Gemini 3.1 Pro Preview vs Grok 4.1 Fast
Head to head on 25 shared benchmarks, with price, context window, and release dates.
Benchmark scores
55evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 64.5% | 1491elo | 68.2 | 94.1% | 47.0% | 77.1% | 84.4% | 82.4% | 76.5% | 78.5% | 79.1% | 85.4% | 91.0% | 84.0% | 86.3% | 59.1% | 76.1% | 69.4% | 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% | 36.9% | 42.5% | 16.7% | 1314elo | 93.2% | 15.1% | - | - | 0.0% | - | - | - | 76.2% | 72.7% | 54.2% | 70.7% | 79.4 | 33.4% | 56.1% | 58.7% |
| Grok 4.1 Fast xAI | 66.0% | 1327elo | 40.1 | 85.3% | 19.3% | 52.7% | 80.2% | 64.7% | 69.6% | 52.2% | 28.2% | 74.3% | 83.7% | 80.2% | 60.8% | 28.1% | 78.7% | 42.6% | 4.0% | 31.3% | 44.2% | 73.1% | 24.2% | 1.2% | 93.3% | 62.0% | 89.3% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 11.8 | 35.0% | - | 82.2% | 100.0% | 85.4% | - | - | - | - | - | - | - | 58.3% |
2 / 2 models
| Attribute | Gemini 3.1 Pro Preview Google (Alphabet Inc.) | Grok 4.1 Fast xAI |
|---|---|---|
| Description | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). | Grok 4.1 Fast is an AI model from xAI. |
| Family | Gemini | Grok |
| Params | - | - |
| Open weights | - | closed |
| License | - | proprietary |
| Released | 19 Feb 2026 | 19 Nov 2025 |
| Context | 1,048,576 | - |
| Input $/1M | $2.00 | - |
| Output $/1M | $12.00 | - |
| Cache read $/1M | $0.200 | - |
| Cache write $/1M | $0.375 | - |
| Speed | 123 tok/s | 0 tok/s |
| Latency | 16.70 s | 0.00 s |
| Modalities | audio, file, image, text, video | text |
| Providers | - | - |
| Publisher | Google (Alphabet Inc.) | xAI |
| 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) | Infraresolutionbench80.2% (150 samples) Agent Diff Bench62.0% (179 samples) Medpt100.0% (15 samples) Hanabi11.8 (15 samples) SciCode44.2% (AA) |
FAQ
- Is Gemini 3.1 Pro Preview or Grok 4.1 Fast better?
- Across the 25 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 Grok 4.1 Fast compare on GPQA Diamond?
- Gemini 3.1 Pro Preview scores 94.1% and Grok 4.1 Fast scores 85.3% on GPQA Diamond.
- When were Gemini 3.1 Pro Preview and Grok 4.1 Fast released?
- Gemini 3.1 Pro Preview was released 19 Feb 2026 by Google (Alphabet Inc.). Grok 4.1 Fast was released 19 Nov 2025 by xAI.
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 evalsGPT-5.2 vs Grok 4.1 Fast30 shared evalsGemini 3.1 Pro Preview vs GPT-5.229 shared evalsClaude Opus 4.5 vs Grok 4.1 Fast29 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 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 evalsGPT-5 Mini vs Grok 4.1 Fast26 shared evalsDeepSeek V3.2 vs Grok 4.1 Fast26 shared evalsGPT-5.5 vs Grok 4.1 Fast25 shared evalsClaude Opus 4.6 vs Grok 4.1 Fast25 shared evalsGPT-5.4 vs Grok 4.1 Fast25 shared evalsGPT-5 Nano vs Grok 4.1 Fast24 shared evalsDeepSeek V3.2 vs Gemini 3.1 Pro Preview24 shared evalsClaude Opus 4.8 vs Grok 4.1 Fast24 shared evalsClaude 4 Sonnet vs Grok 4.1 Fast24 shared evalsGrok 4.1 Fast vs Kimi K2.524 shared evalsClaude Opus 4.7 vs Grok 4.1 Fast24 shared evalsGLM 4.7 vs Grok 4.1 Fast24 shared evalsClaude 4 Sonnet vs Gemini 3.1 Pro Preview23 shared evalsClaude Fable 5 vs Grok 4.1 Fast23 shared evalsGLM 5.1 vs Grok 4.1 Fast23 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsClaude Sonnet 4.6 vs Grok 4.1 Fast22 shared evalsGemini 2.5 Pro vs Grok 4.1 Fast22 shared evalsGPT-5.4 Mini vs Grok 4.1 Fast22 shared evalsGemini 3.1 Pro Preview vs GLM 4.721 shared evalsGrok 4.1 Fast vs Qwen3.6 Plus21 shared evalsGPT-5 vs Grok 4.1 Fast20 shared evalsGemini 2.5 Pro vs Gemini 3.1 Pro Preview20 shared evalsgpt-oss-120b vs Grok 4.1 Fast20 shared evalsGemini 3.1 Pro Preview vs GPT-519 shared evalsGemini 3.1 Pro Preview vs gpt-oss-120b18 shared evalsGemini 3.1 Pro Preview vs GPT-6 Astra16 shared evalsGPT-4o vs Grok 4.1 Fast16 shared evalsGPT-4o-mini vs Grok 4.1 Fast15 shared evalsGPT-4.1 Mini vs Grok 4.1 Fast14 shared evalsGemini 3.1 Pro Preview vs GPT-4o14 shared evalsGPT-4.1 Nano vs Grok 4.1 Fast14 shared evalsGemini 3.1 Pro Preview vs GPT-4.113 shared evalsGPT-4.1 vs Grok 4.1 Fast13 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 evalsGPT-6 Astra vs Grok 4.1 Fast10 shared evals
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