# MiMo-V2-Omni vs Yi-Lightning

> MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 37.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mimo-v2-omni-vs-yi-lightning
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. MiMo-V2-Omni 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-Omni leads 43.3 to 27.4.

## Snapshot

| | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| Provider | Xiaomi | 01.AI |
| Noometry Index | 43.6 | 37.1 |
| Rank | 88 | 209 |
| Context | 262K | — |
| Input $/M | $0.14 | — |
| Output $/M | $0.28 | — |
| Weights | Proprietary | Proprietary |

## Coding

- MiMo-V2-Omni: 43.3 (#89)
- Yi-Lightning: 27.4 (#320)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1466 | 1312 |
| Aider Polyglot | — | 12.9% |

## Reasoning

- MiMo-V2-Omni: 29.7 (#88)
- Yi-Lightning: 25.9 (#139)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1445 | 1302 |

## Math

- MiMo-V2-Omni: 39.1 (#115)
- Yi-Lightning: 36.2 (#172)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Math | 1430 | 1300 |

## Knowledge

- MiMo-V2-Omni: 40.5 (#118)
- Yi-Lightning: 35.4 (#185)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1449 | 1286 |

## Multimodal

- MiMo-V2-Omni: 38.6 (#63)
- Yi-Lightning: —

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1228 | — |

## Multilingual

- MiMo-V2-Omni: 51.8 (#102)
- Yi-Lightning: 42.2 (#196)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1404 | 1269 |
| LMArena Chinese | 1465 | 1320 |
| LMArena French | 1447 | 1305 |
| LMArena German | 1399 | 1267 |
| LMArena Japanese | 1317 | 1228 |
| LMArena Korean | 1355 | 1192 |
| LMArena Russian | 1412 | 1255 |
| LMArena Spanish | 1434 | 1315 |

## Instruction Following

- MiMo-V2-Omni: 75.2 (#66)
- Yi-Lightning: 67.4 (#196)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1428 | 1278 |

## Long Context

- MiMo-V2-Omni: 44.1 (#76)
- Yi-Lightning: 39.4 (#181)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1442 | 1297 |

## Writing & Preference

- MiMo-V2-Omni: 61.4 (#87)
- Yi-Lightning: 50.2 (#184)

| Benchmark | MiMo-V2-Omni | Yi-Lightning |
|---|---|---|
| LMArena Text | 1423 | 1302 |
| LMArena Creative Writing | 1392 | 1280 |
| LMArena Multi-Turn | 1445 | 1311 |

## FAQ

### Is MiMo-V2-Omni better than Yi-Lightning?

MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 37.1 on the Noometry Index.

### Is MiMo-V2-Omni or Yi-Lightning better for coding?

MiMo-V2-Omni scores higher on coding benchmarks: 43.3 versus 27.4 in the Noometry coding category.

### How many benchmarks do MiMo-V2-Omni and Yi-Lightning share?

17 benchmarks have published results for both models. MiMo-V2-Omni has 18 scored results on Noometry and Yi-Lightning has 18.