# Gemini 1.5 Flash (May 2024) vs Grok 3

> Grok 3 is the stronger model overall, scoring 39.9 to 33.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-grok-3
- Last updated: 2026-10-11
- Shared benchmarks: 29

## Summary

- They share 29 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 2 categories and Grok 3 in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 3 leads 46.2 to 26.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 16.3% for Gemini 1.5 Flash (May 2024) and 55.6% for Grok 3.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 33.2 | 39.9 |
| Rank | 246 | 157 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash (May 2024): 34.4 (#236)
- Grok 3: 41.9 (#115)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| WeirdML | 24.9% | 37.2% |
| LMArena Coding | 1261 | 1432 |
| Aider Polyglot | — | 53.3% |
| BigCodeBench Instruct | 43.5% | — |
| BigCodeBench Complete | 55.1% | — |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |

## Agentic & Tool Use

- Gemini 1.5 Flash (May 2024): 26.6 (#102)
- Grok 3: 30.5 (#76)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| BALROG | 14.6% | 29.5% |

## Reasoning

- Gemini 1.5 Flash (May 2024): 21.7 (#215)
- Grok 3: 13.7 (#333)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1434 |
| Epoch Capabilities Index | 129.36 | 138.33 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| Kagi LLM Benchmark | — | 61.3% |
| ARC-AGI-1 | — | 5.5% |
| DTBench | 53.8% | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 22.1 (#281)
- Grok 3: 38.0 (#145)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.3% | 55.6% |
| Omni-MATH | 30.4% | 46.4% |
| LMArena Math | 1269 | 1391 |
| MATH Level 5 | 61.9% | 88.7% |
| FrontierMath (Feb 2025 set) | 0% | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |
| GSM8K | 82.4% | — |

## Knowledge

- Gemini 1.5 Flash (May 2024): 26.2 (#260)
- Grok 3: 46.2 (#82)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| GPQA Diamond | 47.3% | 75.8% |
| MMLU-Pro | 67.8% | 78.8% |
| GPQA (HELM) | 43.7% | 65% |
| LMArena Expert | 1233 | 1421 |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 5.8% |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 36.0 (#81)
- Grok 3: —

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| LMArena Vision | 1141 | — |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |

## Multilingual

- Gemini 1.5 Flash (May 2024): 42.9 (#189)
- Grok 3: 52.3 (#87)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| LMArena Non-English | 1278 | 1410 |
| LMArena Chinese | 1295 | 1448 |
| LMArena French | 1258 | 1460 |
| LMArena German | 1262 | 1431 |
| LMArena Japanese | 1252 | 1387 |
| LMArena Korean | 1221 | 1373 |
| LMArena Russian | 1288 | 1416 |
| LMArena Spanish | 1243 | 1417 |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 66.8 (#205)
- Grok 3: 75.0 (#73)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| IFEval | 83.1% | 88.4% |
| LMArena Instruction Following | 1258 | 1409 |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#187)
- Grok 3: 38.7 (#192)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1284 | 1439 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.7 (#196)
- Grok 3: 55.8 (#141)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 3 |
|---|---|---|
| LMArena Text | 1287 | 1426 |
| LMArena Creative Writing | 1285 | 1414 |
| WildBench | 79.2% | 84.9% |
| LMArena Multi-Turn | 1253 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| EQ-Bench Creative Writing | — | 1186 |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than Grok 3?

Grok 3 is the stronger model overall, scoring 39.9 to 33.2 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or Grok 3 better for coding?

Grok 3 scores higher on coding benchmarks: 41.9 versus 34.4 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and Grok 3 share?

29 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and Grok 3 has 40.