Model comparison
Molmo 2 8b vs o1-pro
Molmo 2 8b is the stronger model overall, scoring 39.1 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- The widest gap is in reasoning, where Molmo 2 8b leads 25.6 to 20.4.
- Molmo 2 8b has downloadable open weights; the other is API-only.
Side by side
| Molmo 2 8b | o1-pro | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | OpenAI |
| Noometry Index | 39.1 | 31.5 |
| Released | — | 2025-03-19 |
| Weights | Open | Proprietary |
| Context window | — | 200K |
| Max output | — | 100K |
| Input $ / M tokens | — | $150 |
| Output $ / M tokens | — | $600 |
| Results tracked | 5 | 3 |
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Category by category
Reasoning Molmo 2 8b leads
Molmo 2 8b: 25.6 (#146), o1-pro: 20.4 (#239)
| Benchmark | Molmo 2 8b | o1-pro |
|---|---|---|
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| LMArena Hard Prompts | 1287 | — |
Knowledge Not comparable
Molmo 2 8b: —, o1-pro: 29.7 (#234)
| Benchmark | Molmo 2 8b | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |
Multimodal Not comparable
Molmo 2 8b: 30.2 (#112), o1-pro: —
| Benchmark | Molmo 2 8b | o1-pro |
|---|---|---|
| LMArena Vision | 1081 | — |
Multilingual Not comparable
Molmo 2 8b: 42.7 (#190), o1-pro: —
| Benchmark | Molmo 2 8b | o1-pro |
|---|---|---|
| LMArena Non-English | 1276 | — |
Instruction Following Not comparable
Molmo 2 8b: 67.0 (#201), o1-pro: —
| Benchmark | Molmo 2 8b | o1-pro |
|---|---|---|
| LMArena Instruction Following | 1270 | — |
Writing & Preference Not comparable
Molmo 2 8b: 49.4 (#191), o1-pro: —
| Benchmark | Molmo 2 8b | o1-pro |
|---|---|---|
| LMArena Text | 1288 | — |
Frequently asked questions
Is Molmo 2 8b better than o1-pro?
Molmo 2 8b is the stronger model overall, scoring 39.1 to 31.5 on the Noometry Index.
How many benchmarks do Molmo 2 8b and o1-pro share?
0 benchmarks have published results for both models. Molmo 2 8b has 5 scored results on Noometry and o1-pro has 3.