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 | 48.3% | 0.15 | 57.7% | 1623elo | 72.8 | 91.7% | 32.4% | 68.6% | 100.0% | 6.6% | 45.0% | 54.3% | 0.52 | 1.62 | 49.6% | 83.7% | 82.0% | 65.5% | 0.0% | 18.0% | 43.7% | 37.8% | 74.4% | 73.4% | 12.9% | 90.0% | 90.0% | 0.0% | 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% | - | - | 86.1% | 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% | - | 56.7% |
| GPT-5 Nano OpenAI | 27.3% | 0.25 | 10.0% | 703elo | 28 | 78.2% | 8.3% | 42.8% | 100.0% | 4.0% | 32.5% | 47.0% | 1.38 | 1.38 | 30.4% | 72.9% | 55.6% | 53.6% | 0.0% | 12.0% | 30.4% | 29.1% | 34.8% | 67.4% | 6.8% | 82.0% | 82.0% | 25.7% | - | - | 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% | 43.7% |
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 | - | $0.05 |
| Output $/1M | - | $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 |
FAQ
- Is GPT-5 or GPT-5 Nano better?
- Across the 28 benchmarks both models report on Sophon, GPT-5 leads on 23 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 68.6% and GPT-5 Nano scores 42.8% on GPQA Diamond.
- 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.
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