Model comparison
Grok 4.1 vs o3
o3 is the stronger model overall, scoring 47.5 to 41.5 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Grok 4.1 scores higher in 2 categories and o3 in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o3 leads 54.6 to 39.5.
Side by side
| Grok 4.1 | o3 | |
|---|---|---|
| Provider | xAI | OpenAI |
| Noometry Index | 41.5 | 47.5 |
| Released | 2025-11-17 | 2025-04-16 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 100K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $8 |
| Results tracked | 19 | 63 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding o3 leads
Grok 4.1: 33.7 (#253), o3: 46.8 (#64)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Coding | 1445 | 1408 |
| SWE-bench Verified | — | 62.3% |
| SWE-bench Verified (bash only) | — | 58.4% |
| Aider Polyglot | — | 81.3% |
| LMArena WebDev | 1214 | — |
| GSO | — | 8.8% |
| WeirdML | — | 52.4% |
| CadEval | — | 74% |
| ALE-Bench | — | 933.55 |
Agentic & Tool Use Too close to call
Grok 4.1: 34.1 (#49), o3: 34.5 (#44)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 63% |
| GDPval | — | 30.8% |
| Cybench | 39% | — |
| DeepResearch Bench | — | 45.2% |
| OSWorld | — | 23% |
| LMArena Search | — | 1144 |
| METR Time Horizons | — | 65.4% |
Reasoning o3 leads
Grok 4.1: 29.5 (#91), o3: 32.0 (#78)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Hard Prompts | 1435 | 1402 |
| ARC-AGI-2 | — | 6.5% |
| SimpleBench | — | 53.1% |
| Kagi LLM Benchmark | — | 67.6% |
| ARC-AGI-1 | — | 60.8% |
| CritPt | — | 1.4% |
| Chess Puzzles | — | 38% |
| EnigmaEval | — | 13.1% |
| Mystery Game Puzzles | — | 29% |
| DTBench | — | 84.8% |
| LMCA | — | 39.7% |
| Epoch Capabilities Index | — | 146.86 |
| ForecastBench | — | 62.5 |
Math o3 leads
Grok 4.1: 38.9 (#120), o3: 50.2 (#58)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Math | 1422 | 1426 |
| FrontierMath (Tiers 1-3) | — | 33.3% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| Omni-MATH | — | 71.4% |
| MATH Level 5 | — | 97.8% |
| FrontierMath (Feb 2025 set) | — | 18.7% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge o3 leads
Grok 4.1: 39.5 (#133), o3: 54.6 (#52)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Expert | 1417 | 1402 |
| GPQA Diamond | — | 81.8% |
| Humanity's Last Exam | — | 20.3% |
| SimpleQA Verified | — | 49.4% |
| MMLU-Pro | — | 85.9% |
| Confabulations | — | 14.4% |
| GPQA (HELM) | — | 75.3% |
Multimodal Not comparable
Grok 4.1: —, o3: 41.4 (#36)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Vision | — | 1214 |
| GeoBench | — | 74% |
| VPCT | — | 52% |
Multilingual Grok 4.1 leads
Grok 4.1: 53.4 (#68), o3: 51.7 (#105)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Non-English | 1425 | 1401 |
| LMArena Chinese | 1465 | 1437 |
| LMArena French | 1448 | 1430 |
| LMArena German | 1446 | 1420 |
| LMArena Japanese | 1397 | 1403 |
| LMArena Korean | 1407 | 1370 |
| LMArena Russian | 1434 | 1406 |
| LMArena Spanish | 1438 | 1395 |
Instruction Following Grok 4.1 leads
Grok 4.1: 73.8 (#111), o3: 72.8 (#127)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Instruction Following | 1400 | 1368 |
| IFEval | — | 86.9% |
Long Context o3 leads
Grok 4.1: 43.2 (#100), o3: 53.3 (#6)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Longer Query | 1416 | 1372 |
| Fiction.LiveBench | — | 88.9% |
| CL-bench | — | 17.8% |
Writing & Preference o3 leads
Grok 4.1: 62.4 (#75), o3: 63.5 (#64)
| Benchmark | Grok 4.1 | o3 |
|---|---|---|
| LMArena Text | 1437 | 1410 |
| LMArena Creative Writing | 1411 | 1359 |
| LMArena Multi-Turn | 1437 | 1405 |
| Short-Story Creative Writing | — | 83.9% |
| EQ-Bench Creative Writing | — | 1676 |
| WildBench | — | 86.1% |
Frequently asked questions
Is Grok 4.1 better than o3?
o3 is the stronger model overall, scoring 47.5 to 41.5 on the Noometry Index.
Is Grok 4.1 or o3 better for coding?
o3 scores higher on coding benchmarks: 46.8 versus 33.7 in the Noometry coding category.
How many benchmarks do Grok 4.1 and o3 share?
17 benchmarks have published results for both models. Grok 4.1 has 19 scored results on Noometry and o3 has 63.