Gemini 2.5 Pro vs GPT-5 Nano
Head to head on 24 shared benchmarks, with price, context window, and release dates.
Benchmark scores
58evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 2.5 Pro Google (Alphabet Inc.) | 87.7% | 45.2% | 1421elo | 58.8 | 14.1% | 84.4% | 22.5% | 48.7% | 77.9% | 86.7% | 81.0% | 65.9% | 80.1% | 50.6% | 73.6% | 86.2% | 68.9% | 41.9% | 46.3% | 53.6% | 72.9% | 26.5% | 53.3% | 54.1% | - | 83.1% | 88.7% | 50.4% | - | - | - | 60.8% | 15.9% | - | - | - | - | - | - | - | - | - | - | 96.7% | - | - | 70.0% | - | - | - | 55.6 | - | - | - | - | 0.4% | - | - | 59.6% |
| GPT-5 Nano OpenAI | 83.7% | 10.0% | 705elo | 28 | 8.3% | 67.6% | 9.5% | 67.6% | 52.8% | 62.4% | 55.7% | 46.8% | 78.9% | 30.4% | 72.9% | 78.0% | 53.6% | 30.4% | 36.6% | 34.8% | 67.4% | 12.1% | 40.0% | 36.5% | 0.0% | - | - | - | 0.25 | 0.21 | 6.7% | - | - | 78.2% | 1.18 | 100.0% | 43.4% | 68.4% | 40.3% | 1.38 | 1.38 | 100.0% | 100.0% | - | 26.7% | 100.0% | - | 0.0% | 0.0% | 12.0% | - | 1.72 | 29.7% | 20.41 | -6.67 | - | 82.0% | 82.0% | 48.9% |
2 / 2 models
| Attribute | Gemini 2.5 Pro Google (Alphabet Inc.) | GPT-5 Nano OpenAI |
|---|---|---|
| Description | Gemini 2.5 Pro is an AI model from Google (Alphabet Inc.). | GPT-5 nano is an AI model from OpenAI. |
| Family | Gemini | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 5 Jun 2025 | 7 Aug 2025 |
| Context | 1,048,576 | 400,000 |
| Input $/1M | $1.25 | $0.05 |
| Output $/1M | $10.00 | $0.40 |
| Cache read $/1M | $0.125 | $0.005 |
| Cache write $/1M | $0.375 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file, audio, video | text, image, file |
| Providers | - | - |
| Publisher | Google (Alphabet Inc.) | OpenAI |
| Reported scores |
FAQ
- Is Gemini 2.5 Pro or GPT-5 Nano better?
- Across the 24 benchmarks both models report on Sophon, Gemini 2.5 Pro leads on 23 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Gemini 2.5 Pro and GPT-5 Nano compare on GPQA Diamond?
- Gemini 2.5 Pro scores 84.4% and GPT-5 Nano scores 67.6% on GPQA Diamond.
- Which is cheaper, Gemini 2.5 Pro or GPT-5 Nano?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $10.00 for Gemini 2.5 Pro - about 25.0x.
- When were Gemini 2.5 Pro and GPT-5 Nano released?
- Gemini 2.5 Pro was released 5 Jun 2025 by Google (Alphabet Inc.). GPT-5 Nano was released 7 Aug 2025 by OpenAI.
Other head-to-heads
56GPT-5 Mini vs GPT-5 Nano38 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 shared evalsGPT-5 vs GPT-5 Nano28 shared evalsGPT-4.1 Mini vs GPT-5 Nano26 shared evalsClaude Sonnet 4.5 vs Gemini 2.5 Pro26 shared evalsGemini 2.5 Pro vs GPT-5 Mini26 shared evalsGPT-5 Nano vs GPT-5.226 shared evalsClaude Opus 4.5 vs GPT-5 Nano26 shared evalsClaude 4 Sonnet vs GPT-5 Nano25 shared evalsClaude 4 Sonnet vs Gemini 2.5 Pro25 shared evalsGemini 2.5 Pro vs GPT-524 shared evalsGPT-5 Nano vs Grok 4.1 Fast24 shared evalsGemini 2.5 Pro vs GPT-5.224 shared evalsClaude Opus 4.5 vs Gemini 2.5 Pro24 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 2.5 Pro vs GPT-5.522 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 evalsGemini 2.5 Pro vs GPT-4o22 shared evalsGemini 2.5 Pro vs Grok 4.1 Fast22 shared evalsClaude Fable 5 vs GPT-5 Nano21 shared evalsGLM 5.1 vs GPT-5 Nano21 shared evalsClaude Opus 4.6 vs Gemini 2.5 Pro21 shared evalsGemini 2.5 Pro vs Kimi K2.521 shared evalsDeepSeek V3.2 vs Gemini 2.5 Pro21 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 2.5 Pro vs Gemini 3.1 Pro Preview20 shared evalsClaude Opus 4.8 vs Gemini 2.5 Pro20 shared evalsGemini 2.5 Pro vs GPT-5.420 shared evalsClaude Opus 4.7 vs Gemini 2.5 Pro20 shared evalsGemini 2.5 Pro vs GLM 4.720 shared evalsGemini 2.5 Pro vs GPT-4.1 Mini19 shared evalsGPT-5 Nano vs Qwen3.6 Plus19 shared evalsClaude Fable 5 vs Gemini 2.5 Pro19 shared evalsGemini 2.5 Pro vs GPT-4.119 shared evalsGemini 2.5 Pro vs GPT-4o-mini19 shared evalsClaude Sonnet 4.6 vs Gemini 2.5 Pro19 shared evalsGemini 2.5 Pro vs GLM 5.119 shared evalsGemini 2.5 Pro vs gpt-oss-120b19 shared evalsGPT-4o vs GPT-5 Nano18 shared evalsGemini 2.5 Pro vs Qwen3.6 Plus18 shared evalsGemini 2.5 Pro vs GPT-4.1 Nano18 shared evalsGemini 2.5 Pro vs GPT-5.4 Mini18 shared evalsGPT-4o-mini vs GPT-5 Nano16 shared evalsGPT-5 Nano vs GPT-6 Astra10 shared evalsGemini 2.5 Pro vs GPT-6 Astra10 shared evals
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