# Gemini 3.1 Flash Lite vs Grok-2 (Dec 2024)

> Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 33.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-1-flash-lite-vs-grok-2
- Last updated: 2026-10-10
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 8 categories and Grok-2 (Dec 2024) in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 3.1 Flash Lite leads 39.5 to 19.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 80% for Gemini 3.1 Flash Lite and 11.5% for Grok-2 (Dec 2024).

## Snapshot

| | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 40.4 | 33.4 |
| Rank | 141 | 233 |
| Context | 1.05M | — |
| Input $/M | $0.25 | — |
| Output $/M | $1.50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3.1 Flash Lite: 37.5 (#179)
- Grok-2 (Dec 2024): 32.9 (#254)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| WeirdML | 52.2% | 22.2% |
| LMArena Coding | 1400 | 1288 |
| LMArena WebDev | 1256 | — |
| SciCode | 41.9% | — |
| LiveBench Coding | — | 46.4% |
| ALE-Bench | 797.73 | — |

## Agentic & Tool Use

- Gemini 3.1 Flash Lite: 29.9 (#72)
- Grok-2 (Dec 2024): —

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| DeepResearch Bench | 37.3% | — |

## Reasoning

- Gemini 3.1 Flash Lite: 22.3 (#181)
- Grok-2 (Dec 2024): 16.4 (#294)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Hard Prompts | 1407 | 1272 |
| DTBench | 76.8% | 65.2% |
| Epoch Capabilities Index | 144.45 | 130.48 |
| SimpleBench | — | 22.7% |
| Kagi LLM Benchmark | 67.2% | — |
| NYT Connections (extended) | 8.2% | — |
| CritPt | 1.1% | — |
| Chess Puzzles | 25% | — |
| EnigmaEval | 3% | — |
| Thematic Generalization | 63.3% | — |
| LiveBench Reasoning | — | 54.8% |
| LiveBench Data Analysis | — | 54.5% |
| LMCA | 35% | — |
| ForecastBench | 54.4 | — |
| LiveBench | — | 54.3% |

## Math

- Gemini 3.1 Flash Lite: 39.5 (#82)
- Grok-2 (Dec 2024): 19.6 (#278)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 80% | 11.5% |
| LMArena Math | 1427 | 1283 |
| FrontierMath (Tiers 1-3) | 27.7% | — |
| LiveBench Math | — | 54.9% |
| MATH Level 5 | — | 63.5% |
| FrontierMath (Feb 2025 set) | — | 0.7% |

## Knowledge

- Gemini 3.1 Flash Lite: 41.7 (#95)
- Grok-2 (Dec 2024): 29.8 (#225)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 81.8% | 53.8% |
| LMArena Expert | 1397 | 1254 |
| Humanity's Last Exam | 8.6% | — |
| Confabulations | — | 20.1% |
| Vectara Hallucination Rate | 8.2% | — |

## Multimodal

- Gemini 3.1 Flash Lite: 38.7 (#57)
- Grok-2 (Dec 2024): —

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Vision | 1240 | — |

## Multilingual

- Gemini 3.1 Flash Lite: 52.5 (#82)
- Grok-2 (Dec 2024): 43.3 (#183)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | 1410 | 1282 |
| LMArena Chinese | 1461 | 1289 |
| LMArena French | 1423 | 1317 |
| LMArena German | 1429 | 1287 |
| LMArena Japanese | 1411 | 1244 |
| LMArena Korean | 1393 | 1237 |
| LMArena Russian | 1420 | 1286 |
| LMArena Spanish | 1420 | 1281 |

## Instruction Following

- Gemini 3.1 Flash Lite: 72.9 (#126)
- Grok-2 (Dec 2024): 67.1 (#197)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Instruction Following | 1376 | 1270 |
| LiveBench Instruction Following | — | 69.6% |

## Long Context

- Gemini 3.1 Flash Lite: 42.5 (#117)
- Grok-2 (Dec 2024): 38.7 (#186)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | 1394 | 1276 |

## Writing & Preference

- Gemini 3.1 Flash Lite: 61.0 (#90)
- Grok-2 (Dec 2024): 48.8 (#192)

| Benchmark | Gemini 3.1 Flash Lite | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | 1416 | 1305 |
| LMArena Creative Writing | 1401 | 1284 |
| LMArena Multi-Turn | 1417 | 1290 |
| Short-Story Creative Writing | — | 63.6% |
| LiveBench Language | — | 45.6% |

## FAQ

### Is Gemini 3.1 Flash Lite better than Grok-2 (Dec 2024)?

Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 33.4 on the Noometry Index.

### Is Gemini 3.1 Flash Lite or Grok-2 (Dec 2024) better for coding?

Gemini 3.1 Flash Lite scores higher on coding benchmarks: 37.5 versus 32.9 in the Noometry coding category.

### How many benchmarks do Gemini 3.1 Flash Lite and Grok-2 (Dec 2024) share?

22 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Grok-2 (Dec 2024) has 34.