Model comparison
Molmo 2 8b vs Qwen3-4B
Molmo 2 8b is the stronger model overall, scoring 39.1 to 31.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
Allen Institute for AI (Ai2)
Alibaba (Qwen)Summary
- The widest gap is in reasoning, where Molmo 2 8b leads 25.6 to 19.2.
Side by side
| Molmo 2 8b | Qwen3-4B | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | Alibaba (Qwen) |
| Noometry Index | 39.1 | 31.9 |
| Released | — | 2025-04-29 |
| Weights | Open | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 5 | 6 |
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Category by category
Agentic & Tool Use Not comparable
Molmo 2 8b: —, Qwen3-4B: 27.6 (#100)
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 35.7% |
Reasoning Molmo 2 8b leads
Molmo 2 8b: 25.6 (#146), Qwen3-4B: 19.2 (#268)
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| Chess Puzzles | — | 4% |
| LMArena Hard Prompts | 1287 | — |
Math Not comparable
Molmo 2 8b: —, Qwen3-4B: 29.7 (#240)
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| MathArena Final-Answer Competitions | — | 38.5% |
| OTIS Mock AIME 2024-2025 | — | 52.2% |
Knowledge Not comparable
Molmo 2 8b: —, Qwen3-4B: 33.0 (#208)
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| GPQA Diamond | — | 52.3% |
| Vectara Hallucination Rate | — | 5.7% |
Multimodal Not comparable
Molmo 2 8b: 30.2 (#112), Qwen3-4B: —
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Vision | 1081 | — |
Multilingual Not comparable
Molmo 2 8b: 42.7 (#190), Qwen3-4B: —
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Non-English | 1276 | — |
Instruction Following Not comparable
Molmo 2 8b: 67.0 (#201), Qwen3-4B: —
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Instruction Following | 1270 | — |
Writing & Preference Not comparable
Molmo 2 8b: 49.4 (#191), Qwen3-4B: —
| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Text | 1288 | — |
Frequently asked questions
Is Molmo 2 8b better than Qwen3-4B?
Molmo 2 8b is the stronger model overall, scoring 39.1 to 31.9 on the Noometry Index.
How many benchmarks do Molmo 2 8b and Qwen3-4B share?
0 benchmarks have published results for both models. Molmo 2 8b has 5 scored results on Noometry and Qwen3-4B has 6.