Model comparison
Grok 4.1 Fast vs Wizardlm 70b
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 33.0 on the Noometry Index.
Last verified . 12 shared benchmarks.
MicrosoftSummary
- They share 12 benchmarks with published results for both. Grok 4.1 Fast scores higher in 6 categories and Wizardlm 70b in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 20.7.
- Wizardlm 70b has downloadable open weights; the other is API-only.
Side by side
| Grok 4.1 Fast | Wizardlm 70b | |
|---|---|---|
| Provider | xAI | Microsoft |
| Noometry Index | 41.4 | 33.0 |
| Released | 2025-06-27 | — |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 30K | — |
| Input $ / M tokens | $0.20 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 32 | 12 |
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Category by category
Coding Grok 4.1 Fast leads
Grok 4.1 Fast: 34.1 (#245), Wizardlm 70b: 31.4 (#285)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Coding | 1411 | 1081 |
| LMArena WebDev | 1242 | — |
| ALE-Bench | 394.93 | — |
Agentic & Tool Use Not comparable
Grok 4.1 Fast: 36.3 (#39), Wizardlm 70b: —
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| Berkeley Function Calling Leaderboard | 69.6% | — |
| τ²-bench Banking | 13.1% | — |
| LMArena Search | 1171 | — |
| Vending-Bench 2 | 1,107 | — |
Reasoning Grok 4.1 Fast leads
Grok 4.1 Fast: 43.4 (#49), Wizardlm 70b: 20.7 (#234)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Hard Prompts | 1407 | 1079 |
| SimpleBench | 56% | — |
| NYT Connections (extended) | 87.4% | — |
| DTBench | 87.7% | — |
| ForecastBench | 61 | — |
Math Too close to call
Grok 4.1 Fast: 31.9 (#221), Wizardlm 70b: 32.2 (#218)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Math | 1408 | 1116 |
| MathArena Final-Answer Competitions | 60.9% | — |
| ProofBench | 4% | — |
Knowledge Not comparable
Grok 4.1 Fast: 33.1 (#207), Wizardlm 70b: —
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| Vectara Hallucination Rate | 17.8% | — |
| LMArena Expert | 1399 | — |
Multimodal Not comparable
Grok 4.1 Fast: 37.0 (#76), Wizardlm 70b: —
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Vision | 1201 | — |
Multilingual Grok 4.1 Fast leads
Grok 4.1 Fast: 51.0 (#114), Wizardlm 70b: 29.6 (#265)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Non-English | 1391 | 1078 |
| LMArena Chinese | 1441 | 1052 |
| LMArena German | 1404 | 1083 |
| LMArena Russian | 1387 | 1155 |
| LMArena French | 1415 | — |
| LMArena Japanese | 1349 | — |
| LMArena Korean | 1361 | — |
| LMArena Spanish | 1413 | — |
Instruction Following Grok 4.1 Fast leads
Grok 4.1 Fast: 72.7 (#133), Wizardlm 70b: 56.3 (#273)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Instruction Following | 1376 | 1093 |
Long Context Grok 4.1 Fast leads
Grok 4.1 Fast: 42.4 (#126), Wizardlm 70b: 33.3 (#263)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Longer Query | 1390 | 1097 |
Writing & Preference Grok 4.1 Fast leads
Grok 4.1 Fast: 57.2 (#131), Wizardlm 70b: 34.8 (#269)
| Benchmark | Grok 4.1 Fast | Wizardlm 70b |
|---|---|---|
| LMArena Text | 1408 | 1120 |
| LMArena Creative Writing | 1394 | 1149 |
| LMArena Multi-Turn | 1389 | 1108 |
| EQ-Bench Creative Writing | 1327 | — |
Frequently asked questions
Is Grok 4.1 Fast better than Wizardlm 70b?
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 33.0 on the Noometry Index.
Is Grok 4.1 Fast or Wizardlm 70b better for coding?
Grok 4.1 Fast scores higher on coding benchmarks: 34.1 versus 31.4 in the Noometry coding category.
How many benchmarks do Grok 4.1 Fast and Wizardlm 70b share?
12 benchmarks have published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Wizardlm 70b has 12.