Model comparison
Longcat Flash Chat vs MiMo-V2.6-Flash
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 42.1 on the Noometry Index.
Last verified . 14 shared benchmarks.
Summary
- They share 14 benchmarks with published results for both. Longcat Flash Chat scores higher in 0 categories and MiMo-V2.6-Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2.6-Flash leads 36.5 to 19.0.
Side by side
| Longcat Flash Chat | MiMo-V2.6-Flash | |
|---|---|---|
| Provider | Meituan | Xiaomi |
| Noometry Index | 42.1 | 48.5 |
| Released | — | 2026-09-21 |
| Weights | Open | Open |
| Context window | — | 1.05M |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.28 |
| Results tracked | 19 | 19 |
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Category by category
Coding MiMo-V2.6-Flash leads
Longcat Flash Chat: 43.5 (#87), MiMo-V2.6-Flash: 53.4 (#30)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Coding | 1471 | 1504 |
| LMArena WebDev | — | 1637 |
| SciCode | — | 51.3% |
Reasoning MiMo-V2.6-Flash leads
Longcat Flash Chat: 19.0 (#272), MiMo-V2.6-Flash: 36.5 (#66)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1482 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |
| CritPt | — | 12% |
Math MiMo-V2.6-Flash leads
Longcat Flash Chat: 39.4 (#107), MiMo-V2.6-Flash: 51.9 (#52)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Math | 1442 | 1468 |
| ProofBench | — | 63% |
Knowledge MiMo-V2.6-Flash leads
Longcat Flash Chat: 40.6 (#116), MiMo-V2.6-Flash: 42.2 (#99)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Expert | 1454 | 1501 |
Multimodal Not comparable
Longcat Flash Chat: —, MiMo-V2.6-Flash: 40.5 (#47)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Vision | — | 1259 |
Multilingual MiMo-V2.6-Flash leads
Longcat Flash Chat: 51.9 (#101), MiMo-V2.6-Flash: 54.0 (#51)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Non-English | 1404 | 1434 |
| LMArena Chinese | 1465 | 1511 |
| LMArena French | 1456 | 1475 |
| LMArena Russian | 1395 | 1409 |
| LMArena Spanish | 1445 | 1456 |
| LMArena German | 1408 | — |
| LMArena Japanese | 1373 | — |
| LMArena Korean | 1371 | — |
Instruction Following MiMo-V2.6-Flash leads
Longcat Flash Chat: 74.4 (#96), MiMo-V2.6-Flash: 76.8 (#35)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Instruction Following | 1411 | 1463 |
Long Context MiMo-V2.6-Flash leads
Longcat Flash Chat: 43.5 (#93), MiMo-V2.6-Flash: 44.8 (#57)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Longer Query | 1425 | 1463 |
Writing & Preference MiMo-V2.6-Flash leads
Longcat Flash Chat: 61.0 (#91), MiMo-V2.6-Flash: 63.1 (#67)
| Benchmark | Longcat Flash Chat | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Text | 1427 | 1455 |
| LMArena Creative Writing | 1388 | 1400 |
| LMArena Multi-Turn | 1418 | 1451 |
Frequently asked questions
Is Longcat Flash Chat better than MiMo-V2.6-Flash?
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 42.1 on the Noometry Index.
Is Longcat Flash Chat or MiMo-V2.6-Flash better for coding?
MiMo-V2.6-Flash scores higher on coding benchmarks: 53.4 versus 43.5 in the Noometry coding category.
How many benchmarks do Longcat Flash Chat and MiMo-V2.6-Flash share?
14 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and MiMo-V2.6-Flash has 19.