Model comparison
MiMo-V2-Flash vs Yi-Lightning
MiMo-V2-Flash is the stronger model overall, scoring 41.3 to 37.1 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. MiMo-V2-Flash scores higher in 7 categories and Yi-Lightning in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2-Flash leads 59.7 to 50.2.
- MiMo-V2-Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2-Flash | Yi-Lightning | |
|---|---|---|
| Provider | Xiaomi | 01.AI |
| Noometry Index | 41.3 | 37.1 |
| Released | 2025-12-16 | 2024-12-02 |
| Weights | Open | Proprietary |
| Context window | 262K | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.14 | — |
| Output $ / M tokens | $0.28 | — |
| Results tracked | 21 | 18 |
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Category by category
Coding MiMo-V2-Flash leads
MiMo-V2-Flash: 36.1 (#211), Yi-Lightning: 27.4 (#320)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1443 | 1312 |
| Aider Polyglot | — | 12.9% |
| LMArena WebDev | 1330 | — |
| SciCode | 25.9% | — |
| ALE-Bench | 737.95 | — |
Reasoning Yi-Lightning leads
MiMo-V2-Flash: 24.9 (#157), Yi-Lightning: 25.9 (#139)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1302 |
| CritPt | 0% | — |
Math MiMo-V2-Flash leads
MiMo-V2-Flash: 38.3 (#139), Yi-Lightning: 36.2 (#172)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Math | 1396 | 1300 |
Knowledge MiMo-V2-Flash leads
MiMo-V2-Flash: 39.7 (#131), Yi-Lightning: 35.4 (#185)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1425 | 1286 |
Multilingual MiMo-V2-Flash leads
MiMo-V2-Flash: 51.0 (#113), Yi-Lightning: 42.2 (#196)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1392 | 1269 |
| LMArena Chinese | 1462 | 1320 |
| LMArena French | 1429 | 1305 |
| LMArena German | 1395 | 1267 |
| LMArena Japanese | 1325 | 1228 |
| LMArena Korean | 1358 | 1192 |
| LMArena Russian | 1387 | 1255 |
| LMArena Spanish | 1420 | 1315 |
Instruction Following MiMo-V2-Flash leads
MiMo-V2-Flash: 73.5 (#120), Yi-Lightning: 67.4 (#196)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1392 | 1278 |
Long Context MiMo-V2-Flash leads
MiMo-V2-Flash: 43.0 (#110), Yi-Lightning: 39.4 (#181)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1409 | 1297 |
Writing & Preference MiMo-V2-Flash leads
MiMo-V2-Flash: 59.7 (#106), Yi-Lightning: 50.2 (#184)
| Benchmark | MiMo-V2-Flash | Yi-Lightning |
|---|---|---|
| LMArena Text | 1411 | 1302 |
| LMArena Creative Writing | 1375 | 1280 |
| LMArena Multi-Turn | 1404 | 1311 |
Frequently asked questions
Is MiMo-V2-Flash better than Yi-Lightning?
MiMo-V2-Flash is the stronger model overall, scoring 41.3 to 37.1 on the Noometry Index.
Is MiMo-V2-Flash or Yi-Lightning better for coding?
MiMo-V2-Flash scores higher on coding benchmarks: 36.1 versus 27.4 in the Noometry coding category.
How many benchmarks do MiMo-V2-Flash and Yi-Lightning share?
17 benchmarks have published results for both models. MiMo-V2-Flash has 21 scored results on Noometry and Yi-Lightning has 18.