# Gemini 3.6 Flash vs Grok 3

> Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 39.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-6-flash-vs-grok-3
- Last updated: 2026-10-11
- Shared benchmarks: 24

## Summary

- They share 24 benchmarks with published results for both. Gemini 3.6 Flash scores higher in 9 categories and Grok 3 in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.6 Flash leads 58.8 to 13.7.
- The biggest single-benchmark swing is ARC-AGI-1: 91.2% for Gemini 3.6 Flash and 5.5% for Grok 3.

## Snapshot

| | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 54.1 | 39.9 |
| Rank | 33 | 157 |
| Context | 1.05M | — |
| Input $/M | $0.75 | — |
| Output $/M | $3.75 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3.6 Flash: 50.0 (#48)
- Grok 3: 41.9 (#115)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| WeirdML | 56.1% | 37.2% |
| LMArena Coding | 1491 | 1432 |
| DeepSWE | 46.7% | — |
| FrontierCode | 34.4% | — |
| Aider Polyglot | — | 53.3% |
| LMArena WebDev | 1538 | — |
| SciCode | 52.7% | — |
| ALE-Bench | 715.52 | — |

## Agentic & Tool Use

- Gemini 3.6 Flash: 32.3 (#65)
- Grok 3: 30.5 (#76)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| APEX-Agents | 46.9% | — |
| BALROG | — | 29.5% |
| GDP.pdf | 14% | — |

## Reasoning

- Gemini 3.6 Flash: 58.8 (#22)
- Grok 3: 13.7 (#333)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| ARC-AGI-2 | 60.4% | 0% |
| ARC-AGI-1 | 91.2% | 5.5% |
| LMArena Hard Prompts | 1485 | 1434 |
| Epoch Capabilities Index | 154.25 | 138.33 |
| SimpleBench | — | 36.1% |
| Kagi LLM Benchmark | — | 61.3% |
| NYT Connections (extended) | 89% | — |
| CritPt | 10.6% | — |
| Chess Puzzles | 43% | — |
| Mystery Game Puzzles | 30% | — |
| DTBench | 95.5% | — |
| LMCA | 44.9% | — |

## Math

- Gemini 3.6 Flash: 57.3 (#40)
- Grok 3: 38.0 (#145)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 94.2% | 55.6% |
| LMArena Math | 1505 | 1391 |
| FrontierMath (Tiers 1-3) | 58.9% | — |
| FrontierMath Tier 4 | 22% | — |
| MathArena Final-Answer Competitions | 70.8% | — |
| ProofBench | 36% | — |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- Gemini 3.6 Flash: 67.8 (#8)
- Grok 3: 46.2 (#82)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| GPQA Diamond | 94.1% | 75.8% |
| LMArena Expert | 1488 | 1421 |
| SimpleQA Verified | 66.2% | — |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 5.8% |
| GPQA (HELM) | — | 65% |

## Multimodal

- Gemini 3.6 Flash: 38.5 (#64)
- Grok 3: —

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| LMArena Vision | 1298 | — |
| Blueprint-Bench 2 | 31.2% | — |
| Furniture Assembly | 23.3% | — |
| LMArena Document | 1456 | — |

## Multilingual

- Gemini 3.6 Flash: 56.5 (#19)
- Grok 3: 52.3 (#87)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| LMArena Non-English | 1469 | 1410 |
| LMArena Chinese | 1531 | 1448 |
| LMArena French | 1504 | 1460 |
| LMArena German | 1478 | 1431 |
| LMArena Japanese | 1476 | 1387 |
| LMArena Korean | 1431 | 1373 |
| LMArena Russian | 1487 | 1416 |
| LMArena Spanish | 1475 | 1417 |

## Instruction Following

- Gemini 3.6 Flash: 77.0 (#33)
- Grok 3: 75.0 (#73)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1466 | 1409 |
| IFEval | — | 88.4% |

## Long Context

- Gemini 3.6 Flash: 45.1 (#50)
- Grok 3: 38.7 (#192)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1474 | 1439 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- Gemini 3.6 Flash: 68.2 (#27)
- Grok 3: 55.8 (#141)

| Benchmark | Gemini 3.6 Flash | Grok 3 |
|---|---|---|
| LMArena Text | 1479 | 1426 |
| LMArena Creative Writing | 1465 | 1414 |
| EQ-Bench Creative Writing | 1604 | 1186 |
| LMArena Multi-Turn | 1481 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| WildBench | — | 84.9% |

## FAQ

### Is Gemini 3.6 Flash better than Grok 3?

Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 39.9 on the Noometry Index.

### Is Gemini 3.6 Flash or Grok 3 better for coding?

Gemini 3.6 Flash scores higher on coding benchmarks: 50.0 versus 41.9 in the Noometry coding category.

### How many benchmarks do Gemini 3.6 Flash and Grok 3 share?

24 benchmarks have published results for both models. Gemini 3.6 Flash has 46 scored results on Noometry and Grok 3 has 40.