Model comparison
Gemini 3.1 Pro Preview vs Grok-3 mini
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 41.2 on the Noometry Index.
Last verified . 24 shared benchmarks.
GoogleSummary
- They share 24 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 7 categories and Grok-3 mini in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 13.6.
- The biggest single-benchmark swing is ARC-AGI-1: 98% for Gemini 3.1 Pro Preview and 16.5% for Grok-3 mini.
Side by side
| Gemini 3.1 Pro Preview | Grok-3 mini | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 56.7 | 41.2 |
| Released | 2026-02-19 | 2025-04-09 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $12 | — |
| Results tracked | 71 | 35 |
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Category by category
Coding Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 42.5 (#99), Grok-3 mini: 40.8 (#131)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| WeirdML | 72.1% | 42.6% |
| LMArena Coding | 1484 | 1379 |
| SWE-bench Verified | 75.6% | — |
| DeepSWE | 11.7% | — |
| Aider Polyglot | — | 49.3% |
| LMArena WebDev | 1447 | — |
| SciCode | 58.9% | — |
| GSO | 22.6% | — |
| MirrorCode | 8.9% | — |
| ALE-Bench | 1,161 | — |
| AlgoTune | 2.02 | — |
Agentic & Tool Use Not comparable
Gemini 3.1 Pro Preview: 37.7 (#34), Grok-3 mini: —
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| Terminal-Bench | 80.2% | — |
| APEX-Agents | 35.3% | — |
| τ²-bench Banking | 26% | — |
| DeepResearch Bench | 47.8% | — |
| PostTrainBench | 22% | — |
| BALROG | 57% | — |
| ExploitBench | 26.1% | — |
| GBAEval | 0.8% | — |
| GDP.pdf | 17% | — |
| LMArena Search | 1211 | — |
| METR Time Horizons | 77% | — |
| Vending-Bench 2 | 3,774 | — |
Reasoning Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 71.7 (#12), Grok-3 mini: 13.6 (#334)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| ARC-AGI-2 | 77.1% | 0.4% |
| ARC-AGI-1 | 98% | 16.5% |
| LMArena Hard Prompts | 1485 | 1375 |
| Epoch Capabilities Index | 154.77 | 140.35 |
| SimpleBench | 79.6% | — |
| Kagi LLM Benchmark | — | 61.3% |
| NYT Connections (extended) | 97.4% | — |
| CritPt | 17.7% | — |
| Chess Puzzles | 55% | — |
| EnigmaEval | 36.8% | — |
| Thematic Generalization | 79.4% | — |
| EBR-Bench | 14.3% | — |
| Mystery Game Puzzles | 34% | — |
| DTBench | 97.1% | — |
| LMCA | 53.8% | — |
| ForecastBench | 59 | — |
Math Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 62.1 (#34), Grok-3 mini: 42.1 (#85)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 95.6% | 77.8% |
| LMArena Math | 1485 | 1386 |
| FrontierMath (Feb 2025 set) | 36.9% | 5.9% |
| FrontierMath (Tiers 1-3) | 59.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 86.5% | — |
| ProofBench | 26% | — |
| Omni-MATH | — | 31.8% |
| MATH Level 5 | — | 90.9% |
| FrontierMath Tier 4 (v1) | 16.7% | — |
Knowledge Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 71.8 (#3), Grok-3 mini: 46.4 (#81)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| GPQA Diamond | 94.4% | 76.3% |
| LMArena Expert | 1485 | 1395 |
| Humanity's Last Exam | 46.4% | — |
| SimpleQA Verified | 73.5% | — |
| MMLU-Pro | — | 79.9% |
| Confabulations | — | 10.8% |
| Vectara Hallucination Rate | 10.4% | — |
| GPQA (HELM) | — | 67.5% |
Multimodal Not comparable
Gemini 3.1 Pro Preview: 37.9 (#69), Grok-3 mini: —
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| LMArena Vision | 1296 | — |
| Blueprint-Bench 2 | 26.5% | — |
| Furniture Assembly | 26.7% | — |
| LMArena Document | 1444 | — |
Multilingual Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 57.0 (#12), Grok-3 mini: 48.1 (#145)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| LMArena Non-English | 1477 | 1352 |
| LMArena Chinese | 1529 | 1387 |
| LMArena French | 1487 | 1357 |
| LMArena German | 1491 | 1349 |
| LMArena Japanese | 1493 | 1342 |
| LMArena Korean | 1455 | 1335 |
| LMArena Russian | 1498 | 1353 |
| LMArena Spanish | 1479 | 1381 |
Instruction Following Grok-3 mini leads
Gemini 3.1 Pro Preview: 77.0 (#32), Grok-3 mini: 78.5 (#9)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| LMArena Instruction Following | 1466 | 1357 |
| IFEval | — | 95.1% |
Long Context Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 47.4 (#18), Grok-3 mini: 41.0 (#147)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| LMArena Longer Query | 1483 | 1372 |
| Fiction.LiveBench | — | 66.7% |
| CL-bench | 20.8% | — |
| CL-bench Life | 16.9% | — |
Writing & Preference Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 66.1 (#37), Grok-3 mini: 52.5 (#169)
| Benchmark | Gemini 3.1 Pro Preview | Grok-3 mini |
|---|---|---|
| LMArena Text | 1481 | 1370 |
| LMArena Creative Writing | 1482 | 1342 |
| LMArena Multi-Turn | 1488 | 1355 |
| Short-Story Creative Writing | — | 73.5% |
| EQ-Bench Creative Writing | 1491 | — |
| WildBench | — | 65.1% |
| EQ-Bench 4 | 1142 | — |
Frequently asked questions
Is Gemini 3.1 Pro Preview better than Grok-3 mini?
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 41.2 on the Noometry Index.
Is Gemini 3.1 Pro Preview or Grok-3 mini better for coding?
Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.5 versus 40.8 in the Noometry coding category.
How many benchmarks do Gemini 3.1 Pro Preview and Grok-3 mini share?
24 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Grok-3 mini has 35.