Claude Sonnet 4.5 vs Gemini 3.1 Pro Preview
Head to head on 27 shared benchmarks, with price, context window, and release dates.
Benchmark scores
103evals · sort by any column, ⤢ to expand fullscreen
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| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 64.5% | 1491elo | 68.2 | 36.9% | 93.2% | 94.1% | 47.0% | 77.1% | 84.4% | 82.4% | 76.5% | 78.5% | 79.1% | 85.4% | 91.0% | 84.0% | 59.1% | 76.1% | 69.4% | 76.2% | 26.0% | 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 | - | 15.1% | - | - | - | - | - | - | 0.0% | - | - | - | - | - | - | 86.3% | - | - | - | - | - | - | - | - | - | - | - | - | - | 72.7% | - | - | - | - | - | - | 54.2% | - | - | - | - | 70.7% | 79.4 | - | 33.4% | 56.1% | - | - | 58.7% |
| Claude Sonnet 4.5 Anthropic | 60.8% | 1678elo | 71.4 | 15.2% | 83.9% | 83.4% | 17.8% | 57.3% | 83.8% | 70.7% | 80.4% | 57.0% | 53.4% | 76.5% | 79.3% | 77.6% | 40.6% | 84.5% | 64.0% | 62.9% | 19.0% | 32.9% | 45.7% | 73.3% | 35.6% | 22.6% | 78.1% | 0.0% | 0.0% | 88.0% | 100 | 0.0% | - | 0.0% | 0.0% | - | 5.0% | - | 0.0% | - | 0.0% | 0.0% | - | - | - | 0.0% | 0.0% | - | 0.0% | 0.0% | - | - | 0.0% | - | - | 0.0% | - | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 87.5% | - | 0.0% | 0.0% | 71.4% | 0.75 | 0.75 | 0.0% | - | 0 | 0 | 87.5% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | - | 0 | 0.0% | 0.0% | 77.2% | 67.0% | 74.8% | - | 0.0% | 0 | 0 | 50.34 | - | - | 0 | - | - | 0.0% | 1.49 | 29.2% |
2 / 2 models
| Attribute | Claude Sonnet 4.5 Anthropic | Gemini 3.1 Pro Preview Google (Alphabet Inc.) |
|---|---|---|
| Description | anthropic/claude-sonnet-4.5 is an AI model. | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). |
| Family | Claude | Gemini |
| Params | Undisclosed (closed) | - |
| Open weights | closed | - |
| License | proprietary | - |
| Released | 29 Sep 2025 | 19 Feb 2026 |
| Context | 1,000,000 | 1,048,576 |
| Input $/1M | $3.00 | $2.00 |
| Output $/1M | $15.00 | $12.00 |
| Cache read $/1M | $0.300 | $0.200 |
| Cache write $/1M | $3.750 | $0.375 |
| Speed | 0 tok/s | 123 tok/s |
| Latency | 0.00 s | 16.70 s |
| Modalities | text, image, file | audio, file, image, text, video |
| Providers | anthropic, aws-bedrock, vertex-ai | - |
| Publisher | Anthropic | Google (Alphabet Inc.) |
| Reported scores | TaxEval v273.3% LiveBench - Math79.3% (LiveBench) LiveBench - Coding80.4% (LiveBench) LiveBench - Language76.5% (LiveBench) LiveBench - Data Analysis57.0% (LiveBench) | 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 Claude Sonnet 4.5 or Gemini 3.1 Pro Preview better?
- Across the 27 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 Claude Sonnet 4.5 and Gemini 3.1 Pro Preview compare on GPQA Diamond?
- Claude Sonnet 4.5 scores 83.4% and Gemini 3.1 Pro Preview scores 94.1% on GPQA Diamond.
- Which is cheaper, Claude Sonnet 4.5 or Gemini 3.1 Pro Preview?
- Gemini 3.1 Pro Preview is cheaper at $12.00 per million output tokens against $15.00 for Claude Sonnet 4.5 - about 1.3x.
- When were Claude Sonnet 4.5 and Gemini 3.1 Pro Preview released?
- Claude Sonnet 4.5 was released 29 Sep 2025 by Anthropic. 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 evalsClaude Sonnet 4.5 vs GPT-4.1 Mini35 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.534 shared evalsGemini 3.1 Pro Preview vs GPT-5.434 shared evalsClaude Sonnet 4.5 vs GPT-5.232 shared evalsClaude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 shared evalsGemini 3.1 Pro Preview vs GLM 5.132 shared evalsClaude Sonnet 4.5 vs GPT-5 Mini31 shared evalsClaude Sonnet 4.5 vs GPT-531 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 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 4 Sonnet vs Claude Sonnet 4.528 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.528 shared evalsClaude Sonnet 4.5 vs Kimi K2.528 shared evalsClaude Sonnet 4.5 vs Grok 4.1 Fast28 shared evalsClaude Opus 4.5 vs Gemini 3.1 Pro Preview28 shared evalsClaude Sonnet 4.5 vs DeepSeek V3.227 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 GPT-5.526 shared evalsClaude Sonnet 4.5 vs GPT-5.426 shared evalsClaude Sonnet 4.5 vs Gemini 2.5 Pro26 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.525 shared evalsClaude Sonnet 4.5 vs GLM 4.725 shared evalsGemini 3.1 Pro Preview vs Grok 4.1 Fast25 shared evalsClaude Fable 5 vs Claude Sonnet 4.524 shared evalsClaude Sonnet 4.5 vs Claude Sonnet 4.624 shared evalsClaude Opus 4.7 vs Claude Sonnet 4.524 shared evalsDeepSeek V3.2 vs Gemini 3.1 Pro Preview24 shared evalsClaude Sonnet 4.5 vs GLM 5.123 shared evalsClaude Sonnet 4.5 vs gpt-oss-120b23 shared evalsClaude Sonnet 4.5 vs GPT-5.4 Mini23 shared evalsClaude 4 Sonnet vs Gemini 3.1 Pro Preview23 shared evalsClaude Sonnet 4.5 vs Qwen3.6 Plus22 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsClaude Sonnet 4.5 vs GPT-4o21 shared evalsGemini 3.1 Pro Preview vs GLM 4.721 shared evalsGemini 2.5 Pro vs Gemini 3.1 Pro Preview20 shared evalsClaude Sonnet 4.5 vs GPT-4.119 shared evalsGemini 3.1 Pro Preview vs GPT-519 shared evalsGemini 3.1 Pro Preview vs gpt-oss-120b18 shared evalsClaude Sonnet 4.5 vs GPT-4o-mini17 shared evalsClaude Sonnet 4.5 vs GPT-4.1 Nano16 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 evalsClaude Sonnet 4.5 vs GPT-6 Astra11 shared evals
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