# Mistral vs Mistral Small 3.1

> Mistral Small 3.1 is the stronger model overall, scoring 31.7 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-vs-mistral-small-3-1
- Last updated: 2026-10-11
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Mistral scores higher in 2 categories and Mistral Small 3.1 in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in instruction following, where Mistral Small 3.1 leads 63.6 to 52.6.
- The biggest single-benchmark swing is MMLU-Pro: 27.7% for Mistral and 61% for Mistral Small 3.1.
- Mistral Small 3.1 has downloadable open weights; the other is API-only.

## Snapshot

| | Mistral | Mistral Small 3.1 |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 29.9 | 31.7 |
| Rank | 303 | 269 |
| Context | — | 128K |
| Input $/M | — | $0.35 |
| Output $/M | — | $0.56 |
| Weights | Proprietary | Open |

## Coding

- Mistral: 33.8 (#250)
- Mistral Small 3.1: 38.3 (#179)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1162 | 1309 |

## Reasoning

- Mistral: 22.2 (#200)
- Mistral Small 3.1: 19.7 (#254)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1149 | 1278 |
| Chess Puzzles | — | 1% |
| Epoch Capabilities Index | — | 127.48 |

## Math

- Mistral: 22.3 (#278)
- Mistral Small 3.1: 14.7 (#301)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| Omni-MATH | 7.2% | 24.8% |
| LMArena Math | 1180 | 1262 |
| OTIS Mock AIME 2024-2025 | — | 3.9% |

## Knowledge

- Mistral: 16.6 (#288)
- Mistral Small 3.1: 22.6 (#271)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| MMLU-Pro | 27.7% | 61% |
| GPQA (HELM) | 30.3% | 39.2% |
| LMArena Expert | 1125 | 1257 |
| GPQA Diamond | — | 41.9% |

## Multimodal

- Mistral: —
- Mistral Small 3.1: 33.2 (#99)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |

## Multilingual

- Mistral: 32.8 (#254)
- Mistral Small 3.1: 41.2 (#209)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1129 | 1255 |
| LMArena Chinese | 1109 | 1253 |
| LMArena French | 1180 | 1273 |
| LMArena German | 1155 | 1266 |
| LMArena Japanese | 1013 | 1208 |
| LMArena Korean | 1032 | 1206 |
| LMArena Russian | 1168 | 1263 |
| LMArena Spanish | 1143 | 1283 |

## Instruction Following

- Mistral: 52.6 (#288)
- Mistral Small 3.1: 63.6 (#230)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| IFEval | 56.8% | 75% |
| LMArena Instruction Following | 1152 | 1264 |

## Long Context

- Mistral: 35.0 (#245)
- Mistral Small 3.1: 39.5 (#178)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1153 | 1299 |

## Writing & Preference

- Mistral: 37.0 (#260)
- Mistral Small 3.1: 37.0 (#259)

| Benchmark | Mistral | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1165 | 1277 |
| LMArena Creative Writing | 1158 | 1253 |
| WildBench | 66% | 78.8% |
| LMArena Multi-Turn | 1147 | 1270 |
| EQ-Bench Creative Writing | — | 761 |

## FAQ

### Is Mistral better than Mistral Small 3.1?

Mistral Small 3.1 is the stronger model overall, scoring 31.7 to 29.9 on the Noometry Index.

### Is Mistral or Mistral Small 3.1 better for coding?

Mistral Small 3.1 scores higher on coding benchmarks: 38.3 versus 33.8 in the Noometry coding category.

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

22 benchmarks have published results for both models. Mistral has 22 scored results on Noometry and Mistral Small 3.1 has 28.