Model comparison
Grok 2 Mini 2024 08 13 vs Grok 4.1 Fast
Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 37.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Grok 2 Mini 2024 08 13 scores higher in 3 categories and Grok 4.1 Fast in 5 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 42.3 to 23.7.
Side by side
| Grok 2 Mini 2024 08 13 | Grok 4.1 Fast | |
|---|---|---|
| Provider | xAI | xAI |
| Noometry Index | 37.0 | 40.9 |
| Released | 2024-08-13 | 2025-06-27 |
| Weights | Proprietary | Proprietary |
| Context window | — | 128K |
| Max output | — | 30K |
| Input $ / M tokens | — | $0.20 |
| Output $ / M tokens | — | $0.50 |
| Results tracked | 17 | 32 |
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Category by category
Coding Grok 2 Mini 2024 08 13 leads
Grok 2 Mini 2024 08 13: 36.4 (#194), Grok 4.1 Fast: 33.8 (#236)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Coding | 1269 | 1411 |
| LMArena WebDev | — | 1241 |
| ALE-Bench | — | 394.93 |
Agentic & Tool Use Not comparable
Grok 2 Mini 2024 08 13: —, Grok 4.1 Fast: 36.1 (#35)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| 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 2 Mini 2024 08 13: 23.7 (#162), Grok 4.1 Fast: 42.3 (#45)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Hard Prompts | 1255 | 1407 |
| SimpleBench | — | 56% |
| NYT Connections (extended) | — | 87.4% |
| DTBench | — | 87.7% |
| ForecastBench | — | 61 |
Math Grok 2 Mini 2024 08 13 leads
Grok 2 Mini 2024 08 13: 32.8 (#185), Grok 4.1 Fast: 30.9 (#201)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Math | 1265 | 1408 |
| MathArena Final-Answer Competitions | — | 60.9% |
| ProofBench | — | 4% |
Knowledge Too close to call
Grok 2 Mini 2024 08 13: 33.4 (#195), Grok 4.1 Fast: 32.6 (#203)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Expert | 1238 | 1398 |
| Vectara Hallucination Rate | — | 17.8% |
Multimodal Not comparable
Grok 2 Mini 2024 08 13: —, Grok 4.1 Fast: 36.3 (#71)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Vision | — | 1201 |
Multilingual Grok 4.1 Fast leads
Grok 2 Mini 2024 08 13: 41.6 (#203), Grok 4.1 Fast: 51.1 (#110)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Non-English | 1257 | 1391 |
| LMArena Chinese | 1262 | 1441 |
| LMArena French | 1285 | 1416 |
| LMArena German | 1273 | 1404 |
| LMArena Japanese | 1213 | 1347 |
| LMArena Korean | 1195 | 1361 |
| LMArena Russian | 1261 | 1387 |
| LMArena Spanish | 1278 | 1411 |
Instruction Following Grok 4.1 Fast leads
Grok 2 Mini 2024 08 13: 65.7 (#215), Grok 4.1 Fast: 72.8 (#127)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Instruction Following | 1245 | 1376 |
Long Context Grok 4.1 Fast leads
Grok 2 Mini 2024 08 13: 38.4 (#191), Grok 4.1 Fast: 42.4 (#121)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Longer Query | 1267 | 1390 |
Writing & Preference Grok 4.1 Fast leads
Grok 2 Mini 2024 08 13: 47.5 (#207), Grok 4.1 Fast: 57.4 (#126)
| Benchmark | Grok 2 Mini 2024 08 13 | Grok 4.1 Fast |
|---|---|---|
| LMArena Text | 1281 | 1408 |
| LMArena Creative Writing | 1242 | 1394 |
| LMArena Multi-Turn | 1265 | 1389 |
| EQ-Bench Creative Writing | — | 1327 |
Frequently asked questions
Is Grok 2 Mini 2024 08 13 better than Grok 4.1 Fast?
Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 37.0 on the Noometry Index.
Is Grok 2 Mini 2024 08 13 or Grok 4.1 Fast better for coding?
Grok 2 Mini 2024 08 13 scores higher on coding benchmarks: 36.4 versus 33.8 in the Noometry coding category.
How many benchmarks do Grok 2 Mini 2024 08 13 and Grok 4.1 Fast share?
17 benchmarks have published results for both models. Grok 2 Mini 2024 08 13 has 17 scored results on Noometry and Grok 4.1 Fast has 32.