Model comparison
Gemma 3 4B vs Molmo 2 8b
Molmo 2 8b is the stronger model overall, scoring 39.1 to 28.1 on the Noometry Index.
Last verified . 4 shared benchmarks.
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Allen Institute for AI (Ai2)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 25.6 to 13.2.
Side by side
| Gemma 3 4B | Molmo 2 8b | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | |
| Noometry Index | 28.1 | 39.1 |
| Released | 2025-03-12 | — |
| Weights | Open | Open |
| Context window | 131K | — |
| Max output | 4K | — |
| Input $ / M tokens | $0.04 | — |
| Output $ / M tokens | $0.08 | — |
| Results tracked | 22 | 5 |
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Category by category
Coding Not comparable
Gemma 3 4B: 35.9 (#215), Molmo 2 8b: —
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Coding | 1230 | — |
Agentic & Tool Use Not comparable
Gemma 3 4B: 20.9 (#142), Molmo 2 8b: —
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| Berkeley Function Calling Leaderboard | 19.6% | — |
Reasoning Molmo 2 8b leads
Gemma 3 4B: 13.2 (#335), Molmo 2 8b: 25.6 (#146)
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1253 | 1287 |
| Kagi LLM Benchmark | 25.2% | — |
| Chess Puzzles | 0% | — |
| DTBench | 50.9% | — |
| LMCA | 2.8% | — |
| Epoch Capabilities Index | 116.02 | — |
Math Not comparable
Gemma 3 4B: 16.8 (#292), Molmo 2 8b: —
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 7.5% | — |
| LMArena Math | 1239 | — |
Knowledge Not comparable
Gemma 3 4B: 11.8 (#299), Molmo 2 8b: —
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 23.2% | — |
| Vectara Hallucination Rate | 6.4% | — |
| LMArena Expert | 1223 | — |
Multimodal Not comparable
Gemma 3 4B: —, Molmo 2 8b: 30.2 (#112)
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Vision | — | 1081 |
Multilingual Too close to call
Gemma 3 4B: 42.5 (#194), Molmo 2 8b: 42.7 (#190)
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1273 | 1276 |
| LMArena German | 1281 | — |
| LMArena Russian | 1294 | — |
Instruction Following Molmo 2 8b leads
Gemma 3 4B: 65.2 (#225), Molmo 2 8b: 67.0 (#201)
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1239 | 1270 |
Long Context Not comparable
Gemma 3 4B: 38.7 (#194), Molmo 2 8b: —
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1273 | — |
Writing & Preference Molmo 2 8b leads
Gemma 3 4B: 42.0 (#239), Molmo 2 8b: 49.4 (#191)
| Benchmark | Gemma 3 4B | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1291 | 1288 |
| LMArena Creative Writing | 1271 | — |
| EQ-Bench Creative Writing | 1068 | — |
| LMArena Multi-Turn | 1255 | — |
Frequently asked questions
Is Gemma 3 4B better than Molmo 2 8b?
Molmo 2 8b is the stronger model overall, scoring 39.1 to 28.1 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.