# Molmo 2 8b vs o1-mini

> Molmo 2 8b is the stronger model overall, scoring 38.7 to 33.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/molmo-2-8b-vs-o1-mini
- Last updated: 2026-10-10
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Molmo 2 8b scores higher in 3 categories and o1-mini in 1 category; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Molmo 2 8b leads 24.5 to 8.9.
- Molmo 2 8b has downloadable open weights; the other is API-only.

## Snapshot

| | Molmo 2 8b | o1-mini |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | OpenAI |
| Noometry Index | 38.7 | 33.7 |
| Rank | 170 | 230 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Molmo 2 8b: —
- o1-mini: 35.1 (#218)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| Aider Polyglot | — | 32.9% |
| WeirdML | — | 36.3% |
| LiveBench Coding | — | 48% |
| LMArena Coding | — | 1362 |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |

## Agentic & Tool Use

- Molmo 2 8b: —
- o1-mini: 24.3 (#112)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| Cybench | — | 10% |

## Reasoning

- Molmo 2 8b: 24.5 (#146)
- o1-mini: 8.9 (#340)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1288 | 1333 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| ARC-AGI-1 | — | 14% |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| Epoch Capabilities Index | — | 135.82 |
| LiveBench | — | 57.8% |

## Math

- Molmo 2 8b: —
- o1-mini: 33.7 (#168)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| LMArena Math | — | 1358 |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |

## Knowledge

- Molmo 2 8b: —
- o1-mini: 34.8 (#180)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| GPQA Diamond | — | 62.4% |
| Confabulations | — | 18.6% |
| LMArena Expert | — | 1316 |

## Multimodal

- Molmo 2 8b: 29.5 (#106)
- o1-mini: —

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| LMArena Vision | 1081 | — |

## Multilingual

- Molmo 2 8b: 42.8 (#186)
- o1-mini: 43.8 (#177)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| LMArena Non-English | 1275 | 1289 |
| LMArena Chinese | — | 1314 |
| LMArena French | — | 1292 |
| LMArena German | — | 1278 |
| LMArena Japanese | — | 1245 |
| LMArena Korean | — | 1223 |
| LMArena Russian | — | 1283 |
| LMArena Spanish | — | 1302 |

## Instruction Following

- Molmo 2 8b: 67.2 (#196)
- o1-mini: 67.0 (#200)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1270 | 1304 |
| LiveBench Instruction Following | — | 65.4% |

## Long Context

- Molmo 2 8b: —
- o1-mini: 40.1 (#156)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| LMArena Longer Query | — | 1321 |

## Writing & Preference

- Molmo 2 8b: 49.5 (#187)
- o1-mini: 48.6 (#196)

| Benchmark | Molmo 2 8b | o1-mini |
|---|---|---|
| LMArena Text | 1288 | 1317 |
| LMArena Creative Writing | — | 1244 |
| Short-Story Creative Writing | — | 64.9% |
| LMArena Multi-Turn | — | 1314 |
| LiveBench Language | — | 40.9% |

## FAQ

### Is Molmo 2 8b better than o1-mini?

Molmo 2 8b is the stronger model overall, scoring 38.7 to 33.7 on the Noometry Index.

### How many benchmarks do Molmo 2 8b and o1-mini share?

4 benchmarks have published results for both models. Molmo 2 8b has 5 scored results on Noometry and o1-mini has 39.