Model comparison
MiMo-V2.6-Flash vs Yi-Lightning
MiMo-V2.6-Flash is the stronger model overall, scoring 44.4 to 36.5 on the Noometry Index.
Last verified . 12 shared benchmarks.
Summary
- They share 12 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 44.3 to 27.0.
- 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 | 44.4 | 36.5 |
| Released | 2026-09-22 | 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 | 13 | 18 |
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Category by category
Coding MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 44.3 (#68), Yi-Lightning: 27.0 (#315)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1516 | 1313 |
| Aider Polyglot | — | 12.9% |
Reasoning MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 29.6 (#82), Yi-Lightning: 24.9 (#137)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1302 |
Math MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 37.4 (#97), Yi-Lightning: 33.5 (#173)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Math | 1477 | 1300 |
Knowledge MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 42.0 (#91), Yi-Lightning: 34.8 (#182)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1516 | 1286 |
Multimodal Not comparable
MiMo-V2.6-Flash: 40.2 (#39), Yi-Lightning: —
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1266 | — |
Multilingual MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 54.6 (#41), Yi-Lightning: 42.4 (#191)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1439 | 1269 |
| LMArena Chinese | 1501 | 1320 |
| LMArena Russian | 1424 | 1255 |
| LMArena French | — | 1304 |
| LMArena German | — | 1267 |
| LMArena Japanese | — | 1228 |
| LMArena Korean | — | 1192 |
| LMArena Spanish | — | 1315 |
Instruction Following MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 77.0 (#33), Yi-Lightning: 67.6 (#191)
| 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 (#52), Yi-Lightning: 39.4 (#176)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1465 | 1297 |
Writing & Preference MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 63.9 (#61), Yi-Lightning: 50.4 (#178)
| Benchmark | MiMo-V2.6-Flash | Yi-Lightning |
|---|---|---|
| LMArena Text | 1459 | 1302 |
| LMArena Creative Writing | 1408 | 1280 |
| LMArena Multi-Turn | 1460 | 1311 |
Frequently asked questions
Is MiMo-V2.6-Flash better than Yi-Lightning?
MiMo-V2.6-Flash is the stronger model overall, scoring 44.4 to 36.5 on the Noometry Index.
Is MiMo-V2.6-Flash or Yi-Lightning better for coding?
MiMo-V2.6-Flash scores higher on coding benchmarks: 44.3 versus 27.0 in the Noometry coding category.
How many benchmarks do MiMo-V2.6-Flash and Yi-Lightning share?
12 benchmarks have published results for both models. MiMo-V2.6-Flash has 13 scored results on Noometry and Yi-Lightning has 18.