Claude 4 Sonnet vs Claude Opus 4.6
Head to head on 22 shared benchmarks, with price, context window, and release dates.
Benchmark scores
57evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.6 Anthropic | 67.0% | 1809elo | 77.7 | 89.6% | 39.9% | 53.1% | 78.8% | 78.2% | 69.9% | 63.3% | 83.3% | 89.3% | 88.7% | 48.2% | 86.7% | 68.5% | 51.6% | 51.9% | 75.6% | 76.0% | 46.2% | 92.1% | - | - | 99.79 | 56.1% | 1.5 | - | - | 2.08 | 69.0% | - | 1223elo | 40.7% | - | 84.9% | 88771 | 58 | - | - | 78.5% | - | - | 93 | - | 50.0% | - | - | 44.5 | - | 72.0% | - | 80.6 | - | 57.6% | - | - | 68.1% |
| Claude 4 Sonnet Anthropic | 54.7% | 1483elo | 58.4 | 77.7% | 10.7% | 54.7% | 64.8% | 77.5% | 54.6% | 44.3% | 72.9% | 70.5% | 69.0% | 33.9% | 72.4% | 62.5% | 35.0% | 40.0% | 74.6% | 69.6% | 31.1% | 64.6% | 77.3% | 74.3% | - | - | - | 22.9% | 47.8% | - | - | 19.8% | - | - | 67.5% | - | - | - | 65.5% | 99.1% | - | 86.7% | 84.2% | - | 43.9% | - | 6.18 | 6.18 | - | 58.3% | - | 35.6% | - | 0.59 | - | 84.0% | 84.0% | 59.6% |
2 / 2 models
| Attribute | Claude 4 Sonnet Anthropic | Claude Opus 4.6 Anthropic |
|---|---|---|
| Description | Claude 4 Sonnet 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 | 22 May 2025 | 5 Feb 2026 |
| Context | 200,000 | 1,000,000 |
| Input $/1M | - | $5.00 |
| Output $/1M | - | $25.00 |
| Cache read $/1M | - | $0.500 |
| Cache write $/1M | - | $6.250 |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image | 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 4 Sonnet or Claude Opus 4.6 better?
- Across the 22 benchmarks both models report on Sophon, Claude Opus 4.6 leads on 21 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude 4 Sonnet and Claude Opus 4.6 compare on GPQA Diamond?
- Claude 4 Sonnet scores 77.7% and Claude Opus 4.6 scores 89.6% on GPQA Diamond.
- When were Claude 4 Sonnet and Claude Opus 4.6 released?
- Claude 4 Sonnet was released 22 May 2025 by Anthropic. Claude Opus 4.6 was released 5 Feb 2026 by Anthropic.
Other head-to-heads
56Claude Opus 4.6 vs GPT-5.433 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 4 Sonnet vs GPT-5 Mini29 shared evalsClaude Opus 4.6 vs Claude Opus 4.729 shared evalsClaude 4 Sonnet vs Claude Sonnet 4.528 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 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.5 vs Claude Opus 4.628 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsClaude Opus 4.6 vs GLM 5.127 shared evalsClaude 4 Sonnet vs Claude Opus 4.526 shared evalsClaude Fable 5 vs Claude Opus 4.626 shared evalsClaude Opus 4.6 vs DeepSeek V3.226 shared evalsClaude 4 Sonnet vs GPT-525 shared evalsClaude 4 Sonnet vs GPT-5 Nano25 shared evalsClaude 4 Sonnet vs GPT-5.225 shared evalsClaude 4 Sonnet vs Gemini 2.5 Pro25 shared evalsClaude Opus 4.6 vs Grok 4.1 Fast25 shared evalsClaude Opus 4.6 vs GPT-5.4 Mini25 shared evalsClaude 4 Sonnet vs Grok 4.1 Fast24 shared evalsClaude Opus 4.6 vs Qwen3.6 Plus24 shared evalsClaude 4 Sonnet vs GPT-5.523 shared evalsClaude Opus 4.6 vs GPT-5 Nano23 shared evalsClaude 4 Sonnet vs Gemini 3.1 Pro Preview23 shared evalsClaude 4 Sonnet vs Kimi K2.523 shared evalsClaude 4 Sonnet vs Claude Opus 4.822 shared evalsClaude 4 Sonnet vs Claude Fable 522 shared evalsClaude 4 Sonnet vs GPT-5.422 shared evalsClaude 4 Sonnet vs GLM 4.722 shared evalsClaude 4 Sonnet vs Claude Opus 4.721 shared evalsClaude 4 Sonnet vs DeepSeek V3.221 shared evalsClaude 4 Sonnet 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 4 Sonnet vs GLM 5.120 shared evalsClaude 4 Sonnet vs Claude Sonnet 4.620 shared evalsClaude 4 Sonnet vs GPT-4o20 shared evalsClaude 4 Sonnet vs GPT-4.1 Mini19 shared evalsClaude Opus 4.6 vs GPT-519 shared evalsClaude 4 Sonnet vs GPT-4.119 shared evalsClaude 4 Sonnet vs Qwen3.6 Plus19 shared evalsClaude 4 Sonnet vs GPT-5.4 Mini19 shared evalsClaude Opus 4.6 vs gpt-oss-120b19 shared evalsClaude 4 Sonnet vs GPT-4o-mini18 shared evalsClaude 4 Sonnet vs GPT-4.1 Nano16 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 4 Sonnet vs GPT-6 Astra8 shared evals
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