Claude Sonnet 4.6 vs Grok 4.1 Fast
Head to head on 22 shared benchmarks, with price, context window, and release dates.
Benchmark scores
45evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.6 Anthropic | 65.3% | 1810elo | 79.9 | 87.5% | 33.6% | 56.6% | 92.2% | 78.4% | 80.0% | 76.1% | 63.9% | 77.7% | 86.5% | 86.4% | 67.7% | 45.0% | 46.6% | 50.1% | 77.1% | 53.0% | 51.5% | 75.7% | - | 87.1% | - | 47.2% | 47.6% | 1.35 | 76.0% | 1207elo | 51.0% | 32.4% | - | - | - | - | - | - | - | - | 89.3 | 72.1% | 76.3 | 50.6% | 60.6% | 64.7% |
| 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% | 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% | 60.8% | 28.1% | 100.0% | 78.7% | 85.4% | - | - | - | - | - | 58.3% |
2 / 2 models
| Attribute | Claude Sonnet 4.6 Anthropic | Grok 4.1 Fast xAI |
|---|---|---|
| Description | Claude Sonnet 4.6 is an AI model from Anthropic. | Grok 4.1 Fast is an AI model from xAI. |
| Family | Claude | Grok |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 17 Feb 2026 | 19 Nov 2025 |
| Context | 1,000,000 | - |
| Input $/1M | $3.00 | - |
| Output $/1M | $15.00 | - |
| Cache read $/1M | $0.300 | - |
| Cache write $/1M | $3.750 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text |
| Providers | - | - |
| Publisher | Anthropic | xAI |
| Reported scores | Infraresolutionbench80.2% (150 samples) Agent Diff Bench62.0% (179 samples) Medpt100.0% (15 samples) Hanabi11.8 (15 samples) SciCode44.2% (AA) |
FAQ
- Is Claude Sonnet 4.6 or Grok 4.1 Fast better?
- Across the 22 benchmarks both models report on Sophon, Claude Sonnet 4.6 leads on 20 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Sonnet 4.6 and Grok 4.1 Fast compare on GPQA Diamond?
- Claude Sonnet 4.6 scores 87.5% and Grok 4.1 Fast scores 85.3% on GPQA Diamond.
- When were Claude Sonnet 4.6 and Grok 4.1 Fast released?
- Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic. Grok 4.1 Fast was released 19 Nov 2025 by xAI.
Other head-to-heads
56Claude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 shared evalsClaude Sonnet 4.6 vs GPT-5.530 shared evalsGPT-5.2 vs Grok 4.1 Fast30 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.629 shared evalsClaude Opus 4.5 vs Grok 4.1 Fast29 shared evalsClaude Opus 4.7 vs Claude Sonnet 4.629 shared evalsClaude Sonnet 4.5 vs Grok 4.1 Fast28 shared evalsClaude Fable 5 vs Claude Sonnet 4.628 shared evalsClaude Sonnet 4.6 vs GPT-5.428 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsClaude Sonnet 4.6 vs GPT-5.4 Mini28 shared evalsClaude Sonnet 4.6 vs Kimi K2.527 shared evalsGPT-5 Mini vs Grok 4.1 Fast26 shared evalsClaude Sonnet 4.6 vs Qwen3.6 Plus26 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 evalsGPT-5.4 vs Grok 4.1 Fast25 shared evalsClaude Opus 4.6 vs Grok 4.1 Fast25 shared evalsClaude Sonnet 4.6 vs GLM 5.125 shared evalsClaude Sonnet 4.5 vs Claude Sonnet 4.624 shared evalsGPT-5 Nano vs Grok 4.1 Fast24 shared evalsClaude Sonnet 4.6 vs GPT-5.224 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 Sonnet 4.6 vs GPT-5 Mini23 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.623 shared evalsClaude Fable 5 vs Grok 4.1 Fast23 shared evalsClaude Sonnet 4.6 vs DeepSeek V3.223 shared evalsGLM 5.1 vs Grok 4.1 Fast23 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 evalsClaude Sonnet 4.6 vs GPT-5 Nano20 shared evalsClaude 4 Sonnet vs Claude Sonnet 4.620 shared evalsgpt-oss-120b vs Grok 4.1 Fast20 shared evalsClaude Sonnet 4.6 vs Gemini 2.5 Pro19 shared evalsClaude Sonnet 4.6 vs GLM 4.719 shared evalsClaude Sonnet 4.6 vs gpt-oss-120b18 shared evalsClaude Sonnet 4.6 vs GPT-516 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 evalsClaude Sonnet 4.6 vs GPT-4o14 shared evalsGPT-4.1 Nano vs Grok 4.1 Fast14 shared evalsGPT-4.1 vs Grok 4.1 Fast13 shared evalsClaude Sonnet 4.6 vs GPT-6 Astra13 shared evalsClaude Sonnet 4.6 vs GPT-4.1 Mini12 shared evalsClaude Sonnet 4.6 vs GPT-4.112 shared evalsClaude Sonnet 4.6 vs GPT-4o-mini12 shared evalsClaude Sonnet 4.6 vs GPT-4.1 Nano12 shared evalsGPT-6 Astra vs Grok 4.1 Fast10 shared evals
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