GPT-4.1 vs Grok 4.1 Fast
Head to head on 13 shared benchmarks, with price, context window, and release dates.
Benchmark scores
57evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grok 4.1 Fast xAI | 89.3% | 66.0% | 1327elo | 85.3% | 19.3% | 52.7% | 82.2% | 85.4% | 42.6% | 44.2% | 73.1% | 24.2% | 93.3% | 62.0% | - | - | - | - | - | - | - | - | - | 40.1 | - | - | 11.8 | 35.0% | 80.2% | 64.7% | 69.6% | 52.2% | 28.2% | 74.3% | 83.7% | 80.2% | - | - | - | - | 60.8% | - | - | 28.1% | 100.0% | - | 78.7% | - | 4.0% | 31.3% | - | - | - | - | 1.2% | - | - | 58.3% |
| GPT-4.1 OpenAI | 34.7% | 63.1% | 1420elo | 66.6% | 4.2% | 43.0% | 45.7% | 80.6% | 65.9% | 38.1% | 75.1% | 13.6% | 47.1% | - | 0.0% | 52.4% | 43.7% | 26.7% | 61.5% | 1.64 | 83.7% | 1.55 | 12.4% | - | 5.5% | 60.9% | - | - | - | - | - | - | - | - | - | - | 70.8% | 0.49 | 0.49 | 91.3% | - | 32.1% | 32.1% | - | - | 69.4% | - | 50.5% | - | - | 8.57 | 31.1% | 39.6% | 10.0% | - | 92.0% | 92.0% | 48.0% |
2 / 2 models
| Attribute | GPT-4.1 OpenAI | Grok 4.1 Fast xAI |
|---|---|---|
| Description | GPT-4.1 is an AI model from OpenAI. | Grok 4.1 Fast is an AI model from xAI. |
| Family | GPT | Grok |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 14 Apr 2025 | 19 Nov 2025 |
| Context | 1,047,576 | - |
| Input $/1M | $2.00 | - |
| Output $/1M | $8.00 | - |
| Cache read $/1M | $0.500 | - |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | image, text, file | text |
| Providers | - | - |
| Publisher | OpenAI | xAI |
| Reported scores | ScholarSearch8.57 Social Sciences & Humanities (%) GPQA Diamond66.6% (AA) Humanity's Last Exam (HLE)4.2% (AA) IFBench43.0% (AA) | Infraresolutionbench80.2% (150 samples) Agent Diff Bench62.0% (179 samples) Medpt100.0% (15 samples) Hanabi11.8 (15 samples) SciCode44.2% (AA) |
FAQ
- Is GPT-4.1 or Grok 4.1 Fast better?
- Across the 13 benchmarks both models report on Sophon, Grok 4.1 Fast leads on 10 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do GPT-4.1 and Grok 4.1 Fast compare on GPQA Diamond?
- GPT-4.1 scores 66.6% and Grok 4.1 Fast scores 85.3% on GPQA Diamond.
- When were GPT-4.1 and Grok 4.1 Fast released?
- GPT-4.1 was released 14 Apr 2025 by OpenAI. Grok 4.1 Fast was released 19 Nov 2025 by xAI.
Other head-to-heads
56GPT-5.2 vs Grok 4.1 Fast30 shared evalsClaude Opus 4.5 vs Grok 4.1 Fast29 shared evalsGPT-4.1 vs GPT-4.1 Mini28 shared evalsClaude Sonnet 4.5 vs Grok 4.1 Fast28 shared evalsGPT-4.1 vs GPT-528 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 evalsGemini 3.1 Pro Preview 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 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 Fable 5 vs Grok 4.1 Fast23 shared evalsGLM 5.1 vs Grok 4.1 Fast23 shared evalsGPT-4.1 vs GPT-5 Mini22 shared evalsGPT-4.1 vs GPT-4.1 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 evalsGrok 4.1 Fast vs Qwen3.6 Plus21 shared evalsGPT-5 vs Grok 4.1 Fast20 shared evalsGPT-4.1 vs GPT-5 Nano20 shared evalsgpt-oss-120b vs Grok 4.1 Fast20 shared evalsClaude Sonnet 4.5 vs GPT-4.119 shared evalsClaude 4 Sonnet vs GPT-4.119 shared evalsGemini 2.5 Pro vs GPT-4.119 shared evalsGPT-4.1 vs GPT-4o19 shared evalsClaude Opus 4.5 vs GPT-4.116 shared evalsGPT-4.1 vs GPT-4o-mini16 shared evalsGPT-4.1 vs gpt-oss-120b16 shared evalsGPT-4o vs Grok 4.1 Fast16 shared evalsGPT-4.1 vs GPT-5.215 shared evalsDeepSeek V3.2 vs GPT-4.115 shared evalsGPT-4o-mini vs Grok 4.1 Fast15 shared evalsGPT-4.1 Mini vs Grok 4.1 Fast14 shared evalsGPT-4.1 Nano vs Grok 4.1 Fast14 shared evalsGemini 3.1 Pro Preview vs GPT-4.113 shared evalsClaude Opus 4.6 vs GPT-4.113 shared evalsGPT-4.1 vs GPT-5.413 shared evalsGLM 4.7 vs GPT-4.113 shared evalsGPT-4.1 vs GPT-5.512 shared evalsGPT-4.1 vs Kimi K2.512 shared evalsClaude Sonnet 4.6 vs GPT-4.112 shared evalsClaude Opus 4.8 vs GPT-4.111 shared evalsGLM 5.1 vs GPT-4.111 shared evalsClaude Opus 4.7 vs GPT-4.111 shared evalsGPT-4.1 vs GPT-5.4 Mini11 shared evalsClaude Fable 5 vs GPT-4.110 shared evalsGPT-4.1 vs Qwen3.6 Plus10 shared evalsGPT-6 Astra vs Grok 4.1 Fast10 shared evalsGPT-4.1 vs GPT-6 Astra5 shared evals
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