Model comparison
GPT-4.1 nano vs Grok 4.1
Grok 4.1 is the stronger model overall, scoring 41.5 to 27.9 on the Noometry Index.
Last verified . 14 shared benchmarks.
Summary
- They share 14 benchmarks with published results for both. GPT-4.1 nano scores higher in 0 categories and Grok 4.1 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 4.1 leads 62.4 to 40.5.
Side by side
| GPT-4.1 nano | Grok 4.1 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 27.9 | 41.5 |
| Released | 2025-04-14 | 2025-11-17 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 33K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.40 | — |
| Results tracked | 38 | 19 |
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Category by category
Coding Grok 4.1 leads
GPT-4.1 nano: 24.1 (#330), Grok 4.1: 33.7 (#253)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Coding | 1306 | 1445 |
| Aider Polyglot | 8.9% | — |
| LMArena WebDev | — | 1214 |
| SciCode | 25.9% | — |
| WeirdML | 19% | — |
Agentic & Tool Use Grok 4.1 leads
GPT-4.1 nano: 26.5 (#104), Grok 4.1: 34.1 (#49)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 33% | — |
| Cybench | — | 39% |
Reasoning Grok 4.1 leads
GPT-4.1 nano: 8.5 (#349), Grok 4.1: 29.5 (#91)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Hard Prompts | 1286 | 1435 |
| ARC-AGI-2 | 0% | — |
| Kagi LLM Benchmark | 33.3% | — |
| ARC-AGI-1 | 0% | — |
| CritPt | 0% | — |
| DTBench | 52.5% | — |
| LMCA | 5.5% | — |
| Epoch Capabilities Index | 129.62 | — |
Math Grok 4.1 leads
GPT-4.1 nano: 26.9 (#252), Grok 4.1: 38.9 (#120)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Math | 1274 | 1422 |
| OTIS Mock AIME 2024-2025 | 28.9% | — |
| Omni-MATH | 36.7% | — |
| MATH Level 5 | 70% | — |
| FrontierMath (Feb 2025 set) | 1% | — |
Knowledge Grok 4.1 leads
GPT-4.1 nano: 21.8 (#273), Grok 4.1: 39.5 (#133)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Expert | 1272 | 1417 |
| GPQA Diamond | 48.9% | — |
| SimpleQA Verified | 6% | — |
| MMLU-Pro | 55% | — |
| GPQA (HELM) | 50.7% | — |
Multimodal Not comparable
GPT-4.1 nano: 29.2 (#113), Grok 4.1: —
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Vision | 1063 | — |
Multilingual Grok 4.1 leads
GPT-4.1 nano: 41.6 (#205), Grok 4.1: 53.4 (#68)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Non-English | 1260 | 1425 |
| LMArena Chinese | 1270 | 1465 |
| LMArena German | 1288 | 1446 |
| LMArena Japanese | 1198 | 1397 |
| LMArena Russian | 1261 | 1434 |
| LMArena French | — | 1448 |
| LMArena Korean | — | 1407 |
| LMArena Spanish | — | 1438 |
Instruction Following Grok 4.1 leads
GPT-4.1 nano: 67.8 (#193), Grok 4.1: 73.8 (#111)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Instruction Following | 1267 | 1400 |
| IFEval | 84.3% | — |
Long Context Grok 4.1 leads
GPT-4.1 nano: 23.7 (#296), Grok 4.1: 43.2 (#100)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Longer Query | 1283 | 1416 |
| Fiction.LiveBench | 25% | — |
Writing & Preference Grok 4.1 leads
GPT-4.1 nano: 40.5 (#243), Grok 4.1: 62.4 (#75)
| Benchmark | GPT-4.1 nano | Grok 4.1 |
|---|---|---|
| LMArena Text | 1285 | 1437 |
| LMArena Creative Writing | 1260 | 1411 |
| LMArena Multi-Turn | 1277 | 1437 |
| EQ-Bench Creative Writing | 946 | — |
| WildBench | 81.2% | — |
Frequently asked questions
Is GPT-4.1 nano better than Grok 4.1?
Grok 4.1 is the stronger model overall, scoring 41.5 to 27.9 on the Noometry Index.
Is GPT-4.1 nano or Grok 4.1 better for coding?
Grok 4.1 scores higher on coding benchmarks: 33.7 versus 24.1 in the Noometry coding category.
How many benchmarks do GPT-4.1 nano and Grok 4.1 share?
14 benchmarks have published results for both models. GPT-4.1 nano has 38 scored results on Noometry and Grok 4.1 has 19.