# MiMo-V2.6-Flash vs o3-pro

> MiMo-V2.6-Flash is the stronger model overall, scoring 44.4 to 42.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mimo-v2-6-flash-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 44.8.
- MiMo-V2.6-Flash is cheaper at $0.14 / $0.28 per million input/output tokens, against $20 / $80 for o3-pro.
- MiMo-V2.6-Flash accepts more context: 1.05M tokens versus 200K.
- MiMo-V2.6-Flash has downloadable open weights; the other is API-only.

## Snapshot

| | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| Provider | Xiaomi | OpenAI |
| Noometry Index | 44.4 | 42.7 |
| Rank | 74 | 94 |
| Context | 1.05M | 200K |
| Input $/M | $0.14 | $20 |
| Output $/M | $0.28 | $80 |
| Weights | Open | Proprietary |

## Coding

- MiMo-V2.6-Flash: 44.3 (#68)
- o3-pro: 55.1 (#22)

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LMArena Coding | 1516 | — |

## Reasoning

- MiMo-V2.6-Flash: 29.6 (#82)
- o3-pro: 24.1 (#152)

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LMArena Hard Prompts | 1481 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.43 |

## Math

- MiMo-V2.6-Flash: 37.4 (#97)
- o3-pro: —

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| LMArena Math | 1477 | — |

## Knowledge

- MiMo-V2.6-Flash: 42.0 (#91)
- o3-pro: 29.0 (#234)

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1516 | — |

## Multimodal

- MiMo-V2.6-Flash: 40.2 (#39)
- o3-pro: —

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| LMArena Vision | 1266 | — |

## Multilingual

- MiMo-V2.6-Flash: 54.6 (#41)
- o3-pro: —

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| LMArena Non-English | 1439 | — |
| LMArena Chinese | 1501 | — |
| LMArena Russian | 1424 | — |

## Instruction Following

- MiMo-V2.6-Flash: 77.0 (#33)
- o3-pro: —

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1463 | — |

## Long Context

- MiMo-V2.6-Flash: 44.8 (#52)
- o3-pro: 72.1 (#1)

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1465 | — |

## Writing & Preference

- MiMo-V2.6-Flash: 63.9 (#61)
- o3-pro: 57.1 (#128)

| Benchmark | MiMo-V2.6-Flash | o3-pro |
|---|---|---|
| LMArena Text | 1459 | — |
| LMArena Creative Writing | 1408 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1460 | — |

## FAQ

### Is MiMo-V2.6-Flash better than o3-pro?

MiMo-V2.6-Flash is the stronger model overall, scoring 44.4 to 42.7 on the Noometry Index.

### Which is cheaper, MiMo-V2.6-Flash or o3-pro?

MiMo-V2.6-Flash 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-V2.6-Flash or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.1 versus 44.3 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2.6-Flash does, with 1.05M tokens against 200K.

### How many benchmarks do MiMo-V2.6-Flash and o3-pro share?

0 benchmarks have published results for both models. MiMo-V2.6-Flash has 13 scored results on Noometry and o3-pro has 12.