# MiMo-V2.5 vs Molmo 2 8b

> MiMo-V2.5 is the stronger model overall, scoring 43.0 to 38.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mimo-v2-5-vs-molmo-2-8b
- Last updated: 2026-10-10
- Shared benchmarks: 5

## Summary

- They share 5 benchmarks with published results for both. MiMo-V2.5 scores higher in 5 categories and Molmo 2 8b in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2.5 leads 61.8 to 49.5.

## Snapshot

| | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| Provider | Xiaomi | Allen Institute for AI (Ai2) |
| Noometry Index | 43.0 | 38.7 |
| Rank | 89 | 170 |
| Context | 1.05M | — |
| Input $/M | $0.14 | — |
| Output $/M | $0.28 | — |
| Weights | Open | Open |

## Coding

- MiMo-V2.5: 43.6 (#75)
- Molmo 2 8b: —

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena WebDev | 1438 | — |
| SciCode | 43.1% | — |
| LMArena Coding | 1469 | — |
| ALE-Bench | 513.95 | — |

## Reasoning

- MiMo-V2.5: 27.8 (#98)
- Molmo 2 8b: 24.5 (#146)

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1450 | 1288 |
| CritPt | 3.7% | — |

## Math

- MiMo-V2.5: 35.4 (#145)
- Molmo 2 8b: —

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| ProofBench | 16% | — |
| LMArena Math | 1436 | — |

## Knowledge

- MiMo-V2.5: 40.2 (#109)
- Molmo 2 8b: —

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Expert | 1459 | — |

## Multimodal

- MiMo-V2.5: 39.0 (#53)
- Molmo 2 8b: 29.5 (#106)

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1245 | 1081 |

## Multilingual

- MiMo-V2.5: 52.0 (#96)
- Molmo 2 8b: 42.8 (#186)

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1404 | 1275 |
| LMArena Chinese | 1467 | — |
| LMArena French | 1447 | — |
| LMArena German | 1421 | — |
| LMArena Japanese | 1304 | — |
| LMArena Korean | 1363 | — |
| LMArena Russian | 1395 | — |
| LMArena Spanish | 1412 | — |

## Instruction Following

- MiMo-V2.5: 75.7 (#55)
- Molmo 2 8b: 67.2 (#196)

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1433 | 1270 |

## Long Context

- MiMo-V2.5: 44.1 (#69)
- Molmo 2 8b: —

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1444 | — |

## Writing & Preference

- MiMo-V2.5: 61.8 (#82)
- Molmo 2 8b: 49.5 (#187)

| Benchmark | MiMo-V2.5 | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1427 | 1288 |
| LMArena Creative Writing | 1392 | — |
| LMArena Multi-Turn | 1445 | — |

## FAQ

### Is MiMo-V2.5 better than Molmo 2 8b?

MiMo-V2.5 is the stronger model overall, scoring 43.0 to 38.7 on the Noometry Index.

### How many benchmarks do MiMo-V2.5 and Molmo 2 8b share?

5 benchmarks have published results for both models. MiMo-V2.5 has 23 scored results on Noometry and Molmo 2 8b has 5.