# Longcat Flash Chat vs Mistral Medium 3.1

> Longcat Flash Chat is the stronger model overall, scoring 42.1 to 31.9 on the Noometry Index.

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

## Summary

- They share 1 benchmark with published results for both. Longcat Flash Chat scores higher in 2 categories and Mistral Medium 3.1 in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Longcat Flash Chat leads 19.0 to 10.6.
- The biggest single-benchmark swing is NYT Connections (extended): 17.7% for Longcat Flash Chat and 6.5% for Mistral Medium 3.1.
- Longcat Flash Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| Provider | Meituan | Mistral AI |
| Noometry Index | 42.1 | 31.9 |
| Rank | 120 | 266 |
| Context | — | 131K |
| Input $/M | — | $0.40 |
| Output $/M | — | $2 |
| Weights | Open | Proprietary |

## Coding

- Longcat Flash Chat: 43.5 (#87)
- Mistral Medium 3.1: —

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Coding | 1471 | — |

## Reasoning

- Longcat Flash Chat: 19.0 (#272)
- Mistral Medium 3.1: 10.6 (#341)

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| NYT Connections (extended) | 17.7% | 6.5% |
| Kagi LLM Benchmark | 43.9% | — |
| Thematic Generalization | — | 20.3% |
| LMArena Hard Prompts | 1440 | — |

## Math

- Longcat Flash Chat: 39.4 (#107)
- Mistral Medium 3.1: —

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Math | 1442 | — |

## Knowledge

- Longcat Flash Chat: 40.6 (#116)
- Mistral Medium 3.1: —

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Expert | 1454 | — |

## Multilingual

- Longcat Flash Chat: 51.9 (#101)
- Mistral Medium 3.1: —

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Non-English | 1404 | — |
| LMArena Chinese | 1465 | — |
| LMArena French | 1456 | — |
| LMArena German | 1408 | — |
| LMArena Japanese | 1373 | — |
| LMArena Korean | 1371 | — |
| LMArena Russian | 1395 | — |
| LMArena Spanish | 1445 | — |

## Instruction Following

- Longcat Flash Chat: 74.4 (#96)
- Mistral Medium 3.1: —

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Instruction Following | 1411 | — |

## Long Context

- Longcat Flash Chat: 43.5 (#93)
- Mistral Medium 3.1: —

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Longer Query | 1425 | — |

## Writing & Preference

- Longcat Flash Chat: 61.0 (#91)
- Mistral Medium 3.1: 55.5 (#145)

| Benchmark | Longcat Flash Chat | Mistral Medium 3.1 |
|---|---|---|
| LMArena Text | 1427 | — |
| LMArena Creative Writing | 1388 | — |
| EQ-Bench Creative Writing | — | 1476 |
| LMArena Multi-Turn | 1418 | — |

## FAQ

### Is Longcat Flash Chat better than Mistral Medium 3.1?

Longcat Flash Chat is the stronger model overall, scoring 42.1 to 31.9 on the Noometry Index.

### How many benchmarks do Longcat Flash Chat and Mistral Medium 3.1 share?

1 benchmark has published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Mistral Medium 3.1 has 3.