# Gemini 3.1 Flash Lite vs Grok 4

> Grok 4 is the stronger model overall, scoring 48.1 to 40.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-1-flash-lite-vs-grok-4
- Last updated: 2026-10-12
- Shared benchmarks: 26

## Summary

- They share 26 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 3 categories and Grok 4 in 7 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 leads 63.1 to 42.5.
- The biggest single-benchmark swing is DeepResearch Bench: 37.3% for Gemini 3.1 Flash Lite and 47.3% for Grok 4.

## Snapshot

| | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 40.8 | 48.1 |
| Rank | 144 | 56 |
| Context | 1.05M | — |
| Input $/M | $0.25 | — |
| Output $/M | $1.50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3.1 Flash Lite: 37.8 (#188)
- Grok 4: 50.3 (#46)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| WeirdML | 52.2% | 45.7% |
| LMArena Coding | 1400 | 1408 |
| Aider Polyglot | — | 79.6% |
| LMArena WebDev | 1256 | — |
| SciCode | 41.9% | — |
| ALE-Bench | 797.73 | — |

## Agentic & Tool Use

- Gemini 3.1 Flash Lite: 30.2 (#79)
- Grok 4: 32.3 (#68)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| DeepResearch Bench | 37.3% | 47.3% |
| Terminal-Bench | — | 27.2% |
| Berkeley Function Calling Leaderboard | — | 63% |
| GDPval | — | 21.1% |
| Cybench | — | 43% |
| BALROG | — | 43.6% |
| LMArena Search | — | 1142 |
| METR Time Horizons | — | 66.6% |

## Reasoning

- Gemini 3.1 Flash Lite: 22.9 (#186)
- Grok 4: 36.7 (#65)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| Kagi LLM Benchmark | 67.2% | 73.6% |
| Chess Puzzles | 25% | 28% |
| LMArena Hard Prompts | 1407 | 1409 |
| Epoch Capabilities Index | 144.47 | 146.44 |
| ForecastBench | 54.4 | 60.9 |
| ARC-AGI-2 | — | 16% |
| SimpleBench | — | 60.5% |
| NYT Connections (extended) | 8.2% | — |
| ARC-AGI-1 | — | 66.7% |
| CritPt | 1.1% | — |
| EnigmaEval | 3% | — |
| Thematic Generalization | 63.3% | — |
| DTBench | 76.8% | — |
| LMCA | 35% | — |

## Math

- Gemini 3.1 Flash Lite: 40.7 (#90)
- Grok 4: 48.4 (#64)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 80% | 84% |
| LMArena Math | 1428 | 1422 |
| FrontierMath (Tiers 1-3) | 27.7% | — |
| Omni-MATH | — | 60.3% |
| FrontierMath (Feb 2025 set) | — | 19.7% |
| FrontierMath Tier 4 (v1) | — | 2.1% |

## Knowledge

- Gemini 3.1 Flash Lite: 41.9 (#104)
- Grok 4: 53.8 (#55)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| GPQA Diamond | 81.8% | 87% |
| LMArena Expert | 1398 | 1415 |
| Humanity's Last Exam | 8.6% | — |
| MMLU-Pro | — | 85.1% |
| Confabulations | — | 12.4% |
| Vectara Hallucination Rate | 8.2% | — |
| GPQA (HELM) | — | 72.7% |

## Multimodal

- Gemini 3.1 Flash Lite: 39.4 (#60)
- Grok 4: 33.7 (#94)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| LMArena Vision | 1240 | 1210 |
| GeoBench | — | 45% |

## Multilingual

- Gemini 3.1 Flash Lite: 52.3 (#86)
- Grok 4: 51.8 (#103)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| LMArena Non-English | 1411 | 1403 |
| LMArena Chinese | 1461 | 1427 |
| LMArena French | 1424 | 1418 |
| LMArena German | 1429 | 1429 |
| LMArena Japanese | 1413 | 1394 |
| LMArena Korean | 1392 | 1377 |
| LMArena Russian | 1420 | 1410 |
| LMArena Spanish | 1421 | 1420 |

## Instruction Following

- Gemini 3.1 Flash Lite: 72.7 (#131)
- Grok 4: 79.2 (#5)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| LMArena Instruction Following | 1377 | 1387 |
| IFEval | — | 94.9% |

## Long Context

- Gemini 3.1 Flash Lite: 42.5 (#122)
- Grok 4: 63.1 (#4)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| LMArena Longer Query | 1394 | 1409 |
| Fiction.LiveBench | — | 94.4% |

## Writing & Preference

- Gemini 3.1 Flash Lite: 60.9 (#94)
- Grok 4: 58.5 (#116)

| Benchmark | Gemini 3.1 Flash Lite | Grok 4 |
|---|---|---|
| LMArena Text | 1416 | 1411 |
| LMArena Creative Writing | 1401 | 1397 |
| LMArena Multi-Turn | 1417 | 1416 |
| Short-Story Creative Writing | — | 76.9% |
| WildBench | — | 79.7% |

## FAQ

### Is Gemini 3.1 Flash Lite better than Grok 4?

Grok 4 is the stronger model overall, scoring 48.1 to 40.8 on the Noometry Index.

### Is Gemini 3.1 Flash Lite or Grok 4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 37.8 in the Noometry coding category.

### How many benchmarks do Gemini 3.1 Flash Lite and Grok 4 share?

26 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Grok 4 has 48.