Model comparison
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.
Last verified . 17 shared benchmarks.
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.
Side by side
| Longcat Flash Chat | MiMo-V2-Omni | |
|---|---|---|
| Provider | Meituan | Xiaomi |
| Noometry Index | 42.1 | 43.6 |
| Released | — | 2026-03-18 |
| Weights | Open | Proprietary |
| Context window | — | 262K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.28 |
| Results tracked | 19 | 18 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Too close to call
Longcat Flash Chat: 43.5 (#87), MiMo-V2-Omni: 43.3 (#89)
| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Coding | 1471 | 1466 |
Reasoning MiMo-V2-Omni leads
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 Too close to call
Longcat Flash Chat: 39.4 (#107), MiMo-V2-Omni: 39.1 (#115)
| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Math | 1442 | 1430 |
Knowledge Too close to call
Longcat Flash Chat: 40.6 (#116), MiMo-V2-Omni: 40.5 (#118)
| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | 1454 | 1449 |
Multimodal Not comparable
Longcat Flash Chat: —, MiMo-V2-Omni: 38.6 (#63)
| Benchmark | Longcat Flash Chat | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |
Multilingual Too close to call
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 Too close to call
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 Too close to call
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 Too close to call
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 |
Frequently asked questions
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.