Claude 4 Sonnet vs Claude Sonnet 4.6
Head to head on 20 shared benchmarks, with price, context window, and release dates.
Benchmark scores
55evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.6 Anthropic | 65.3% | 1805elo | 79.9 | 79.7% | 11.2% | 42.4% | 78.4% | 80.0% | 76.1% | 63.9% | 77.7% | 86.5% | 86.4% | 67.7% | 72.1% | 46.6% | 44.1% | 77.1% | 42.4% | 78.9% | 87.1% | - | - | 47.2% | 47.6% | - | - | 1.35 | 78.0% | - | 1207elo | 51.0% | 32.4% | - | 92.2% | - | - | - | - | - | - | 89.3 | 45.0% | - | - | - | - | - | 76.3 | - | 50.6% | 60.6% | 51.5% | - | - | 62.8% |
| Claude 4 Sonnet Anthropic | 54.7% | 1480elo | 58.4 | 68.3% | 4.3% | 45.4% | 64.8% | 77.5% | 54.6% | 44.3% | 72.9% | 70.5% | 69.0% | 62.5% | 43.9% | 35.0% | 37.3% | 69.6% | 27.3% | 52.3% | - | 40.7% | 38.0% | - | - | 22.9% | 47.8% | - | - | 19.8% | - | - | - | 67.5% | - | 44.9% | 93.4% | 33.9% | 72.4% | 86.7% | 83.7% | - | - | 6.18 | 6.18 | 58.3% | 35.6% | 74.6% | - | 0.59 | - | - | - | 84.0% | 84.0% | 55.5% |
2 / 2 models
| Attribute | Claude 4 Sonnet Anthropic | Claude Sonnet 4.6 Anthropic |
|---|---|---|
| Description | Claude 4 Sonnet is an AI model from Anthropic. | Claude Sonnet 4.6 is an AI model from Anthropic. |
| Family | Claude | Claude |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 22 May 2025 | 17 Feb 2026 |
| Context | 200,000 | 1,000,000 |
| Input $/1M | $3.00 | $3.00 |
| Output $/1M | $15.00 | $15.00 |
| Cache read $/1M | - | $0.300 |
| Cache write $/1M | - | $3.750 |
| Speed | 0 tok/s | 45 tok/s |
| Latency | 0.00 s | 1.12 s |
| Modalities | text, image | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | Anthropic |
| Reported scores | GPQA Diamond79.7% (AA) Humanity's Last Exam (HLE)11.2% (AA) IFBench42.4% (AA) SciCode44.1% (AA) τ²-bench (Tau²-bench)78.9% (AA) |
FAQ
- Is Claude 4 Sonnet or Claude Sonnet 4.6 better?
- Across the 20 benchmarks both models report on Sophon, Claude Sonnet 4.6 leads on 19 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude 4 Sonnet and Claude Sonnet 4.6 compare on GPQA Diamond?
- Claude 4 Sonnet scores 68.3% and Claude Sonnet 4.6 scores 79.7% on GPQA Diamond.
- When were Claude 4 Sonnet and Claude Sonnet 4.6 released?
- Claude 4 Sonnet was released 22 May 2025 by Anthropic. Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic.
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