# MiMo-V2-Omni vs o3-pro

> MiMo-V2-Omni and o3-pro score almost the same on the Noometry Index (42.9 vs 42.7), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/mimo-v2-omni-vs-o3-pro
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in long context, where o3-pro leads 72.1 to 44.1.
- MiMo-V2-Omni is cheaper at $0.14 / $0.28 per million input/output tokens, against $20 / $80 for o3-pro.
- MiMo-V2-Omni accepts more context: 262K tokens versus 200K.

## Snapshot

| | MiMo-V2-Omni | o3-pro |
|---|---|---|
| Provider | Xiaomi | OpenAI |
| Noometry Index | 42.9 | 42.7 |
| Rank | 91 | 94 |
| Context | 262K | 200K |
| Input $/M | $0.14 | $20 |
| Output $/M | $0.28 | $80 |
| Weights | Proprietary | Proprietary |

## Coding

- MiMo-V2-Omni: 42.7 (#87)
- o3-pro: 55.1 (#22)

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LMArena Coding | 1467 | — |

## Reasoning

- MiMo-V2-Omni: 28.6 (#86)
- o3-pro: 24.1 (#152)

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LMArena Hard Prompts | 1445 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.43 |

## Math

- MiMo-V2-Omni: 36.4 (#112)
- o3-pro: —

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| LMArena Math | 1432 | — |

## Knowledge

- MiMo-V2-Omni: 39.9 (#114)
- o3-pro: 29.0 (#234)

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1449 | — |

## Multimodal

- MiMo-V2-Omni: 37.9 (#62)
- o3-pro: —

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| LMArena Vision | 1228 | — |

## Multilingual

- MiMo-V2-Omni: 52.0 (#97)
- o3-pro: —

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| LMArena Non-English | 1404 | — |
| LMArena Chinese | 1469 | — |
| LMArena French | 1448 | — |
| LMArena German | 1398 | — |
| LMArena Japanese | 1318 | — |
| LMArena Korean | 1355 | — |
| LMArena Russian | 1412 | — |
| LMArena Spanish | 1432 | — |

## Instruction Following

- MiMo-V2-Omni: 75.4 (#62)
- o3-pro: —

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1428 | — |

## Long Context

- MiMo-V2-Omni: 44.1 (#72)
- o3-pro: 72.1 (#1)

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1442 | — |

## Writing & Preference

- MiMo-V2-Omni: 61.6 (#83)
- o3-pro: 57.1 (#128)

| Benchmark | MiMo-V2-Omni | o3-pro |
|---|---|---|
| LMArena Text | 1424 | — |
| LMArena Creative Writing | 1393 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1446 | — |

## FAQ

### Is MiMo-V2-Omni better than o3-pro?

MiMo-V2-Omni and o3-pro score almost the same on the Noometry Index (42.9 vs 42.7), so choose on price, context window or the category you care about most.

### Which is cheaper, MiMo-V2-Omni or o3-pro?

MiMo-V2-Omni is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; o3-pro lists at $20 and $80.

### Is MiMo-V2-Omni or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.1 versus 42.7 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2-Omni does, with 262K tokens against 200K.

### How many benchmarks do MiMo-V2-Omni and o3-pro share?

0 benchmarks have published results for both models. MiMo-V2-Omni has 18 scored results on Noometry and o3-pro has 12.