Model comparison
Grok 4.1 Fast vs Llama 3.2 90B
Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 27.1 on the Noometry Index.
Last verified . 1 shared benchmarks.
MetaSummary
- They share 1 benchmark with published results for both. Grok 4.1 Fast scores higher in 5 categories and Llama 3.2 90B in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 42.3 to 20.9.
- Llama 3.2 90B has downloadable open weights; the other is API-only.
Side by side
| Grok 4.1 Fast | Llama 3.2 90B | |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 40.9 | 27.1 |
| Released | 2025-06-27 | 2024-09-24 |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 30K | — |
| Input $ / M tokens | $0.20 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 32 | 9 |
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Category by category
Coding Not comparable
Grok 4.1 Fast: 33.8 (#236), Llama 3.2 90B: —
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| LMArena WebDev | 1241 | — |
| LMArena Coding | 1411 | — |
| ALE-Bench | 394.93 | — |
Agentic & Tool Use Grok 4.1 Fast leads
Grok 4.1 Fast: 36.1 (#35), Llama 3.2 90B: 29.7 (#73)
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| Berkeley Function Calling Leaderboard | 69.6% | — |
| τ²-bench Banking | 13.1% | — |
| BALROG | — | 27.3% |
| LMArena Search | 1171 | — |
| Vending-Bench 2 | 1,107 | — |
Reasoning Grok 4.1 Fast leads
Grok 4.1 Fast: 42.3 (#45), Llama 3.2 90B: 20.9 (#207)
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| SimpleBench | 56% | — |
| NYT Connections (extended) | 87.4% | — |
| EnigmaEval | — | 0.4% |
| LMArena Hard Prompts | 1407 | — |
| DTBench | 87.7% | — |
| Epoch Capabilities Index | — | 125.5 |
| ForecastBench | 61 | — |
Math Grok 4.1 Fast leads
Grok 4.1 Fast: 30.9 (#201), Llama 3.2 90B: 10.4 (#302)
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| MathArena Final-Answer Competitions | 60.9% | — |
| OTIS Mock AIME 2024-2025 | — | 2.6% |
| ProofBench | 4% | — |
| LMArena Math | 1408 | — |
| MATH Level 5 | — | 39.4% |
Knowledge Grok 4.1 Fast leads
Grok 4.1 Fast: 32.6 (#203), Llama 3.2 90B: 21.7 (#269)
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| GPQA Diamond | — | 41% |
| Vectara Hallucination Rate | 17.8% | — |
| LMArena Expert | 1398 | — |
| MMLU | — | 80.3% |
Multimodal Grok 4.1 Fast leads
Grok 4.1 Fast: 36.3 (#71), Llama 3.2 90B: 24.9 (#119)
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| LMArena Vision | 1201 | 1000 |
| GeoBench | — | 52% |
Multilingual Not comparable
Grok 4.1 Fast: 51.1 (#110), Llama 3.2 90B: —
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| LMArena Non-English | 1391 | — |
| LMArena Chinese | 1441 | — |
| LMArena French | 1416 | — |
| LMArena German | 1404 | — |
| LMArena Japanese | 1347 | — |
| LMArena Korean | 1361 | — |
| LMArena Russian | 1387 | — |
| LMArena Spanish | 1411 | — |
Instruction Following Not comparable
Grok 4.1 Fast: 72.8 (#127), Llama 3.2 90B: —
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| LMArena Instruction Following | 1376 | — |
Long Context Not comparable
Grok 4.1 Fast: 42.4 (#121), Llama 3.2 90B: —
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| LMArena Longer Query | 1390 | — |
Writing & Preference Not comparable
Grok 4.1 Fast: 57.4 (#126), Llama 3.2 90B: —
| Benchmark | Grok 4.1 Fast | Llama 3.2 90B |
|---|---|---|
| LMArena Text | 1408 | — |
| LMArena Creative Writing | 1394 | — |
| EQ-Bench Creative Writing | 1327 | — |
| LMArena Multi-Turn | 1389 | — |
Frequently asked questions
Is Grok 4.1 Fast better than Llama 3.2 90B?
Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 27.1 on the Noometry Index.
How many benchmarks do Grok 4.1 Fast and Llama 3.2 90B share?
1 benchmark has published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Llama 3.2 90B has 9.