Claude Opus 4.5 vs Claude Opus 4.6
Head to head on 28 shared benchmarks, with price, context window, and release dates.
Benchmark scores
52evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.6 Anthropic | 67.0% | 1809elo | 77.7 | 40.7% | 89.6% | 39.9% | 53.1% | 84.9% | 78.8% | 78.2% | 69.9% | 63.3% | 83.3% | 89.3% | 88.7% | 48.2% | 86.7% | 68.5% | 50.0% | 51.6% | 51.9% | 44.5 | 72.0% | 75.6% | 76.0% | 46.2% | 57.6% | 92.1% | - | 99.79 | 56.1% | 1.5 | - | 2.08 | 69.0% | - | - | 1223elo | - | - | - | 88771 | 58 | - | 78.5% | - | 93 | - | - | - | - | 80.6 | 68.1% |
| Claude Opus 4.5 Anthropic | 61.3% | 1687elo | 73.1 | 20.7% | 86.6% | 30.1% | 58.0% | 83.5% | 78.1% | 79.7% | 74.4% | 62.5% | 81.3% | 90.4% | 80.1% | 45.2% | 83.2% | 68.7% | 36.0% | 45.0% | 49.5% | 45.3 | 70.7% | 79.2% | 74.3% | 47.0% | 20.6% | 89.5% | 91.3% | - | - | - | 16.7% | - | - | 35.6% | 6.1% | - | 84.7% | 12.13 | 83.8% | - | - | 87.1% | - | 89.5% | - | 100.0% | 37.4 | 77.5% | 61.8 | - | 64.8% |
2 / 2 models
| Attribute | Claude Opus 4.5 Anthropic | Claude Opus 4.6 Anthropic |
|---|---|---|
| Description | Claude Opus 4.5 is an AI model from Anthropic. | Claude Opus 4.6 is an AI model from Anthropic. |
| Family | Claude | Claude |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 24 Nov 2025 | 5 Feb 2026 |
| Context | 200,000 | 1,000,000 |
| Input $/1M | $5.00 | $5.00 |
| Output $/1M | $25.00 | $25.00 |
| Cache read $/1M | $0.500 | $0.500 |
| Cache write $/1M | $6.250 | $6.250 |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | file, image, text | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | Anthropic |
| Reported scores | GPQA Diamond89.6% (AA) Humanity's Last Exam (HLE)39.9% (AA) SciCode51.9% (AA) τ²-bench (Tau²-bench)92.1% (AA) Terminal-Bench (Hard)46.2% (AA) |
FAQ
- Is Claude Opus 4.5 or Claude Opus 4.6 better?
- Across the 28 benchmarks both models report on Sophon, Claude Opus 4.6 leads on 20 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.5 and Claude Opus 4.6 compare on GPQA Diamond?
- Claude Opus 4.5 scores 86.6% and Claude Opus 4.6 scores 89.6% on GPQA Diamond.
- When were Claude Opus 4.5 and Claude Opus 4.6 released?
- Claude Opus 4.5 was released 24 Nov 2025 by Anthropic. Claude Opus 4.6 was released 5 Feb 2026 by Anthropic.
Other head-to-heads
56Claude Opus 4.5 vs GPT-5.235 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.534 shared evalsClaude Opus 4.6 vs GPT-5.433 shared evalsClaude Opus 4.5 vs GPT-5 Mini31 shared evalsClaude Opus 4.6 vs Gemini 3.1 Pro Preview31 shared evalsClaude Opus 4.6 vs Kimi K2.531 shared evalsClaude Opus 4.6 vs GPT-5.230 shared evalsClaude Opus 4.5 vs Grok 4.1 Fast29 shared evalsClaude Opus 4.6 vs Claude Opus 4.729 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.528 shared evalsClaude Opus 4.6 vs GPT-5 Mini28 shared evalsClaude Opus 4.6 vs GPT-5.528 shared evalsClaude Opus 4.5 vs Gemini 3.1 Pro Preview28 shared evalsClaude Opus 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.5 vs GPT-5.428 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsClaude Opus 4.5 vs DeepSeek V3.227 shared evalsClaude Opus 4.6 vs GLM 5.127 shared evalsClaude Opus 4.5 vs GPT-5 Nano26 shared evalsClaude 4 Sonnet vs Claude Opus 4.526 shared evalsClaude Opus 4.5 vs Kimi K2.526 shared evalsClaude Fable 5 vs Claude Opus 4.626 shared evalsClaude Opus 4.6 vs DeepSeek V3.226 shared evalsClaude Opus 4.5 vs GPT-5.525 shared evalsClaude Opus 4.5 vs GLM 4.725 shared evalsClaude Opus 4.5 vs GPT-5.4 Mini25 shared evalsClaude Opus 4.6 vs Grok 4.1 Fast25 shared evalsClaude Opus 4.6 vs GPT-5.4 Mini25 shared evalsClaude Opus 4.5 vs Claude Opus 4.824 shared evalsClaude Opus 4.5 vs Claude Opus 4.724 shared evalsClaude Opus 4.5 vs Gemini 2.5 Pro24 shared evalsClaude Opus 4.6 vs Qwen3.6 Plus24 shared evalsClaude Opus 4.5 vs GPT-523 shared evalsClaude Opus 4.6 vs GPT-5 Nano23 shared evalsClaude Fable 5 vs Claude Opus 4.523 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.623 shared evalsClaude Opus 4.5 vs GLM 5.123 shared evalsClaude Opus 4.5 vs Qwen3.6 Plus22 shared evalsClaude 4 Sonnet vs Claude Opus 4.622 shared evalsClaude Opus 4.5 vs gpt-oss-120b21 shared evalsClaude Opus 4.6 vs Gemini 2.5 Pro21 shared evalsClaude Opus 4.6 vs GLM 4.721 shared evalsClaude Opus 4.6 vs GPT-519 shared evalsClaude Opus 4.6 vs gpt-oss-120b19 shared evalsClaude Opus 4.5 vs GPT-4o18 shared evalsClaude Opus 4.5 vs GPT-4.1 Mini16 shared evalsClaude Opus 4.5 vs GPT-4.116 shared evalsClaude Opus 4.5 vs GPT-4o-mini15 shared evalsClaude Opus 4.5 vs GPT-4.1 Nano15 shared evalsClaude Opus 4.6 vs GPT-4o15 shared evalsClaude Opus 4.6 vs GPT-4.1 Mini13 shared evalsClaude Opus 4.6 vs GPT-4.113 shared evalsClaude Opus 4.6 vs GPT-6 Astra13 shared evalsClaude Opus 4.6 vs GPT-4o-mini12 shared evalsClaude Opus 4.6 vs GPT-4.1 Nano12 shared evalsClaude Opus 4.5 vs GPT-6 Astra11 shared evals
Comparing something else? Build your own side-by-side.