# Molmo 2 8b vs Qwen3-4B

> Molmo 2 8b is the stronger model overall, scoring 39.1 to 31.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/molmo-2-8b-vs-qwen3-4b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Molmo 2 8b leads 25.6 to 19.2.

## Snapshot

| | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | Alibaba (Qwen) |
| Noometry Index | 39.1 | 31.9 |
| Rank | 174 | 264 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Agentic & Tool Use

- Molmo 2 8b: —
- Qwen3-4B: 27.6 (#100)

| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 35.7% |

## Reasoning

- 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

- 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

- Molmo 2 8b: —
- Qwen3-4B: 33.0 (#208)

| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| GPQA Diamond | — | 52.3% |
| Vectara Hallucination Rate | — | 5.7% |

## Multimodal

- Molmo 2 8b: 30.2 (#112)
- Qwen3-4B: —

| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Vision | 1081 | — |

## Multilingual

- Molmo 2 8b: 42.7 (#190)
- Qwen3-4B: —

| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Non-English | 1276 | — |

## Instruction Following

- Molmo 2 8b: 67.0 (#201)
- Qwen3-4B: —

| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Instruction Following | 1270 | — |

## Writing & Preference

- Molmo 2 8b: 49.4 (#191)
- Qwen3-4B: —

| Benchmark | Molmo 2 8b | Qwen3-4B |
|---|---|---|
| LMArena Text | 1288 | — |

## FAQ

### 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.