Model comparison
Gemma 3n E4b IT vs Grok 4 Fast
Grok 4 Fast is the stronger model overall, scoring 39.4 to 37.3 on the Noometry Index.
Last verified . 18 shared benchmarks.
GoogleSummary
- They share 18 benchmarks with published results for both. Gemma 3n E4b IT scores higher in 2 categories and Grok 4 Fast in 6 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 Fast leads 63.2 to 38.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 31.5% for Gemma 3n E4b IT and 66.1% for Grok 4 Fast.
- Gemma 3n E4b IT has downloadable open weights; the other is API-only.
Side by side
| Gemma 3n E4b IT | Grok 4 Fast | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 37.3 | 39.4 |
| Released | — | 2025-09-19 |
| Weights | Open | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 18 | 30 |
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Category by category
Coding Gemma 3n E4b IT leads
Gemma 3n E4b IT: 37.0 (#198), Grok 4 Fast: 32.5 (#271)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Coding | 1268 | 1429 |
| LMArena WebDev | — | 1159 |
| WeirdML | — | 42.9% |
Agentic & Tool Use Not comparable
Gemma 3n E4b IT: —, Grok 4 Fast: 29.5 (#86)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| τ²-bench Banking | — | 15.7% |
| Cybench | — | 30% |
| LMArena Search | — | 1171 |
Reasoning Grok 4 Fast leads
Gemma 3n E4b IT: 19.9 (#247), Grok 4 Fast: 22.2 (#201)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| Kagi LLM Benchmark | 31.5% | 66.1% |
| LMArena Hard Prompts | 1284 | 1412 |
| ARC-AGI-2 | — | 5.3% |
| ARC-AGI-1 | — | 48.5% |
| DTBench | — | 82.7% |
| Epoch Capabilities Index | — | 144.2 |
| ForecastBench | — | 60.5 |
Math Grok 4 Fast leads
Gemma 3n E4b IT: 35.1 (#188), Grok 4 Fast: 38.9 (#123)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Math | 1251 | 1419 |
Knowledge Gemma 3n E4b IT leads
Gemma 3n E4b IT: 34.2 (#198), Grok 4 Fast: 32.0 (#214)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Expert | 1246 | 1411 |
| Vectara Hallucination Rate | — | 19.7% |
Multilingual Grok 4 Fast leads
Gemma 3n E4b IT: 43.4 (#183), Grok 4 Fast: 51.3 (#111)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Non-English | 1285 | 1396 |
| LMArena Chinese | 1309 | 1457 |
| LMArena French | 1330 | 1431 |
| LMArena German | 1311 | 1383 |
| LMArena Japanese | 1272 | 1352 |
| LMArena Korean | 1259 | 1357 |
| LMArena Russian | 1288 | 1389 |
| LMArena Spanish | 1305 | 1415 |
Instruction Following Grok 4 Fast leads
Gemma 3n E4b IT: 66.1 (#210), Grok 4 Fast: 73.2 (#121)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Instruction Following | 1255 | 1387 |
Long Context Grok 4 Fast leads
Gemma 3n E4b IT: 38.7 (#191), Grok 4 Fast: 63.2 (#3)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Longer Query | 1276 | 1415 |
| Fiction.LiveBench | — | 94.4% |
Writing & Preference Grok 4 Fast leads
Gemma 3n E4b IT: 50.1 (#186), Grok 4 Fast: 60.0 (#102)
| Benchmark | Gemma 3n E4b IT | Grok 4 Fast |
|---|---|---|
| LMArena Text | 1306 | 1407 |
| LMArena Creative Writing | 1287 | 1387 |
| LMArena Multi-Turn | 1276 | 1414 |
Frequently asked questions
Is Gemma 3n E4b IT better than Grok 4 Fast?
Grok 4 Fast is the stronger model overall, scoring 39.4 to 37.3 on the Noometry Index.
Is Gemma 3n E4b IT or Grok 4 Fast better for coding?
Gemma 3n E4b IT scores higher on coding benchmarks: 37.0 versus 32.5 in the Noometry coding category.
How many benchmarks do Gemma 3n E4b IT and Grok 4 Fast share?
18 benchmarks have published results for both models. Gemma 3n E4b IT has 18 scored results on Noometry and Grok 4 Fast has 30.