# MiMo-V2-Pro vs Mistral Small 3.1

> MiMo-V2-Pro is the stronger model overall, scoring 43.0 to 31.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mimo-v2-pro-vs-mistral-small-3-1
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. MiMo-V2-Pro scores higher in 8 categories and Mistral Small 3.1 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2-Pro leads 62.8 to 37.0.
- Mistral Small 3.1 is cheaper at $0.35 / $0.56 per million input/output tokens, against $0.43 / $0.87 for MiMo-V2-Pro.
- MiMo-V2-Pro accepts more context: 1.05M tokens versus 128K.
- Mistral Small 3.1 has downloadable open weights; the other is API-only.

## Snapshot

| | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| Provider | Xiaomi | Mistral AI |
| Noometry Index | 43.0 | 31.7 |
| Rank | 103 | 269 |
| Context | 1.05M | 128K |
| Input $/M | $0.43 | $0.35 |
| Output $/M | $0.87 | $0.56 |
| Weights | Proprietary | Open |

## Coding

- MiMo-V2-Pro: 43.8 (#83)
- Mistral Small 3.1: 38.3 (#179)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1476 | 1309 |
| LMArena WebDev | 1433 | — |
| ALE-Bench | 785.17 | — |

## Reasoning

- MiMo-V2-Pro: 22.1 (#206)
- Mistral Small 3.1: 19.7 (#254)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1457 | 1278 |
| NYT Connections (extended) | 25.8% | — |
| Chess Puzzles | — | 1% |
| Thematic Generalization | 45.9% | — |
| Epoch Capabilities Index | — | 127.48 |

## Math

- MiMo-V2-Pro: 39.5 (#102)
- Mistral Small 3.1: 14.7 (#301)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Math | 1447 | 1262 |
| OTIS Mock AIME 2024-2025 | — | 3.9% |
| Omni-MATH | — | 24.8% |

## Knowledge

- MiMo-V2-Pro: 41.4 (#111)
- Mistral Small 3.1: 22.6 (#271)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Expert | 1478 | 1257 |
| GPQA Diamond | — | 41.9% |
| MMLU-Pro | — | 61% |
| GPQA (HELM) | — | 39.2% |

## Multimodal

- MiMo-V2-Pro: —
- Mistral Small 3.1: 33.2 (#99)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |

## Multilingual

- MiMo-V2-Pro: 52.7 (#81)
- Mistral Small 3.1: 41.2 (#209)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1416 | 1255 |
| LMArena Chinese | 1456 | 1253 |
| LMArena French | 1469 | 1273 |
| LMArena German | 1417 | 1266 |
| LMArena Japanese | 1366 | 1208 |
| LMArena Korean | 1400 | 1206 |
| LMArena Russian | 1427 | 1263 |
| LMArena Spanish | 1457 | 1283 |

## Instruction Following

- MiMo-V2-Pro: 76.0 (#49)
- Mistral Small 3.1: 63.6 (#230)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Instruction Following | 1445 | 1264 |
| IFEval | — | 75% |

## Long Context

- MiMo-V2-Pro: 41.5 (#138)
- Mistral Small 3.1: 39.5 (#178)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1455 | 1299 |
| CL-bench | 15.7% | — |
| CL-bench Life | 6.9% | — |

## Writing & Preference

- MiMo-V2-Pro: 62.8 (#70)
- Mistral Small 3.1: 37.0 (#259)

| Benchmark | MiMo-V2-Pro | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1436 | 1277 |
| LMArena Creative Writing | 1415 | 1253 |
| LMArena Multi-Turn | 1456 | 1270 |
| EQ-Bench Creative Writing | — | 761 |
| WildBench | — | 78.8% |

## FAQ

### Is MiMo-V2-Pro better than Mistral Small 3.1?

MiMo-V2-Pro is the stronger model overall, scoring 43.0 to 31.7 on the Noometry Index.

### Which is cheaper, MiMo-V2-Pro or Mistral Small 3.1?

Mistral Small 3.1 is cheaper. It lists at $0.35 per million input tokens and $0.56 per million output tokens; MiMo-V2-Pro lists at $0.43 and $0.87.

### Is MiMo-V2-Pro or Mistral Small 3.1 better for coding?

MiMo-V2-Pro scores higher on coding benchmarks: 43.8 versus 38.3 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2-Pro does, with 1.05M tokens against 128K.

### How many benchmarks do MiMo-V2-Pro and Mistral Small 3.1 share?

17 benchmarks have published results for both models. MiMo-V2-Pro has 23 scored results on Noometry and Mistral Small 3.1 has 28.