# Gemini 3.5 Flash vs Mistral Medium

> Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 36.3 on the Noometry Index.

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

## Summary

- They share 29 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 9 categories and Mistral Medium in 1 category; 10 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 3.5 Flash leads 66.3 to 25.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 95.6% for Gemini 3.5 Flash and 32.2% for Mistral Medium.
- Mistral Medium is cheaper at $1.50 / $7.50 per million input/output tokens, against $1.50 / $9 for Gemini 3.5 Flash.
- Gemini 3.5 Flash accepts more context: 1.05M tokens versus 262K.
- Mistral Medium has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| Provider | Google | Mistral AI |
| Noometry Index | 54.2 | 36.3 |
| Rank | 32 | 218 |
| Context | 1.05M | 262K |
| Input $/M | $1.50 | $1.50 |
| Output $/M | $9 | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3.5 Flash: 49.4 (#49)
- Mistral Medium: 34.2 (#243)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| SciCode | 53.1% | 40.2% |
| WeirdML | 62.6% | 43.7% |
| LMArena Coding | 1492 | 1434 |
| ALE-Bench | 911.02 | 763.98 |
| SWE-bench Verified | 79.3% | — |
| DeepSWE | 37.4% | — |
| FrontierCode | — | 8% |
| LMArena WebDev | 1499 | — |

## Agentic & Tool Use

- Gemini 3.5 Flash: 24.7 (#114)
- Mistral Medium: 28.3 (#90)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| APEX-Agents | 27.5% | — |
| Berkeley Function Calling Leaderboard | — | 37.7% |
| GBAEval | 6.7% | — |
| GDP.pdf | 14% | — |
| Vending-Bench 2 | 5,396 | — |

## Reasoning

- Gemini 3.5 Flash: 62.8 (#18)
- Mistral Medium: 24.0 (#167)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| CritPt | 13.1% | 0% |
| LMArena Hard Prompts | 1488 | 1426 |
| DTBench | 94.7% | 75.5% |
| LMCA | 47.1% | 26.1% |
| Surface Evolver Bench | 58.1% | 26.9% |
| ARC-AGI-2 | 72.1% | — |
| SimpleBench | 76.7% | — |
| Kagi LLM Benchmark | — | 50% |
| NYT Connections (extended) | 92.6% | — |
| ARC-AGI-1 | 92.5% | — |
| Chess Puzzles | 50% | — |
| EnigmaEval | 25.4% | — |
| EBR-Bench | 4.8% | — |
| Mystery Game Puzzles | 32% | — |
| Epoch Capabilities Index | 154.46 | — |
| ForecastBench | 59 | — |

## Math

- Gemini 3.5 Flash: 60.7 (#36)
- Mistral Medium: 28.1 (#245)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 95.6% | 32.2% |
| ProofBench | 31% | 9% |
| LMArena Math | 1504 | 1408 |
| FrontierMath (Feb 2025 set) | 39% | 0.3% |
| FrontierMath (Tiers 1-3) | 62.8% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.3% | — |
| MATH Level 5 | — | 81.6% |
| FrontierMath Tier 4 (v1) | 14.6% | — |

## Knowledge

- Gemini 3.5 Flash: 66.3 (#11)
- Mistral Medium: 25.0 (#265)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| GPQA Diamond | 92.8% | 59.5% |
| LMArena Expert | 1495 | 1408 |
| Humanity's Last Exam | — | 4.5% |
| SimpleQA Verified | 66.2% | — |
| Vectara Hallucination Rate | — | 22.7% |

## Multimodal

- Gemini 3.5 Flash: 45.7 (#15)
- Mistral Medium: 35.3 (#88)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| LMArena Vision | 1310 | 1172 |
| Blueprint-Bench 2 | 33.6% | — |
| LMArena Document | 1463 | — |

## Multilingual

- Gemini 3.5 Flash: 57.0 (#13)
- Mistral Medium: 52.1 (#91)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| LMArena Non-English | 1476 | 1408 |
| LMArena Chinese | 1526 | 1447 |
| LMArena French | 1490 | 1459 |
| LMArena German | 1492 | 1432 |
| LMArena Japanese | 1486 | 1378 |
| LMArena Korean | 1451 | 1380 |
| LMArena Russian | 1493 | 1411 |
| LMArena Spanish | 1480 | 1433 |

## Instruction Following

- Gemini 3.5 Flash: 77.0 (#30)
- Mistral Medium: 73.7 (#116)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| LMArena Instruction Following | 1467 | 1398 |

## Long Context

- Gemini 3.5 Flash: 45.4 (#38)
- Mistral Medium: 42.9 (#114)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| LMArena Longer Query | 1482 | 1406 |

## Writing & Preference

- Gemini 3.5 Flash: 65.5 (#47)
- Mistral Medium: 60.0 (#103)

| Benchmark | Gemini 3.5 Flash | Mistral Medium |
|---|---|---|
| LMArena Text | 1482 | 1424 |
| LMArena Creative Writing | 1470 | 1391 |
| LMArena Multi-Turn | 1481 | 1418 |
| Short-Story Creative Writing | — | 77.3% |
| EQ-Bench 4 | 1087 | — |

## FAQ

### Is Gemini 3.5 Flash better than Mistral Medium?

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 36.3 on the Noometry Index.

### Which is cheaper, Gemini 3.5 Flash or Mistral Medium?

Mistral Medium is cheaper. It lists at $1.50 per million input tokens and $7.50 per million output tokens; Gemini 3.5 Flash lists at $1.50 and $9.

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

Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 34.2 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3.5 Flash does, with 1.05M tokens against 262K.

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

29 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Mistral Medium has 36.