Model comparison
Grok 4 Fast vs Qwen Max
Grok 4 Fast is the stronger model overall, scoring 39.4 to 34.7 on the Noometry Index.
Last verified . 18 shared benchmarks.
Alibaba (Qwen)Summary
- They share 18 benchmarks with published results for both. Grok 4 Fast scores higher in 7 categories and Qwen Max in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 Fast leads 63.2 to 39.4.
- The biggest single-benchmark swing is Fiction.LiveBench: 94.4% for Grok 4 Fast and 66.7% for Qwen Max.
Side by side
| Grok 4 Fast | Qwen Max | |
|---|---|---|
| Provider | xAI | Alibaba (Qwen) |
| Noometry Index | 39.4 | 34.7 |
| Released | 2025-09-19 | 2024-04-03 |
| Weights | Proprietary | Proprietary |
| Context window | — | 33K |
| Max output | — | 8K |
| Input $ / M tokens | — | $1.60 |
| Output $ / M tokens | — | $6.40 |
| Results tracked | 30 | 23 |
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Category by category
Coding Grok 4 Fast leads
Grok 4 Fast: 32.5 (#271), Qwen Max: 30.7 (#292)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Coding | 1429 | 1288 |
| Aider Polyglot | — | 21.8% |
| LMArena WebDev | 1159 | — |
| WeirdML | 42.9% | — |
Agentic & Tool Use Not comparable
Grok 4 Fast: 29.5 (#86), Qwen Max: —
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| τ²-bench Banking | 15.7% | — |
| Cybench | 30% | — |
| LMArena Search | 1171 | — |
Reasoning Qwen Max leads
Grok 4 Fast: 22.2 (#201), Qwen Max: 25.1 (#151)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Hard Prompts | 1412 | 1269 |
| ARC-AGI-2 | 5.3% | — |
| Kagi LLM Benchmark | 66.1% | — |
| ARC-AGI-1 | 48.5% | — |
| DTBench | 82.7% | — |
| Epoch Capabilities Index | 144.2 | — |
| ForecastBench | 60.5 | — |
Math Grok 4 Fast leads
Grok 4 Fast: 38.9 (#123), Qwen Max: 22.3 (#276)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Math | 1419 | 1275 |
| OTIS Mock AIME 2024-2025 | — | 16.1% |
| MATH Level 5 | — | 67.2% |
| FrontierMath (Feb 2025 set) | — | 1% |
Knowledge Grok 4 Fast leads
Grok 4 Fast: 32.0 (#214), Qwen Max: 30.3 (#228)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Expert | 1411 | 1248 |
| GPQA Diamond | — | 56.1% |
| Vectara Hallucination Rate | 19.7% | — |
Multilingual Grok 4 Fast leads
Grok 4 Fast: 51.3 (#111), Qwen Max: 41.8 (#202)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Non-English | 1396 | 1263 |
| LMArena Chinese | 1457 | 1254 |
| LMArena French | 1431 | 1330 |
| LMArena German | 1383 | 1254 |
| LMArena Japanese | 1352 | 1205 |
| LMArena Korean | 1357 | 1142 |
| LMArena Russian | 1389 | 1274 |
| LMArena Spanish | 1415 | 1290 |
Instruction Following Grok 4 Fast leads
Grok 4 Fast: 73.2 (#121), Qwen Max: 66.5 (#208)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Instruction Following | 1387 | 1262 |
Long Context Grok 4 Fast leads
Grok 4 Fast: 63.2 (#3), Qwen Max: 39.4 (#180)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| Fiction.LiveBench | 94.4% | 66.7% |
| LMArena Longer Query | 1415 | 1288 |
Writing & Preference Grok 4 Fast leads
Grok 4 Fast: 60.0 (#102), Qwen Max: 47.8 (#205)
| Benchmark | Grok 4 Fast | Qwen Max |
|---|---|---|
| LMArena Text | 1407 | 1282 |
| LMArena Creative Writing | 1387 | 1248 |
| LMArena Multi-Turn | 1414 | 1277 |
Frequently asked questions
Is Grok 4 Fast better than Qwen Max?
Grok 4 Fast is the stronger model overall, scoring 39.4 to 34.7 on the Noometry Index.
Is Grok 4 Fast or Qwen Max better for coding?
Grok 4 Fast scores higher on coding benchmarks: 32.5 versus 30.7 in the Noometry coding category.
How many benchmarks do Grok 4 Fast and Qwen Max share?
18 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and Qwen Max has 23.