Model comparison
Claude 3.5 Sonnet vs Grok 4.1
Grok 4.1 is the stronger model overall, scoring 41.5 to 34.6 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 1 category and Grok 4.1 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Grok 4.1 leads 38.9 to 19.2.
- The biggest single-benchmark swing is Cybench: 17.5% for Claude 3.5 Sonnet and 39% for Grok 4.1.
Side by side
| Claude 3.5 Sonnet | Grok 4.1 | |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 34.6 | 41.5 |
| Released | 2024-06-20 | 2025-11-17 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 60 | 19 |
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Category by category
Coding Claude 3.5 Sonnet leads
Claude 3.5 Sonnet: 39.0 (#165), Grok 4.1: 33.7 (#253)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Coding | 1342 | 1445 |
| Aider Polyglot | 51.6% | — |
| LMArena WebDev | — | 1214 |
| GSO | 4.6% | — |
| WeirdML | 40% | — |
| BigCodeBench Instruct | 46.8% | — |
| LiveBench Coding | 67.1% | — |
| BigCodeBench Complete | 58.6% | — |
| CadEval | 48% | — |
| HumanEval+ | 81.7% | — |
| MBPP+ | 74.3% | — |
Agentic & Tool Use Grok 4.1 leads
Claude 3.5 Sonnet: 32.3 (#67), Grok 4.1: 34.1 (#49)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| Cybench | 17.5% | 39% |
| TheAgentCompany | 24% | — |
| BALROG | 32.6% | — |
| METR Time Horizons | 45.2% | — |
Reasoning Grok 4.1 leads
Claude 3.5 Sonnet: 23.1 (#183), Grok 4.1: 29.5 (#91)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Hard Prompts | 1305 | 1435 |
| SimpleBench | 41.4% | — |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| DTBench | 67.8% | — |
| LiveBench Data Analysis | 55% | — |
| Epoch Capabilities Index | 133.55 | — |
| ForecastBench | 60.7 | — |
| LiveBench | 59% | — |
Math Grok 4.1 leads
Claude 3.5 Sonnet: 19.2 (#288), Grok 4.1: 38.9 (#120)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Math | 1307 | 1422 |
| OTIS Mock AIME 2024-2025 | 8.5% | — |
| Omni-MATH | 27.6% | — |
| LiveBench Math | 52.3% | — |
| MATH Level 5 | 56.9% | — |
| FrontierMath (Feb 2025 set) | 2.1% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Grok 4.1 leads
Claude 3.5 Sonnet: 28.6 (#245), Grok 4.1: 39.5 (#133)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Expert | 1265 | 1417 |
| GPQA Diamond | 55.3% | — |
| Humanity's Last Exam | 4.1% | — |
| MMLU-Pro | 77.7% | — |
| Confabulations | 19.9% | — |
| GPQA (HELM) | 56.5% | — |
| MMLU | 87.3% | — |
Multimodal Not comparable
Claude 3.5 Sonnet: 26.5 (#120), Grok 4.1: —
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Vision | 1125 | — |
| Video-MME | 60% | — |
| GeoBench | 62% | — |
| VPCT | 33% | — |
Multilingual Grok 4.1 leads
Claude 3.5 Sonnet: 43.2 (#185), Grok 4.1: 53.4 (#68)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Non-English | 1283 | 1425 |
| LMArena Chinese | 1272 | 1465 |
| LMArena French | 1305 | 1448 |
| LMArena German | 1297 | 1446 |
| LMArena Japanese | 1234 | 1397 |
| LMArena Korean | 1200 | 1407 |
| LMArena Russian | 1306 | 1434 |
| LMArena Spanish | 1290 | 1438 |
Instruction Following Grok 4.1 leads
Claude 3.5 Sonnet: 68.8 (#182), Grok 4.1: 73.8 (#111)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Instruction Following | 1297 | 1400 |
| LiveBench Instruction Following | 69.3% | — |
| IFEval | 85.5% | — |
Long Context Grok 4.1 leads
Claude 3.5 Sonnet: 39.9 (#167), Grok 4.1: 43.2 (#100)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Longer Query | 1311 | 1416 |
Writing & Preference Grok 4.1 leads
Claude 3.5 Sonnet: 52.9 (#164), Grok 4.1: 62.4 (#75)
| Benchmark | Claude 3.5 Sonnet | Grok 4.1 |
|---|---|---|
| LMArena Text | 1298 | 1437 |
| LMArena Creative Writing | 1292 | 1411 |
| LMArena Multi-Turn | 1326 | 1437 |
| Short-Story Creative Writing | 80.3% | — |
| EQ-Bench Creative Writing | 1451 | — |
| WildBench | 79.2% | — |
| LiveBench Language | 53.8% | — |
Frequently asked questions
Is Claude 3.5 Sonnet better than Grok 4.1?
Grok 4.1 is the stronger model overall, scoring 41.5 to 34.6 on the Noometry Index.
Is Claude 3.5 Sonnet or Grok 4.1 better for coding?
Claude 3.5 Sonnet scores higher on coding benchmarks: 39.0 versus 33.7 in the Noometry coding category.
How many benchmarks do Claude 3.5 Sonnet and Grok 4.1 share?
18 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Grok 4.1 has 19.