# Gemini 1.5 Flash 8B vs Mistral Medium 3.5

> Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-mistral-medium-3-5
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 1 category and Mistral Medium 3.5 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Mistral Medium 3.5 leads 39.1 to 14.2.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| Provider | Google | Mistral AI |
| Noometry Index | 29.9 | 40.2 |
| Rank | 301 | 152 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- Mistral Medium 3.5: 36.0 (#213)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Coding | 1218 | 1461 |
| LMArena WebDev | — | 1264 |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- Mistral Medium 3.5: 17.3 (#295)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1436 |
| Kagi LLM Benchmark | — | 41.4% |
| NYT Connections (extended) | — | 12.9% |
| DTBench | 50% | — |
| Epoch Capabilities Index | — | 141.35 |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- Mistral Medium 3.5: 39.1 (#113)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Math | 1207 | 1431 |
| OTIS Mock AIME 2024-2025 | 4.6% | — |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- Mistral Medium 3.5: 40.0 (#126)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Expert | 1185 | 1432 |
| GPQA Diamond | 33% | — |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- Mistral Medium 3.5: 38.3 (#65)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Vision | 1044 | 1223 |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- Mistral Medium 3.5: 51.9 (#100)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Non-English | 1215 | 1404 |
| LMArena Chinese | 1231 | 1442 |
| LMArena French | 1234 | 1448 |
| LMArena German | 1206 | 1451 |
| LMArena Korean | 1140 | 1385 |
| LMArena Russian | 1236 | 1395 |
| LMArena Spanish | 1212 | 1409 |
| LMArena Japanese | 1150 | — |

## Instruction Following

- Gemini 1.5 Flash 8B: 62.8 (#236)
- Mistral Medium 3.5: 74.6 (#90)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Instruction Following | 1199 | 1415 |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- Mistral Medium 3.5: 43.2 (#103)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Longer Query | 1219 | 1415 |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- Mistral Medium 3.5: 58.5 (#117)

| Benchmark | Gemini 1.5 Flash 8B | Mistral Medium 3.5 |
|---|---|---|
| LMArena Text | 1226 | 1421 |
| LMArena Creative Writing | 1218 | 1374 |
| LMArena Multi-Turn | 1185 | 1423 |
| EQ-Bench 4 | — | 993 |

## FAQ

### Is Gemini 1.5 Flash 8B better than Mistral Medium 3.5?

Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or Mistral Medium 3.5 better for coding?

They score almost the same on coding (35.5 vs 36.0); test both on your own repository before choosing.

### How many benchmarks do Gemini 1.5 Flash 8B and Mistral Medium 3.5 share?

17 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and Mistral Medium 3.5 has 22.