Model comparison
MiMo-V2.6-Flash vs Yi-Lightning
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 37.1 on the Noometry Index.
Last verified . 14 shared benchmarks.
Summary
- They share 14 benchmarks with published results for both. MiMo-V2.6-Flash scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where MiMo-V2.6-Flash leads 53.4 to 27.4.
- MiMo-V2.6-Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2.6-Flash | Yi-Lightning | |
|---|---|---|
| Provider | Xiaomi | 01.AI |
| Noometry Index | 48.5 | 37.1 |
| Released | 2026-09-21 | 2024-12-02 |
| Weights | Open | Proprietary |
| Context window | 1.05M | — |
| Max output | 131K | — |
| Input $ / M tokens | $0.14 | — |
| Output $ / M tokens | $0.28 | — |
| Results tracked | 19 | 18 |
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Category by category
Coding MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 53.4 (#30), Yi-Lightning: 27.4 (#320)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1504 | 1312 |
| Aider Polyglot | — | 12.9% |
| LMArena WebDev | 1637 | — |
| SciCode | 51.3% | — |
Reasoning MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 36.5 (#66), Yi-Lightning: 25.9 (#139)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1482 | 1302 |
| CritPt | 12% | — |
Math MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 51.9 (#52), Yi-Lightning: 36.2 (#172)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Math | 1468 | 1300 |
| ProofBench | 63% | — |
Knowledge MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 42.2 (#99), Yi-Lightning: 35.4 (#185)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1501 | 1286 |
Multimodal Not comparable
MiMo-V2.6-Flash: 40.5 (#47), Yi-Lightning: —
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1259 | — |
Multilingual MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 54.0 (#51), Yi-Lightning: 42.2 (#196)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1434 | 1269 |
| LMArena Chinese | 1511 | 1320 |
| LMArena French | 1475 | 1305 |
| LMArena Russian | 1409 | 1255 |
| LMArena Spanish | 1456 | 1315 |
| LMArena German | — | 1267 |
| LMArena Japanese | — | 1228 |
| LMArena Korean | — | 1192 |
Instruction Following MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 76.8 (#35), Yi-Lightning: 67.4 (#196)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1463 | 1278 |
Long Context MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 44.8 (#57), Yi-Lightning: 39.4 (#181)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1463 | 1297 |
Writing & Preference MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 63.1 (#67), Yi-Lightning: 50.2 (#184)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Text | 1455 | 1302 |
| LMArena Creative Writing | 1400 | 1280 |
| LMArena Multi-Turn | 1451 | 1311 |
Frequently asked questions
Is MiMo-V2.6-Flash better than Yi-Lightning?
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 37.1 on the Noometry Index.
Is MiMo-V2.6-Flash or Yi-Lightning better for coding?
MiMo-V2.6-Flash scores higher on coding benchmarks: 53.4 versus 27.4 in the Noometry coding category.
How many benchmarks do MiMo-V2.6-Flash and Yi-Lightning share?
14 benchmarks have published results for both models. MiMo-V2.6-Flash has 19 scored results on Noometry and Yi-Lightning has 18.