Model comparison
Mistral Small 3.1 vs Molmo 2 8b
Molmo 2 8b is the stronger model overall, scoring 38.7 to 31.4 on the Noometry Index.
Last verified . 5 shared benchmarks.
Mistral AI
Allen Institute for AI (Ai2)Summary
- They share 5 benchmarks with published results for both. Mistral Small 3.1 scores higher in 1 category and Molmo 2 8b in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Molmo 2 8b leads 49.5 to 37.2.
Side by side
| Mistral Small 3.1 | Molmo 2 8b | |
|---|---|---|
| Provider | Mistral AI | Allen Institute for AI (Ai2) |
| Noometry Index | 31.4 | 38.7 |
| Released | 2025-03-17 | — |
| Weights | Open | Open |
| Context window | 128K | — |
| Max output | 102K | — |
| Input $ / M tokens | $0.35 | — |
| Output $ / M tokens | $0.56 | — |
| Results tracked | 28 | 5 |
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Category by category
Coding Not comparable
Mistral Small 3.1: 37.7 (#175), Molmo 2 8b: —
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Coding | 1309 | — |
Reasoning Molmo 2 8b leads
Mistral Small 3.1: 18.9 (#249), Molmo 2 8b: 24.5 (#146)
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1278 | 1288 |
| Chess Puzzles | 1% | — |
| Epoch Capabilities Index | 127.48 | — |
Math Not comparable
Mistral Small 3.1: 13.7 (#295), Molmo 2 8b: —
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.9% | — |
| Omni-MATH | 24.8% | — |
| LMArena Math | 1261 | — |
Knowledge Not comparable
Mistral Small 3.1: 22.6 (#266), Molmo 2 8b: —
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 41.9% | — |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |
| LMArena Expert | 1258 | — |
Multimodal Mistral Small 3.1 leads
Mistral Small 3.1: 32.6 (#93), Molmo 2 8b: 29.5 (#106)
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1136 | 1081 |
Multilingual Molmo 2 8b leads
Mistral Small 3.1: 41.4 (#204), Molmo 2 8b: 42.8 (#186)
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1255 | 1275 |
| LMArena Chinese | 1254 | — |
| LMArena French | 1270 | — |
| LMArena German | 1266 | — |
| LMArena Japanese | 1210 | — |
| LMArena Korean | 1206 | — |
| LMArena Russian | 1263 | — |
| LMArena Spanish | 1283 | — |
Instruction Following Molmo 2 8b leads
Mistral Small 3.1: 63.8 (#225), Molmo 2 8b: 67.2 (#196)
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1264 | 1270 |
| IFEval | 75% | — |
Long Context Not comparable
Mistral Small 3.1: 39.5 (#172), Molmo 2 8b: —
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1300 | — |
Writing & Preference Molmo 2 8b leads
Mistral Small 3.1: 37.2 (#254), Molmo 2 8b: 49.5 (#187)
| Benchmark | Mistral Small 3.1 | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1278 | 1288 |
| LMArena Creative Writing | 1253 | — |
| EQ-Bench Creative Writing | 761 | — |
| WildBench | 78.8% | — |
| LMArena Multi-Turn | 1270 | — |
Frequently asked questions
Is Mistral Small 3.1 better than Molmo 2 8b?
Molmo 2 8b is the stronger model overall, scoring 38.7 to 31.4 on the Noometry Index.
How many benchmarks do Mistral Small 3.1 and Molmo 2 8b share?
5 benchmarks have published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and Molmo 2 8b has 5.