Model comparison
Gemma 4 31B IT vs Grok 3
Gemma 4 31B IT is the stronger model overall, scoring 43.5 to 39.9 on the Noometry Index.
Last verified . 21 shared benchmarks.
GoogleSummary
- They share 21 benchmarks with published results for both. Gemma 4 31B IT scores higher in 7 categories and Grok 3 in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemma 4 31B IT leads 27.2 to 13.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 73.3% for Gemma 4 31B IT and 55.6% for Grok 3.
- Gemma 4 31B IT has downloadable open weights; the other is API-only.
Side by side
| Gemma 4 31B IT | Grok 3 | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 43.5 | 39.9 |
| Released | 2026-04-02 | 2025-04-09 |
| Weights | Open | Proprietary |
| Context window | 262K | — |
| Max output | 33K | — |
| Input $ / M tokens | $0.09 | — |
| Output $ / M tokens | $0.34 | — |
| Results tracked | 35 | 40 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Too close to call
Gemma 4 31B IT: 42.3 (#108), Grok 3: 41.9 (#115)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| WeirdML | 52.3% | 37.2% |
| LMArena Coding | 1459 | 1432 |
| Aider Polyglot | — | 53.3% |
| LMArena WebDev | 1366 | — |
| SciCode | 43.4% | — |
| ALE-Bench | 925.5 | — |
Agentic & Tool Use Not comparable
Gemma 4 31B IT: —, Grok 3: 30.5 (#76)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| BALROG | — | 29.5% |
Reasoning Gemma 4 31B IT leads
Gemma 4 31B IT: 27.2 (#122), Grok 3: 13.7 (#333)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| Kagi LLM Benchmark | 63.5% | 61.3% |
| LMArena Hard Prompts | 1448 | 1434 |
| Epoch Capabilities Index | 142.74 | 138.33 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| NYT Connections (extended) | 70.6% | — |
| ARC-AGI-1 | — | 5.5% |
| CritPt | 1.4% | — |
| Chess Puzzles | 5% | — |
| Thematic Generalization | 53% | — |
| DTBench | 82.7% | — |
| LMCA | 39.3% | — |
| Surface Evolver Bench | 30.6% | — |
Math Gemma 4 31B IT leads
Gemma 4 31B IT: 43.2 (#81), Grok 3: 38.0 (#145)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 73.3% | 55.6% |
| LMArena Math | 1465 | 1391 |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Grok 3 leads
Gemma 4 31B IT: 37.9 (#151), Grok 3: 46.2 (#82)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| GPQA Diamond | 75.8% | 75.8% |
| Vectara Hallucination Rate | 7.4% | 5.8% |
| LMArena Expert | 1465 | 1421 |
| SimpleQA Verified | 10.4% | — |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| GPQA (HELM) | — | 65% |
Multimodal Not comparable
Gemma 4 31B IT: 41.6 (#34), Grok 3: —
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| LMArena Vision | 1277 | — |
| LMArena Document | 1425 | — |
Multilingual Gemma 4 31B IT leads
Gemma 4 31B IT: 53.8 (#57), Grok 3: 52.3 (#87)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| LMArena Non-English | 1431 | 1410 |
| LMArena Chinese | 1476 | 1448 |
| LMArena French | 1435 | 1460 |
| LMArena Russian | 1460 | 1416 |
| LMArena Spanish | 1444 | 1417 |
| LMArena German | — | 1431 |
| LMArena Japanese | — | 1387 |
| LMArena Korean | — | 1373 |
Instruction Following Too close to call
Gemma 4 31B IT: 75.5 (#61), Grok 3: 75.0 (#73)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1433 | 1409 |
| IFEval | — | 88.4% |
Long Context Gemma 4 31B IT leads
Gemma 4 31B IT: 44.2 (#71), Grok 3: 38.7 (#192)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1446 | 1439 |
| Fiction.LiveBench | — | 58.3% |
Writing & Preference Gemma 4 31B IT leads
Gemma 4 31B IT: 60.5 (#96), Grok 3: 55.8 (#141)
| Benchmark | Gemma 4 31B IT | Grok 3 |
|---|---|---|
| LMArena Text | 1443 | 1426 |
| LMArena Creative Writing | 1415 | 1414 |
| EQ-Bench Creative Writing | 1368 | 1186 |
| LMArena Multi-Turn | 1452 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| WildBench | — | 84.9% |
| EQ-Bench 4 | 1120 | — |
Frequently asked questions
Is Gemma 4 31B IT better than Grok 3?
Gemma 4 31B IT is the stronger model overall, scoring 43.5 to 39.9 on the Noometry Index.
Is Gemma 4 31B IT or Grok 3 better for coding?
They score almost the same on coding (42.3 vs 41.9); test both on your own repository before choosing.
How many benchmarks do Gemma 4 31B IT and Grok 3 share?
21 benchmarks have published results for both models. Gemma 4 31B IT has 35 scored results on Noometry and Grok 3 has 40.