Gemini 3.1 Pro Preview vs GPT-5 Nano
Head to head on 22 shared benchmarks, with price, context window, and release dates.
Benchmark scores
75evals · sort by any column, ⤢ to expand fullscreen
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| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 1489elo | 68.2 | 36.9% | 94.1% | 47.0% | 77.1% | 82.4% | 76.5% | 78.5% | 79.1% | 85.4% | 91.0% | 84.0% | 59.1% | 76.1% | 69.4% | 26.0% | 48.7% | 58.9% | 72.9% | 53.8% | 95.6% | - | - | 76.8% | 12.3% | - | - | 26.5% | - | 2 | 64.5% | 22.0% | 73.1% | 22.8% | - | 1142elo | 43.0% | - | 42.5% | - | 16.7% | 1314elo | 93.2% | 15.1% | - | 84.4% | 0.0% | - | - | - | - | - | 86.3% | - | - | - | - | 76.2% | - | 72.7% | - | - | 54.2% | 70.7% | 79.4 | - | 41.9% | 56.1% | - | - | 32.0% | - | - | - | 58.9% |
| GPT-5 Nano OpenAI | 703elo | 28 | 8.3% | 42.8% | 4.0% | 32.5% | 52.8% | 62.4% | 43.4% | 55.7% | 46.8% | 68.4% | 40.3% | 30.4% | 72.9% | 53.6% | 12.0% | 30.4% | 29.1% | 67.4% | 6.8% | 25.7% | 0.0% | 27.3% | - | - | 0.25 | 0.21 | - | 6.7% | - | - | - | - | - | 10.0% | - | - | 78.2% | - | 1.18 | - | - | - | - | 100.0% | - | - | 47.0% | 1.38 | 1.38 | 100.0% | 100.0% | - | 26.7% | 55.6% | 100.0% | 0.0% | - | 0.0% | - | 1.72 | 34.8% | - | - | - | 29.7% | - | - | 20.41 | -6.67 | - | 82.0% | 82.0% | 40.0% | 43.7% |
2 / 2 models
| Attribute | Gemini 3.1 Pro Preview Google (Alphabet Inc.) | GPT-5 Nano OpenAI |
|---|---|---|
| Description | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). | GPT-5 nano is an AI model from OpenAI. |
| Family | Gemini | GPT |
| Params | - | - |
| Open weights | - | closed |
| License | - | proprietary |
| Released | 19 Feb 2026 | 7 Aug 2025 |
| Context | 1,048,576 | 400,000 |
| Input $/1M | $2.00 | $0.05 |
| Output $/1M | $12.00 | $0.40 |
| Cache read $/1M | $0.200 | $0.005 |
| Cache write $/1M | $0.375 | - |
| Speed | 122 tok/s | 0 tok/s |
| Latency | 20.68 s | 0.00 s |
| Modalities | audio, file, image, text, video | text, image, file |
| Providers | - | - |
| Publisher | Google (Alphabet Inc.) | OpenAI |
| Reported scores | GPQA Diamond94.1% (AA) Humanity's Last Exam (HLE)47.0% (AA) IFBench77.1% (AA) SciCode58.9% (AA) τ²-bench (Tau²-bench)95.6% (AA) |
FAQ
- Is Gemini 3.1 Pro Preview or GPT-5 Nano better?
- Across the 22 benchmarks both models report on Sophon, Gemini 3.1 Pro Preview leads on 22 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Gemini 3.1 Pro Preview and GPT-5 Nano compare on GPQA Diamond?
- Gemini 3.1 Pro Preview scores 94.1% and GPT-5 Nano scores 42.8% on GPQA Diamond.
- Which is cheaper, Gemini 3.1 Pro Preview or GPT-5 Nano?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $12.00 for Gemini 3.1 Pro Preview - about 30.0x.
- When were Gemini 3.1 Pro Preview and GPT-5 Nano released?
- Gemini 3.1 Pro Preview was released 19 Feb 2026 by Google (Alphabet Inc.). GPT-5 Nano was released 7 Aug 2025 by OpenAI.
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