# Gemini 2.5 Flash-Lite vs Grok 4

> Grok 4 is the stronger model overall, scoring 48.1 to 37.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-flash-lite-vs-grok-4
- Last updated: 2026-10-10
- Shared benchmarks: 28

## Summary

- They share 28 benchmarks with published results for both. Gemini 2.5 Flash-Lite scores higher in 0 categories and Grok 4 in 10 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 leads 63.1 to 33.3.
- The biggest single-benchmark swing is Fiction.LiveBench: 47.2% for Gemini 2.5 Flash-Lite and 94.4% for Grok 4.

## Snapshot

| | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 37.0 | 48.1 |
| Rank | 211 | 56 |
| Context | 1.05M | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.40 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 2.5 Flash-Lite: 38.5 (#173)
- Grok 4: 50.3 (#46)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| WeirdML | 35.2% | 45.7% |
| LMArena Coding | 1373 | 1408 |
| Aider Polyglot | — | 79.6% |
| ALE-Bench | 325.9 | — |

## Agentic & Tool Use

- Gemini 2.5 Flash-Lite: 28.0 (#96)
- Grok 4: 32.3 (#68)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 36.9% | 63% |
| Terminal-Bench | — | 27.2% |
| GDPval | — | 21.1% |
| Cybench | — | 43% |
| DeepResearch Bench | — | 47.3% |
| BALROG | — | 43.6% |
| LMArena Search | — | 1142 |
| METR Time Horizons | — | 66.6% |

## Reasoning

- Gemini 2.5 Flash-Lite: 22.2 (#205)
- Grok 4: 36.7 (#65)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| Kagi LLM Benchmark | 40.5% | 73.6% |
| LMArena Hard Prompts | 1377 | 1409 |
| Epoch Capabilities Index | 133.94 | 146.44 |
| ARC-AGI-2 | — | 16% |
| SimpleBench | — | 60.5% |
| ARC-AGI-1 | — | 66.7% |
| Chess Puzzles | — | 28% |
| DTBench | 62.8% | — |
| LMCA | 18.1% | — |
| ForecastBench | — | 60.9 |

## Math

- Gemini 2.5 Flash-Lite: 38.0 (#144)
- Grok 4: 48.4 (#64)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| Omni-MATH | 48% | 60.3% |
| LMArena Math | 1373 | 1422 |
| OTIS Mock AIME 2024-2025 | — | 84% |
| FrontierMath (Feb 2025 set) | — | 19.7% |
| FrontierMath Tier 4 (v1) | — | 2.1% |

## Knowledge

- Gemini 2.5 Flash-Lite: 32.5 (#210)
- Grok 4: 53.8 (#55)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| MMLU-Pro | 53.7% | 85.1% |
| GPQA (HELM) | 30.9% | 72.7% |
| LMArena Expert | 1373 | 1415 |
| GPQA Diamond | — | 87% |
| Confabulations | — | 12.4% |
| Vectara Hallucination Rate | 3.3% | — |

## Multimodal

- Gemini 2.5 Flash-Lite: 29.1 (#114)
- Grok 4: 33.7 (#94)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| LMArena Vision | 1198 | 1210 |
| GeoBench | — | 45% |
| VPCT | 30% | — |

## Multilingual

- Gemini 2.5 Flash-Lite: 49.3 (#134)
- Grok 4: 51.8 (#103)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| LMArena Non-English | 1369 | 1403 |
| LMArena Chinese | 1404 | 1427 |
| LMArena French | 1388 | 1418 |
| LMArena German | 1389 | 1429 |
| LMArena Japanese | 1359 | 1394 |
| LMArena Korean | 1360 | 1377 |
| LMArena Russian | 1373 | 1410 |
| LMArena Spanish | 1396 | 1420 |

## Instruction Following

- Gemini 2.5 Flash-Lite: 70.0 (#168)
- Grok 4: 79.2 (#5)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| IFEval | 81% | 94.9% |
| LMArena Instruction Following | 1367 | 1387 |

## Long Context

- Gemini 2.5 Flash-Lite: 33.3 (#262)
- Grok 4: 63.1 (#4)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| Fiction.LiveBench | 47.2% | 94.4% |
| LMArena Longer Query | 1373 | 1409 |

## Writing & Preference

- Gemini 2.5 Flash-Lite: 56.8 (#135)
- Grok 4: 58.5 (#116)

| Benchmark | Gemini 2.5 Flash-Lite | Grok 4 |
|---|---|---|
| LMArena Text | 1379 | 1411 |
| LMArena Creative Writing | 1367 | 1397 |
| WildBench | 81.8% | 79.7% |
| LMArena Multi-Turn | 1366 | 1416 |
| Short-Story Creative Writing | — | 76.9% |

## FAQ

### Is Gemini 2.5 Flash-Lite better than Grok 4?

Grok 4 is the stronger model overall, scoring 48.1 to 37.0 on the Noometry Index.

### Is Gemini 2.5 Flash-Lite or Grok 4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 38.5 in the Noometry coding category.

### How many benchmarks do Gemini 2.5 Flash-Lite and Grok 4 share?

28 benchmarks have published results for both models. Gemini 2.5 Flash-Lite has 33 scored results on Noometry and Grok 4 has 48.