# Gemini 1.5 Flash (May 2024) vs Mistral Medium 3.5

> Mistral Medium 3.5 is the stronger model overall, scoring 39.6 to 32.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-mistral-medium-3-5
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 1 category and Mistral Medium 3.5 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Mistral Medium 3.5 leads 36.4 to 20.8.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| Provider | Google | Mistral AI |
| Noometry Index | 32.9 | 39.6 |
| Rank | 240 | 151 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Gemini 1.5 Flash (May 2024): 33.9 (#233)
- Mistral Medium 3.5: 35.7 (#208)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Coding | 1262 | 1461 |
| LMArena WebDev | — | 1263 |
| WeirdML | 24.9% | — |
| BigCodeBench Instruct | 43.5% | — |
| BigCodeBench Complete | 55.1% | — |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |

## Agentic & Tool Use

- Gemini 1.5 Flash (May 2024): 26.3 (#97)
- Mistral Medium 3.5: —

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| BALROG | 14.6% | — |

## Reasoning

- Gemini 1.5 Flash (May 2024): 20.8 (#212)
- Mistral Medium 3.5: 16.6 (#290)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1436 |
| Epoch Capabilities Index | 129.37 | 141.42 |
| Kagi LLM Benchmark | — | 41.4% |
| NYT Connections (extended) | — | 12.9% |
| DTBench | 53.8% | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 20.8 (#274)
- Mistral Medium 3.5: 36.4 (#113)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Math | 1269 | 1432 |
| OTIS Mock AIME 2024-2025 | 16.3% | — |
| Omni-MATH | 30.4% | — |
| MATH Level 5 | 61.9% | — |
| FrontierMath (Feb 2025 set) | 0% | — |
| GSM8K | 82.4% | — |

## Knowledge

- Gemini 1.5 Flash (May 2024): 26.2 (#253)
- Mistral Medium 3.5: 39.3 (#123)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Expert | 1233 | 1431 |
| GPQA Diamond | 47.3% | — |
| MMLU-Pro | 67.8% | — |
| GPQA (HELM) | 43.7% | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 35.3 (#76)
- Mistral Medium 3.5: 37.6 (#64)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Vision | 1141 | 1222 |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |

## Multilingual

- Gemini 1.5 Flash (May 2024): 43.1 (#184)
- Mistral Medium 3.5: 52.1 (#93)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Non-English | 1278 | 1405 |
| LMArena Chinese | 1295 | 1443 |
| LMArena French | 1257 | 1448 |
| LMArena German | 1262 | 1453 |
| LMArena Korean | 1220 | 1387 |
| LMArena Russian | 1288 | 1396 |
| LMArena Spanish | 1242 | 1406 |
| LMArena Japanese | 1252 | — |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 67.0 (#199)
- Mistral Medium 3.5: 74.7 (#87)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Instruction Following | 1258 | 1414 |
| IFEval | 83.1% | — |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#182)
- Mistral Medium 3.5: 43.2 (#101)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Longer Query | 1284 | 1414 |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.9 (#190)
- Mistral Medium 3.5: 58.6 (#113)

| Benchmark | Gemini 1.5 Flash (May 2024) | Mistral Medium 3.5 |
|---|---|---|
| LMArena Text | 1287 | 1421 |
| LMArena Creative Writing | 1285 | 1372 |
| LMArena Multi-Turn | 1253 | 1423 |
| WildBench | 79.2% | — |
| EQ-Bench 4 | — | 993 |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than Mistral Medium 3.5?

Mistral Medium 3.5 is the stronger model overall, scoring 39.6 to 32.9 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or Mistral Medium 3.5 better for coding?

Mistral Medium 3.5 scores higher on coding benchmarks: 35.7 versus 33.9 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and Mistral Medium 3.5 share?

18 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and Mistral Medium 3.5 has 22.