# Mistral Medium vs Mistral Medium 3.1

> Mistral Medium is the stronger model overall, scoring 36.3 to 31.9 on the Noometry Index. Mistral Medium 3.1 costs 3.8× less per token, which makes it the better buy when Mistral Medium's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/mistral-medium-vs-mistral-medium-3-1
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Mistral Medium leads 24.0 to 10.6.
- Mistral Medium 3.1 is cheaper at $0.40 / $2 per million input/output tokens, against $1.50 / $7.50 for Mistral Medium.
- Mistral Medium accepts more context: 262K tokens versus 131K.
- Mistral Medium has downloadable open weights; the other is API-only.

## Snapshot

| | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 36.3 | 31.9 |
| Rank | 218 | 266 |
| Context | 262K | 131K |
| Input $/M | $1.50 | $0.40 |
| Output $/M | $7.50 | $2 |
| Weights | Open | Proprietary |

## Coding

- Mistral Medium: 34.2 (#243)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| FrontierCode | 8% | — |
| SciCode | 40.2% | — |
| WeirdML | 43.7% | — |
| LMArena Coding | 1434 | — |
| ALE-Bench | 763.98 | — |

## Agentic & Tool Use

- Mistral Medium: 28.3 (#90)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 37.7% | — |

## Reasoning

- Mistral Medium: 24.0 (#167)
- Mistral Medium 3.1: 10.6 (#341)

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| Kagi LLM Benchmark | 50% | — |
| NYT Connections (extended) | — | 6.5% |
| CritPt | 0% | — |
| Thematic Generalization | — | 20.3% |
| LMArena Hard Prompts | 1426 | — |
| DTBench | 75.5% | — |
| LMCA | 26.1% | — |
| Surface Evolver Bench | 26.9% | — |

## Math

- Mistral Medium: 28.1 (#245)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 32.2% | — |
| ProofBench | 9% | — |
| LMArena Math | 1408 | — |
| MATH Level 5 | 81.6% | — |
| FrontierMath (Feb 2025 set) | 0.3% | — |

## Knowledge

- Mistral Medium: 25.0 (#265)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| GPQA Diamond | 59.5% | — |
| Humanity's Last Exam | 4.5% | — |
| Vectara Hallucination Rate | 22.7% | — |
| LMArena Expert | 1408 | — |

## Multimodal

- Mistral Medium: 35.3 (#88)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| LMArena Vision | 1172 | — |

## Multilingual

- Mistral Medium: 52.1 (#91)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| LMArena Non-English | 1408 | — |
| LMArena Chinese | 1447 | — |
| LMArena French | 1459 | — |
| LMArena German | 1432 | — |
| LMArena Japanese | 1378 | — |
| LMArena Korean | 1380 | — |
| LMArena Russian | 1411 | — |
| LMArena Spanish | 1433 | — |

## Instruction Following

- Mistral Medium: 73.7 (#116)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| LMArena Instruction Following | 1398 | — |

## Long Context

- Mistral Medium: 42.9 (#114)
- Mistral Medium 3.1: —

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| LMArena Longer Query | 1406 | — |

## Writing & Preference

- Mistral Medium: 60.0 (#103)
- Mistral Medium 3.1: 55.5 (#145)

| Benchmark | Mistral Medium | Mistral Medium 3.1 |
|---|---|---|
| LMArena Text | 1424 | — |
| LMArena Creative Writing | 1391 | — |
| Short-Story Creative Writing | 77.3% | — |
| EQ-Bench Creative Writing | — | 1476 |
| LMArena Multi-Turn | 1418 | — |

## FAQ

### Is Mistral Medium better than Mistral Medium 3.1?

Mistral Medium is the stronger model overall, scoring 36.3 to 31.9 on the Noometry Index. Mistral Medium 3.1 costs 3.8× less per token, which makes it the better buy when Mistral Medium's lead doesn't matter for your workload.

### Which is cheaper, Mistral Medium or Mistral Medium 3.1?

Mistral Medium 3.1 is cheaper. It lists at $0.40 per million input tokens and $2 per million output tokens; Mistral Medium lists at $1.50 and $7.50.

### Which has the bigger context window?

Mistral Medium does, with 262K tokens against 131K.

### How many benchmarks do Mistral Medium and Mistral Medium 3.1 share?

0 benchmarks have published results for both models. Mistral Medium has 36 scored results on Noometry and Mistral Medium 3.1 has 3.