Claude 3.5 Sonnet vs Gemini 3.1 Pro Preview
Head to head on 13 shared benchmarks, with price, context window, and release dates.
Benchmark scores
65evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 64.5% | 1491elo | 68.2 | 36.9% | 94.1% | 46.4% | 82.4% | 76.5% | 79.1% | 85.4% | 69.4% | 58.7% | 72.9% | - | - | - | - | 76.8% | - | 12.3% | 26.5% | 2 | 19.0% | 73.1% | 22.8% | - | 1132elo | 43.0% | 42.5% | 16.7% | 1314elo | 93.2% | 15.1% | - | 77.1% | 84.4% | - | 0.0% | 78.5% | 91.0% | 84.0% | - | - | 86.3% | 59.1% | 76.1% | - | 76.2% | 26.0% | - | 83.2% | 72.7% | - | - | - | 54.2% | 70.7% | 53.8% | 79.4 | - | 33.4% | 56.1% | 32.0% | - | 95.6% | 59.5% |
| Claude 3.5 Sonnet Anthropic | 53.6% | 1451elo | 58.4 | 2.1% | 55.3% | 4.1% | 63.7% | 65.6% | 69.2% | 56.4% | 64.1% | 36.6% | 70.2% | 51.6% | 15.7% | 3.3% | 52.4% | - | 24.2% | - | - | - | - | - | - | 28.0% | - | - | - | - | - | - | - | 96.4 | - | - | 0.0% | - | - | - | - | 38.1% | 77.1% | - | - | - | 77.2% | - | - | 0.0% | - | - | 51.3% | 25.3% | 63.4% | - | - | - | - | 0.98 | - | - | - | 62.6% | - | 42.7% |
2 / 2 models
| Attribute | Claude 3.5 Sonnet Anthropic | Gemini 3.1 Pro Preview Google (Alphabet Inc.) |
|---|---|---|
| Description | Claude Sonnet 3.5 is an AI model from Anthropic. | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). |
| Family | Claude | Gemini |
| Params | - | - |
| Open weights | closed | - |
| License | proprietary | - |
| Released | 22 Oct 2024 | 19 Feb 2026 |
| Context | 200,000 | 1,048,576 |
| Input $/1M | $3.00 | $2.00 |
| Output $/1M | $15.00 | $12.00 |
| Cache read $/1M | - | $0.200 |
| Cache write $/1M | - | $0.375 |
| Speed | 0 tok/s | 132 tok/s |
| Latency | 0.00 s | 16.61 s |
| Modalities | text, image | audio, file, image, text, video |
| Providers | - | - |
| Publisher | Anthropic | Google (Alphabet Inc.) |
| Reported scores | MortgageTax64.1% Traveling Salesman0.98 (3 samples) SWE-bench Verified63.4% (SWE-bench) SWE-bench Lite51.3% (SWE-bench) SWE-bench Multimodal25.3% (SWE-bench) |
FAQ
- Is Claude 3.5 Sonnet or Gemini 3.1 Pro Preview better?
- Across the 13 benchmarks both models report on Sophon, Gemini 3.1 Pro Preview leads on 13 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude 3.5 Sonnet and Gemini 3.1 Pro Preview compare on GPQA Diamond?
- Claude 3.5 Sonnet scores 55.3% and Gemini 3.1 Pro Preview scores 94.1% on GPQA Diamond.
- Which is cheaper, Claude 3.5 Sonnet 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 3.5 Sonnet - about 1.3x.
- When were Claude 3.5 Sonnet and Gemini 3.1 Pro Preview released?
- Claude 3.5 Sonnet was released 22 Oct 2024 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 evalsGemini 3.1 Pro Preview vs GPT-5.434 shared evalsGemini 3.1 Pro Preview vs GLM 5.132 shared evalsClaude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 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-5.229 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 evalsGemini 3.1 Pro Preview vs Grok 4.1 Fast25 shared evalsDeepSeek V3.2 vs Gemini 3.1 Pro Preview24 shared evalsClaude 4 Sonnet vs Gemini 3.1 Pro Preview23 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsClaude 3.5 Sonnet vs GPT-4o22 shared evalsGemini 3.1 Pro Preview vs GLM 4.721 shared evalsClaude 3.5 Sonnet vs Claude 4 Sonnet21 shared evalsClaude 3.5 Sonnet vs Gemini 2.5 Pro21 shared evalsGemini 2.5 Pro vs Gemini 3.1 Pro Preview20 shared evalsClaude 3.5 Sonnet vs Claude Sonnet 4.519 shared evalsClaude 3.5 Sonnet vs GPT-5 Mini19 shared evalsGemini 3.1 Pro Preview vs GPT-519 shared evalsClaude 3.5 Sonnet vs GPT-4o-mini19 shared evalsGemini 3.1 Pro Preview vs gpt-oss-120b18 shared evalsClaude 3.5 Sonnet vs GPT-4.118 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Mini17 shared evalsClaude 3.5 Sonnet vs GPT-517 shared evalsClaude 3.5 Sonnet vs GPT-5 Nano17 shared evalsClaude 3.5 Sonnet vs GPT-5.217 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.517 shared evalsClaude 3.5 Sonnet vs DeepSeek V3.217 shared evalsGemini 3.1 Pro Preview vs GPT-6 Astra16 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Nano16 shared evalsClaude 3.5 Sonnet vs gpt-oss-120b16 shared evalsClaude 3.5 Sonnet vs Kimi K2.515 shared evalsClaude 3.5 Sonnet vs Grok 4.1 Fast15 shared evalsClaude 3.5 Sonnet vs GLM 4.715 shared evalsClaude 3.5 Sonnet vs GPT-5.514 shared evalsGemini 3.1 Pro Preview vs GPT-4o14 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.614 shared evalsGemini 3.1 Pro Preview vs GPT-4.113 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.813 shared evalsClaude 3.5 Sonnet vs GPT-5.413 shared evalsClaude 3.5 Sonnet vs GLM 5.113 shared evalsClaude 3.5 Sonnet vs Claude Sonnet 4.613 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.713 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 3.5 Sonnet vs Claude Fable 512 shared evalsClaude 3.5 Sonnet vs Qwen3.6 Plus11 shared evalsClaude 3.5 Sonnet vs GPT-6 Astra6 shared evals
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