|---|---|---|---|---|---|---|
| LMCA | agents | 37.4% | 55% | unknown | — | External ↗ |
| DTBench | reasoning | 81.6% | 82% | unknown | — | External ↗ |
| FrontierMath-Tier-4-2025-07-01-Privatesuperseded | math | 4.2% ±2.9 | 9% | 27K | 1 Jul 2025 | Epoch ↗ |
| DeepResearch Bench | agents | 46.8% | 85% | 2K | — | External ↗ |
| GSO-Bench | coding | 6.9% | 15% | — | — | External ↗ |
| ARC-AGI-2 | reasoning | 8.6% | 9% | 16K | — | External ↗ |
| METR Time Horizons | agents | 63.9% | 75% | 16K | — | External ↗ |
| GeoBench | multimodal | 49.0% | 56% | 32K | — | External ↗ |
| FrontierMath-2025-02-28-Privatesuperseded | math | 4.5% ±1.2 | 9% | — | 4 Jul 2025 | Epoch ↗ |
| Fiction.LiveBench | long-context | 61.1% | 63% | — | — | External ↗ |
| Lech Mazur Writing | other | 83.6% | 97% | 16K | — | External ↗ |
| VPCT | multimodal | 38.0% | 42% | 16K | — | External ↗ |
| HLE | knowledge | 10.7% | 20% | unknown | — | External ↗ |
| WeirdML | coding | 43.7% ±0.0 | 47% | 16K | — | External ↗ |
| Aider polyglot | coding | 72.0% | 82% | 32K | — | External ↗ |
| OTIS Mock AIME 2024-2025 | math | 64.4% ±7.2 | 64% | 27K | 28 May 2025 | Eval log ↗ |
| SimpleBench | reasoning | 58.8% | 72% | 12K | — | External ↗ |
| Cybench | coding | 38.0% | 41% | — | — | External ↗ |
| SWE-Bench verified | coding | 70.7% ±2.1 | 85% | — | 6 Feb 2026 | Eval log ↗ |
| GPQA diamond | science | 76.3% ±3.0 | 80% | 16K | 22 May 2025 | Eval log ↗ |
| MATH level 5 | math | 85.0% ±1.0 | 87% | — | 22 May 2025 | Epoch ↗ |
| ARC-AGI | reasoning | 35.7% | 36% | 16K | — | External ↗ |
Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.
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