# Gemma 3 12B vs Mistral Medium 3.1

> Gemma 3 12B and Mistral Medium 3.1 score almost the same on the Noometry Index (32.1 vs 31.9), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/gemma-3-12b-vs-mistral-medium-3-1
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Gemma 3 12B scores higher in 1 category and Mistral Medium 3.1 in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mistral Medium 3.1 leads 55.5 to 47.5.
- Gemma 3 12B is cheaper at $0.05 / $0.15 per million input/output tokens, against $0.40 / $2 for Mistral Medium 3.1.
- Gemma 3 12B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| Provider | Google | Mistral AI |
| Noometry Index | 32.1 | 31.9 |
| Rank | 262 | 266 |
| Context | 131K | 131K |
| Input $/M | $0.05 | $0.40 |
| Output $/M | $0.15 | $2 |
| Weights | Open | Proprietary |

## Coding

- Gemma 3 12B: 31.7 (#280)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| SciCode | 17.4% | — |
| LMArena Coding | 1281 | — |

## Agentic & Tool Use

- Gemma 3 12B: 25.5 (#108)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 30.4% | — |

## Reasoning

- Gemma 3 12B: 15.7 (#313)
- Mistral Medium 3.1: 10.6 (#341)

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| NYT Connections (extended) | — | 6.5% |
| CritPt | 0% | — |
| Chess Puzzles | 0% | — |
| Thematic Generalization | — | 20.3% |
| LMArena Hard Prompts | 1309 | — |
| DTBench | 48.8% | — |
| LMCA | 4.5% | — |
| Epoch Capabilities Index | 123.5 | — |

## Math

- Gemma 3 12B: 22.3 (#279)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.7% | — |
| LMArena Math | 1307 | — |

## Knowledge

- Gemma 3 12B: 26.5 (#257)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| GPQA Diamond | 39.5% | — |
| Vectara Hallucination Rate | 4.4% | — |
| LMArena Expert | 1248 | — |

## Multimodal

- Gemma 3 12B: —
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| MindCube | 46.7% | — |

## Multilingual

- Gemma 3 12B: 45.7 (#165)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| LMArena Non-English | 1318 | — |
| LMArena German | 1370 | — |
| LMArena Russian | 1335 | — |

## Instruction Following

- Gemma 3 12B: 68.6 (#186)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| LMArena Instruction Following | 1299 | — |

## Long Context

- Gemma 3 12B: 40.0 (#162)
- Mistral Medium 3.1: —

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| LMArena Longer Query | 1317 | — |

## Writing & Preference

- Gemma 3 12B: 47.5 (#209)
- Mistral Medium 3.1: 55.5 (#145)

| Benchmark | Gemma 3 12B | Mistral Medium 3.1 |
|---|---|---|
| EQ-Bench Creative Writing | 1126 | 1476 |
| LMArena Text | 1334 | — |
| LMArena Creative Writing | 1331 | — |
| LMArena Multi-Turn | 1334 | — |

## FAQ

### Is Gemma 3 12B better than Mistral Medium 3.1?

Gemma 3 12B and Mistral Medium 3.1 score almost the same on the Noometry Index (32.1 vs 31.9), so choose on price, context window or the category you care about most.

### Which is cheaper, Gemma 3 12B or Mistral Medium 3.1?

Gemma 3 12B is cheaper. It lists at $0.05 per million input tokens and $0.15 per million output tokens; Mistral Medium 3.1 lists at $0.40 and $2.

### Which has the bigger context window?

Both accept 131K tokens.

### How many benchmarks do Gemma 3 12B and Mistral Medium 3.1 share?

1 benchmark has published results for both models. Gemma 3 12B has 24 scored results on Noometry and Mistral Medium 3.1 has 3.