Claude Sonnet 4.6 vs GPT-5 Nano
Head to head on 20 shared benchmarks, with price, context window, and release dates.
Benchmark scores
64evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Claude Sonnet 4.6 Anthropic | 1810elo | 79.9 | 32.4% | 87.5% | 33.6% | 56.6% | 78.4% | 80.0% | 76.1% | 63.9% | 77.7% | 86.5% | 86.4% | 67.7% | 45.0% | 46.6% | 50.1% | 77.1% | 53.0% | 75.7% | 87.1% | - | - | 47.2% | 47.6% | - | - | - | 1.35 | 65.3% | 76.0% | - | 1207elo | 51.0% | - | - | - | 92.2% | - | - | - | - | - | - | - | - | - | 89.3 | - | - | 72.1% | - | - | - | 76.3 | - | 50.6% | 60.6% | - | - | 51.5% | - | - | - | 64.7% |
| GPT-5 Nano OpenAI | 705elo | 28 | 8.3% | 67.6% | 9.5% | 67.6% | 52.8% | 62.4% | 43.4% | 55.7% | 46.8% | 68.4% | 40.3% | 53.6% | 12.0% | 30.4% | 36.6% | 67.4% | 12.1% | 36.5% | - | 0.0% | 83.7% | - | - | 0.25 | 0.21 | 6.7% | - | - | - | 10.0% | - | - | 78.2% | 1.18 | 100.0% | - | 78.9% | 1.38 | 1.38 | 100.0% | 100.0% | 26.7% | 30.4% | 72.9% | 78.0% | - | 100.0% | 0.0% | - | 0.0% | 1.72 | 34.8% | - | 29.7% | - | - | 20.41 | -6.67 | - | 82.0% | 82.0% | 40.0% | 48.9% |
2 / 2 models
| Attribute | Claude Sonnet 4.6 Anthropic | GPT-5 Nano OpenAI |
|---|---|---|
| Description | Claude Sonnet 4.6 is an AI model from Anthropic. | GPT-5 nano is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 17 Feb 2026 | 7 Aug 2025 |
| Context | 1,000,000 | 400,000 |
| Input $/1M | $3.00 | $0.05 |
| Output $/1M | $15.00 | $0.40 |
| Cache read $/1M | $0.300 | $0.005 |
| Cache write $/1M | $3.750 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores |
FAQ
- Is Claude Sonnet 4.6 or GPT-5 Nano 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 Sonnet 4.6 and GPT-5 Nano compare on GPQA Diamond?
- Claude Sonnet 4.6 scores 87.5% and GPT-5 Nano scores 67.6% on GPQA Diamond.
- Which is cheaper, Claude Sonnet 4.6 or GPT-5 Nano?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $15.00 for Claude Sonnet 4.6 - about 37.5x.
- When were Claude Sonnet 4.6 and GPT-5 Nano released?
- Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic. GPT-5 Nano was released 7 Aug 2025 by OpenAI.
Other head-to-heads
56GPT-5 Mini vs GPT-5 Nano38 shared evalsClaude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 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 evalsGPT-5 vs GPT-5 Nano28 shared evalsClaude Fable 5 vs Claude Sonnet 4.628 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsClaude Sonnet 4.6 vs GPT-5.428 shared evalsClaude Sonnet 4.6 vs GPT-5.4 Mini28 shared evalsClaude Sonnet 4.6 vs Kimi K2.527 shared evalsGPT-4.1 Mini vs GPT-5 Nano26 shared evalsGPT-5 Nano vs GPT-5.226 shared evalsClaude Opus 4.5 vs GPT-5 Nano26 shared evalsClaude Sonnet 4.6 vs Qwen3.6 Plus26 shared evalsClaude 4 Sonnet vs GPT-5 Nano25 shared evalsClaude Sonnet 4.6 vs GLM 5.125 shared evalsClaude Sonnet 4.5 vs Claude Sonnet 4.624 shared evalsGemini 2.5 Pro vs GPT-5 Nano24 shared evalsGPT-5 Nano vs Grok 4.1 Fast24 shared evalsClaude Sonnet 4.6 vs GPT-5.224 shared evalsClaude Sonnet 4.6 vs GPT-5 Mini23 shared evalsGPT-5 Nano vs GPT-5.523 shared evalsClaude Opus 4.6 vs GPT-5 Nano23 shared evalsGLM 4.7 vs GPT-5 Nano23 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.623 shared evalsClaude Sonnet 4.6 vs DeepSeek V3.223 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsClaude Opus 4.8 vs GPT-5 Nano22 shared evalsGPT-5 Nano vs GPT-5.422 shared evalsGPT-5 Nano vs Kimi K2.522 shared evalsClaude Opus 4.7 vs GPT-5 Nano22 shared evalsDeepSeek V3.2 vs GPT-5 Nano22 shared evalsGPT-4.1 Nano vs GPT-5 Nano22 shared evalsGPT-5 Nano vs gpt-oss-120b22 shared evalsClaude Sonnet 4.6 vs Grok 4.1 Fast22 shared evalsClaude Fable 5 vs GPT-5 Nano21 shared evalsGLM 5.1 vs GPT-5 Nano21 shared evalsGPT-4.1 vs GPT-5 Nano20 shared evalsGPT-5.4 Mini vs GPT-5 Nano20 shared evalsClaude 4 Sonnet vs Claude Sonnet 4.620 shared evalsGPT-5 Nano vs Qwen3.6 Plus19 shared evalsClaude Sonnet 4.6 vs Gemini 2.5 Pro19 shared evalsClaude Sonnet 4.6 vs GLM 4.719 shared evalsGPT-4o vs GPT-5 Nano18 shared evalsClaude Sonnet 4.6 vs gpt-oss-120b18 shared evalsClaude Sonnet 4.6 vs GPT-516 shared evalsGPT-4o-mini vs GPT-5 Nano16 shared evalsClaude Sonnet 4.6 vs GPT-4o14 shared evalsClaude Sonnet 4.6 vs GPT-6 Astra13 shared evalsClaude Sonnet 4.6 vs GPT-4.1 Mini12 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 evalsGPT-5 Nano vs GPT-6 Astra10 shared evals
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