Gemini 2.5 Pro vs Gemini 3.1 Pro Preview
Head to head on 20 shared benchmarks, with price, context window, and release dates.
Benchmark scores
61evals · sort by any column, ⤢ to expand fullscreen
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| Gemini 2.5 Pro Google (Alphabet Inc.) | 60.8% | 1421elo | 58.8 | 14.1% | 84.4% | 22.5% | 48.7% | 77.9% | 86.7% | 81.0% | 65.9% | 50.6% | 73.6% | 68.9% | 41.9% | 46.3% | 72.9% | 26.5% | 0.4% | 54.1% | 83.1% | 88.7% | 87.7% | - | 50.4% | - | - | - | - | - | - | 45.2% | 15.9% | - | - | - | - | - | - | - | - | - | - | - | - | 80.1% | 96.7% | - | 86.2% | 70.0% | - | - | - | 55.6 | 53.6% | - | - | - | - | - | 53.3% | 59.6% |
| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 64.5% | 1491elo | 68.2 | 36.9% | 94.1% | 47.0% | 77.1% | 82.4% | 76.5% | 79.1% | 85.4% | 59.1% | 76.1% | 69.4% | 48.7% | 58.7% | 72.9% | 53.8% | 32.0% | 95.6% | - | - | - | 76.8% | - | 12.3% | 26.5% | 2 | 20.0% | 73.1% | 22.8% | - | - | 1142elo | 43.0% | 42.5% | 16.7% | 1314elo | 93.2% | 15.1% | 84.4% | 0.0% | 78.5% | 91.0% | 84.0% | - | - | 86.3% | - | - | 76.2% | 26.0% | 72.7% | - | - | 54.2% | 70.7% | 79.4 | 33.4% | 56.1% | - | 58.7% |
2 / 2 models
| Attribute | Gemini 2.5 Pro Google (Alphabet Inc.) | Gemini 3.1 Pro Preview Google (Alphabet Inc.) |
|---|---|---|
| Description | Gemini 2.5 Pro is an AI model from Google (Alphabet Inc.). | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). |
| Family | Gemini | Gemini |
| Params | - | - |
| Open weights | closed | - |
| License | proprietary | - |
| Released | 5 Jun 2025 | 19 Feb 2026 |
| Context | 1,048,576 | 1,048,576 |
| Input $/1M | $1.25 | $2.00 |
| Output $/1M | $10.00 | $12.00 |
| Cache read $/1M | $0.125 | $0.200 |
| Cache write $/1M | $0.375 | $0.375 |
| Speed | 0 tok/s | 123 tok/s |
| Latency | 0.00 s | 16.70 s |
| Modalities | text, image, file, audio, video | audio, file, image, text, video |
| Providers | - | - |
| Publisher | Google (Alphabet Inc.) | Google (Alphabet Inc.) |
| Reported scores | GPQA Diamond94.1% (AA) Humanity's Last Exam (HLE)47.0% (AA) IFBench77.1% (AA) τ²-bench (Tau²-bench)95.6% (AA) Terminal-Bench (Hard)53.8% (AA) |
FAQ
- Is Gemini 2.5 Pro or Gemini 3.1 Pro Preview better?
- Across the 20 benchmarks both models report on Sophon, Gemini 3.1 Pro Preview leads on 17 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Gemini 2.5 Pro and Gemini 3.1 Pro Preview compare on GPQA Diamond?
- Gemini 2.5 Pro scores 84.4% and Gemini 3.1 Pro Preview scores 94.1% on GPQA Diamond.
- Which is cheaper, Gemini 2.5 Pro or Gemini 3.1 Pro Preview?
- Gemini 2.5 Pro is cheaper at $10.00 per million output tokens against $12.00 for Gemini 3.1 Pro Preview - about 1.2x.
- When were Gemini 2.5 Pro and Gemini 3.1 Pro Preview released?
- Gemini 2.5 Pro was released 5 Jun 2025 by Google (Alphabet Inc.). Gemini 3.1 Pro Preview was released 19 Feb 2026 by Google (Alphabet Inc.).
Other head-to-heads
56Gemini 3.1 Pro Preview vs GPT-5.541 shared evalsClaude Opus 4.8 vs Gemini 3.1 Pro Preview38 shared evalsClaude Fable 5 vs Gemini 3.1 Pro Preview36 shared evalsGemini 3.1 Pro Preview vs GPT-5.434 shared evalsClaude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 shared evalsGemini 3.1 Pro Preview vs GLM 5.132 shared evalsClaude Opus 4.6 vs Gemini 3.1 Pro Preview31 shared evalsClaude Opus 4.7 vs Gemini 3.1 Pro Preview31 shared evalsGemini 3.1 Pro Preview vs Kimi K2.530 shared evalsGemini 3.1 Pro Preview vs GPT-5.4 Mini30 shared evalsGemini 3.1 Pro Preview vs GPT-5.229 shared evalsClaude Opus 4.5 vs Gemini 3.1 Pro Preview28 shared evalsClaude Sonnet 4.5 vs Gemini 3.1 Pro Preview27 shared evalsGemini 3.1 Pro Preview vs GPT-5 Mini27 shared evalsGemini 3.1 Pro Preview vs Qwen3.6 Plus27 shared evalsClaude Sonnet 4.5 vs Gemini 2.5 Pro26 shared evalsGemini 2.5 Pro vs GPT-5 Mini26 shared evalsGemini 3.1 Pro Preview vs Grok 4.1 Fast25 shared evalsClaude 4 Sonnet vs Gemini 2.5 Pro25 shared evalsGemini 2.5 Pro vs GPT-524 shared evalsGemini 2.5 Pro vs GPT-5 Nano24 shared evalsDeepSeek V3.2 vs Gemini 3.1 Pro Preview24 shared evalsGemini 2.5 Pro vs GPT-5.224 shared evalsClaude Opus 4.5 vs Gemini 2.5 Pro24 shared evalsClaude 4 Sonnet vs Gemini 3.1 Pro Preview23 shared evalsGemini 2.5 Pro vs GPT-5.522 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsGemini 2.5 Pro vs GPT-4o22 shared evalsGemini 2.5 Pro vs Grok 4.1 Fast22 shared evalsGemini 3.1 Pro Preview vs GLM 4.721 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 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 evalsGemini 3.1 Pro Preview vs GPT-519 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 evalsGemini 3.1 Pro Preview vs gpt-oss-120b18 shared evalsGemini 2.5 Pro vs GPT-4.1 Nano18 shared evalsGemini 2.5 Pro vs Qwen3.6 Plus18 shared evalsGemini 2.5 Pro vs GPT-5.4 Mini18 shared evalsGemini 3.1 Pro Preview vs GPT-6 Astra16 shared evalsGemini 3.1 Pro Preview vs GPT-4o14 shared evalsGemini 3.1 Pro Preview vs GPT-4.113 shared evalsGemini 3.1 Pro Preview vs GPT-4.1 Mini12 shared evalsGemini 3.1 Pro Preview vs GPT-4o-mini12 shared evalsGemini 3.1 Pro Preview vs GPT-4.1 Nano12 shared evalsGemini 2.5 Pro vs GPT-6 Astra10 shared evals
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