# Gemma 3 4B vs Molmo 2 8b

> Molmo 2 8b is the stronger model overall, scoring 38.7 to 27.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-3-4b-vs-molmo-2-8b
- Last updated: 2026-10-10
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Gemma 3 4B scores higher in 0 categories and Molmo 2 8b in 4 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Molmo 2 8b leads 24.5 to 12.7.

## Snapshot

| | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| Provider | Google | Allen Institute for AI (Ai2) |
| Noometry Index | 27.9 | 38.7 |
| Rank | 320 | 170 |
| Context | 131K | — |
| Input $/M | $0.04 | — |
| Output $/M | $0.08 | — |
| Weights | Open | Open |

## Coding

- Gemma 3 4B: 35.3 (#214)
- Molmo 2 8b: —

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Coding | 1230 | — |

## Agentic & Tool Use

- Gemma 3 4B: 20.7 (#134)
- Molmo 2 8b: —

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| Berkeley Function Calling Leaderboard | 19.6% | — |

## Reasoning

- Gemma 3 4B: 12.7 (#330)
- Molmo 2 8b: 24.5 (#146)

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1253 | 1288 |
| Kagi LLM Benchmark | 25.2% | — |
| Chess Puzzles | 0% | — |
| DTBench | 50.9% | — |
| LMCA | 2.8% | — |
| Epoch Capabilities Index | 116.02 | — |

## Math

- Gemma 3 4B: 15.8 (#286)
- Molmo 2 8b: —

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 7.5% | — |
| LMArena Math | 1239 | — |

## Knowledge

- Gemma 3 4B: 11.8 (#294)
- Molmo 2 8b: —

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 23.2% | — |
| Vectara Hallucination Rate | 6.4% | — |
| LMArena Expert | 1223 | — |

## Multimodal

- Gemma 3 4B: —
- Molmo 2 8b: 29.5 (#106)

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Vision | — | 1081 |

## Multilingual

- Gemma 3 4B: 42.7 (#189)
- Molmo 2 8b: 42.8 (#186)

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1273 | 1275 |
| LMArena German | 1281 | — |
| LMArena Russian | 1294 | — |

## Instruction Following

- Gemma 3 4B: 65.4 (#219)
- Molmo 2 8b: 67.2 (#196)

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1239 | 1270 |

## Long Context

- Gemma 3 4B: 38.6 (#189)
- Molmo 2 8b: —

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1274 | — |

## Writing & Preference

- Gemma 3 4B: 42.2 (#234)
- Molmo 2 8b: 49.5 (#187)

| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1291 | 1288 |
| LMArena Creative Writing | 1270 | — |
| EQ-Bench Creative Writing | 1068 | — |
| LMArena Multi-Turn | 1255 | — |

## FAQ

### Is Gemma 3 4B better than Molmo 2 8b?

Molmo 2 8b is the stronger model overall, scoring 38.7 to 27.9 on the Noometry Index.

### How many benchmarks do Gemma 3 4B and Molmo 2 8b share?

4 benchmarks have published results for both models. Gemma 3 4B has 22 scored results on Noometry and Molmo 2 8b has 5.