GPT-5 vs GPT-5 Nano
Head to head on 28 shared benchmarks, with price, context window, and release dates.
Benchmark scores
83evals · sort by any column, ⤢ to expand fullscreen
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| GPT-5 OpenAI | 94.3% | 0.15 | 57.7% | 1627elo | 72.8 | 91.7% | 32.4% | 85.4% | 100.0% | 28.5% | 73.1% | 84.6% | 0.52 | 1.62 | 49.6% | 83.7% | 87.1% | 65.5% | 0.0% | 18.0% | 43.7% | 42.9% | 74.4% | 73.4% | 32.6% | 90.0% | 90.0% | 84.8% | 46.7% | 91.1% | - | 88.0% | 94.6% | 0.0% | - | 0.0% | 68.1% | 4.58 | - | 61.1% | 80.0% | 80.0% | - | 0.0% | 88.9% | 83.3% | 48.9% | 83.4% | 58.2% | - | - | - | - | - | - | - | 37.5% | 100.0% | - | - | 99.4% | 0.0% | 92.7% | 92.7% | - | 93.3% | 10.0% | 0.0% | - | 60.0% | - | 0.26 | - | 74.9% | 2.34 | - | 87.5% | 0.86 | - | - | 20.1% | 54.8% | - | 61.9% |
| GPT-5 Nano OpenAI | 83.7% | 0.25 | 10.0% | 705elo | 28 | 78.2% | 8.3% | 67.6% | 100.0% | 9.5% | 67.6% | 78.9% | 1.38 | 1.38 | 30.4% | 72.9% | 78.0% | 53.6% | 0.0% | 12.0% | 30.4% | 36.6% | 34.8% | 67.4% | 12.1% | 82.0% | 82.0% | 36.5% | - | - | 0.0% | - | - | - | 0.21 | - | - | - | 6.7% | - | - | - | 1.18 | - | - | - | - | - | - | 52.8% | 62.4% | 43.4% | 55.7% | 46.8% | 68.4% | 40.3% | - | - | 100.0% | 100.0% | - | - | - | - | 26.7% | - | - | - | 100.0% | - | 0.0% | - | 1.72 | - | - | 29.7% | - | - | 20.41 | -6.67 | - | - | 40.0% | 48.9% |
2 / 2 models
| Attribute | GPT-5 OpenAI | GPT-5 Nano OpenAI |
|---|---|---|
| Description | OpenAI's August 2025 unified frontier model that auto-routes between a fast model and a deeper "thinking" variant. | GPT-5 nano is an AI model from OpenAI. |
| Family | GPT 5 | GPT |
| Params | Undisclosed (closed) | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 7 Aug 2025 | 7 Aug 2025 |
| Context | 400,000 | 400,000 |
| Input $/1M | $1.25 | $0.05 |
| Output $/1M | $10.00 | $0.40 |
| Cache read $/1M | $0.125 | $0.005 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image, file |
| Providers | openai | - |
| Publisher | OpenAI | OpenAI |
| Reported scores | SWE-bench74.9% (Verified) GPQA Diamond85.4% (AA) Humanity's Last Exam (HLE)28.5% (AA) IFBench73.1% (AA) |
FAQ
- Is GPT-5 or GPT-5 Nano better?
- Across the 28 benchmarks both models report on Sophon, GPT-5 leads on 24 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do GPT-5 and GPT-5 Nano compare on GPQA Diamond?
- GPT-5 scores 85.4% and GPT-5 Nano scores 67.6% on GPQA Diamond.
- Which is cheaper, GPT-5 or GPT-5 Nano?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $10.00 for GPT-5 - about 25.0x.
- When were GPT-5 and GPT-5 Nano released?
- GPT-5 was released 7 Aug 2025 by OpenAI. GPT-5 Nano was released 7 Aug 2025 by OpenAI.
Other head-to-heads
56GPT-4.1 Mini vs GPT-541 shared evalsGPT-5 Mini vs GPT-5 Nano38 shared evalsGPT-5 vs GPT-5 Mini36 shared evalsClaude Sonnet 4.5 vs GPT-531 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 shared evalsGPT-4.1 vs GPT-528 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 4 Sonnet vs GPT-525 shared evalsClaude 4 Sonnet vs GPT-5 Nano25 shared evalsGemini 2.5 Pro vs GPT-524 shared evalsGemini 2.5 Pro vs GPT-5 Nano24 shared evalsGPT-5 Nano vs Grok 4.1 Fast24 shared evalsGPT-5 vs GPT-5.223 shared evalsClaude Opus 4.5 vs GPT-523 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 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 evalsGPT-4.1 Nano vs GPT-521 shared evalsClaude Fable 5 vs GPT-5 Nano21 shared evalsGLM 5.1 vs GPT-5 Nano21 shared evalsGPT-5 vs Grok 4.1 Fast20 shared evalsGPT-4.1 vs GPT-5 Nano20 shared evalsClaude Sonnet 4.6 vs GPT-5 Nano20 shared evalsGPT-5.4 Mini vs GPT-5 Nano20 shared evalsGemini 3.1 Pro Preview vs GPT-519 shared evalsClaude Opus 4.6 vs GPT-519 shared evalsGPT-5 vs GPT-5.419 shared evalsDeepSeek V3.2 vs GPT-519 shared evalsGPT-4o vs GPT-519 shared evalsGPT-5 Nano vs Qwen3.6 Plus19 shared evalsGPT-5 vs GPT-5.518 shared evalsGPT-5 vs Kimi K2.518 shared evalsGPT-4o vs GPT-5 Nano18 shared evalsClaude Opus 4.8 vs GPT-517 shared evalsClaude Opus 4.7 vs GPT-517 shared evalsGPT-5 vs gpt-oss-120b17 shared evalsGLM 4.7 vs GPT-517 shared evalsClaude Fable 5 vs GPT-516 shared evalsGPT-4o-mini vs GPT-516 shared evalsClaude Sonnet 4.6 vs GPT-516 shared evalsGLM 5.1 vs GPT-516 shared evalsGPT-5 vs GPT-5.4 Mini16 shared evalsGPT-4o-mini vs GPT-5 Nano16 shared evalsGPT-5 vs Qwen3.6 Plus15 shared evalsGPT-5 vs GPT-6 Astra12 shared evalsGPT-5 Nano vs GPT-6 Astra10 shared evals
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