# Longcat Flash Chat vs MiMo-V2-Omni

> MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 42.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/longcat-flash-chat-vs-mimo-v2-omni
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Longcat Flash Chat scores higher in 4 categories and MiMo-V2-Omni in 4 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2-Omni leads 29.7 to 19.0.
- Longcat Flash Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| Provider | Meituan | Xiaomi |
| Noometry Index | 42.1 | 43.6 |
| Rank | 120 | 88 |
| Context | — | 262K |
| Input $/M | — | $0.14 |
| Output $/M | — | $0.28 |
| Weights | Open | Proprietary |

## Coding

- Longcat Flash Chat: 43.5 (#87)
- MiMo-V2-Omni: 43.3 (#89)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Coding | 1471 | 1466 |

## Reasoning

- Longcat Flash Chat: 19.0 (#272)
- MiMo-V2-Omni: 29.7 (#88)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1445 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |

## Math

- Longcat Flash Chat: 39.4 (#107)
- MiMo-V2-Omni: 39.1 (#115)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Math | 1442 | 1430 |

## Knowledge

- Longcat Flash Chat: 40.6 (#116)
- MiMo-V2-Omni: 40.5 (#118)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | 1454 | 1449 |

## Multimodal

- Longcat Flash Chat: —
- MiMo-V2-Omni: 38.6 (#63)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |

## Multilingual

- Longcat Flash Chat: 51.9 (#101)
- MiMo-V2-Omni: 51.8 (#102)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | 1404 | 1404 |
| LMArena Chinese | 1465 | 1465 |
| LMArena French | 1456 | 1447 |
| LMArena German | 1408 | 1399 |
| LMArena Japanese | 1373 | 1317 |
| LMArena Korean | 1371 | 1355 |
| LMArena Russian | 1395 | 1412 |
| LMArena Spanish | 1445 | 1434 |

## Instruction Following

- Longcat Flash Chat: 74.4 (#96)
- MiMo-V2-Omni: 75.2 (#66)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | 1411 | 1428 |

## Long Context

- Longcat Flash Chat: 43.5 (#93)
- MiMo-V2-Omni: 44.1 (#76)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | 1425 | 1442 |

## Writing & Preference

- Longcat Flash Chat: 61.0 (#91)
- MiMo-V2-Omni: 61.4 (#87)

| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | 1427 | 1423 |
| LMArena Creative Writing | 1388 | 1392 |
| LMArena Multi-Turn | 1418 | 1445 |

## FAQ

### Is Longcat Flash Chat better than MiMo-V2-Omni?

MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 42.1 on the Noometry Index.

### Is Longcat Flash Chat or MiMo-V2-Omni better for coding?

They score almost the same on coding (43.5 vs 43.3); test both on your own repository before choosing.

### How many benchmarks do Longcat Flash Chat and MiMo-V2-Omni share?

17 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and MiMo-V2-Omni has 18.