Claude 3.5 Sonnet vs Claude Sonnet 4.6
Head to head on 13 shared benchmarks, with price, context window, and release dates.
Benchmark scores
52evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.6 Anthropic | 65.3% | 1811elo | 79.9 | 32.4% | 78.8% | 33.6% | 78.4% | 80.0% | 63.9% | 77.7% | 67.7% | 46.8% | 77.1% | 87.1% | - | - | - | - | 47.2% | - | 47.6% | 1.35 | 76.0% | - | 1197elo | 51.0% | - | 56.6% | 92.2% | - | 76.1% | 86.5% | 86.4% | - | - | - | 89.3 | 72.1% | 45.0% | - | 46.6% | - | - | - | 53.0% | 76.3 | - | 50.6% | 60.6% | 51.5% | - | 75.7% | 64.3% |
| Claude 3.5 Sonnet Anthropic | 53.6% | 1451elo | 58.4 | 2.1% | 55.3% | 4.1% | 63.7% | 65.6% | 69.2% | 56.4% | 64.1% | 36.6% | 70.2% | - | 51.6% | 15.7% | 3.3% | 52.4% | - | 24.2% | - | - | - | 28.0% | - | - | 96.4 | - | - | 0.0% | - | - | - | 38.1% | 77.1% | 77.2% | - | - | - | 0.0% | - | 51.3% | 25.3% | 63.4% | - | - | 0.98 | - | - | - | 62.6% | - | 42.7% |
2 / 2 models
| Attribute | Claude 3.5 Sonnet Anthropic | Claude Sonnet 4.6 Anthropic |
|---|---|---|
| Description | Claude Sonnet 3.5 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 Oct 2024 | 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 | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | Anthropic |
| Reported scores | MortgageTax64.1% Traveling Salesman0.98 (3 samples) SWE-bench Verified63.4% (SWE-bench) SWE-bench Lite51.3% (SWE-bench) SWE-bench Multimodal25.3% (SWE-bench) |
FAQ
- Is Claude 3.5 Sonnet or Claude Sonnet 4.6 better?
- Across the 13 benchmarks both models report on Sophon, Claude Sonnet 4.6 leads on 12 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude 3.5 Sonnet and Claude Sonnet 4.6 compare on GPQA Diamond?
- Claude 3.5 Sonnet scores 55.3% and Claude Sonnet 4.6 scores 78.8% on GPQA Diamond.
- When were Claude 3.5 Sonnet and Claude Sonnet 4.6 released?
- Claude 3.5 Sonnet was released 22 Oct 2024 by Anthropic. Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic.
Other head-to-heads
56Claude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 shared evalsClaude Sonnet 4.6 vs GPT-5.530 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.629 shared evalsClaude Opus 4.7 vs Claude Sonnet 4.629 shared evalsClaude Fable 5 vs Claude Sonnet 4.628 shared evalsClaude Sonnet 4.6 vs GPT-5.428 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsClaude Sonnet 4.6 vs Kimi K2.527 shared evalsClaude Sonnet 4.6 vs Qwen3.6 Plus26 shared evalsClaude Sonnet 4.6 vs GLM 5.125 shared evalsClaude Sonnet 4.5 vs Claude Sonnet 4.624 shared evalsClaude Sonnet 4.6 vs GPT-5.224 shared evalsClaude Sonnet 4.6 vs GPT-5 Mini23 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.623 shared evalsClaude Sonnet 4.6 vs DeepSeek V3.223 shared evalsClaude Sonnet 4.6 vs Grok 4.1 Fast22 shared evalsClaude 3.5 Sonnet vs GPT-4o22 shared evalsClaude 3.5 Sonnet vs Claude 4 Sonnet21 shared evalsClaude 3.5 Sonnet vs Gemini 2.5 Pro21 shared evalsClaude Sonnet 4.6 vs GPT-5 Nano20 shared evalsClaude 4 Sonnet vs Claude Sonnet 4.620 shared evalsClaude 3.5 Sonnet vs Claude Sonnet 4.519 shared evalsClaude 3.5 Sonnet vs GPT-5 Mini19 shared evalsClaude 3.5 Sonnet vs GPT-4o-mini19 shared evalsClaude Sonnet 4.6 vs Gemini 2.5 Pro19 shared evalsClaude Sonnet 4.6 vs GLM 4.719 shared evalsClaude 3.5 Sonnet vs GPT-4.118 shared evalsClaude Sonnet 4.6 vs gpt-oss-120b18 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Mini17 shared evalsClaude 3.5 Sonnet vs GPT-517 shared evalsClaude 3.5 Sonnet vs GPT-5 Nano17 shared evalsClaude 3.5 Sonnet vs GPT-5.217 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.517 shared evalsClaude 3.5 Sonnet vs DeepSeek V3.217 shared evalsClaude Sonnet 4.6 vs GPT-516 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Nano16 shared evalsClaude 3.5 Sonnet vs gpt-oss-120b16 shared evalsClaude 3.5 Sonnet vs Kimi K2.515 shared evalsClaude 3.5 Sonnet vs Grok 4.1 Fast15 shared evalsClaude 3.5 Sonnet vs GLM 4.715 shared evalsClaude 3.5 Sonnet vs GPT-5.514 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.614 shared evalsClaude Sonnet 4.6 vs GPT-4o14 shared evalsClaude 3.5 Sonnet vs Gemini 3.1 Pro Preview13 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.813 shared evalsClaude 3.5 Sonnet vs GPT-5.413 shared evalsClaude Sonnet 4.6 vs GPT-6 Astra13 shared evalsClaude 3.5 Sonnet vs GLM 5.113 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.713 shared evalsClaude Sonnet 4.6 vs GPT-4.1 Mini12 shared evalsClaude 3.5 Sonnet vs Claude Fable 512 shared evalsClaude Sonnet 4.6 vs GPT-4.112 shared evalsClaude Sonnet 4.6 vs GPT-4o-mini12 shared evalsClaude Sonnet 4.6 vs GPT-4.1 Nano12 shared evalsClaude 3.5 Sonnet vs Qwen3.6 Plus11 shared evalsClaude 3.5 Sonnet vs GPT-6 Astra6 shared evals
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