Model comparison
Gemini 3.1 Flash Lite vs Molmo 2 8b
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 38.7 on the Noometry Index.
Last verified . 5 shared benchmarks.
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Allen Institute for AI (Ai2)Summary
- They share 5 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 4 categories and Molmo 2 8b in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Gemini 3.1 Flash Lite leads 61.0 to 49.5.
- Molmo 2 8b has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.1 Flash Lite | Molmo 2 8b | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | |
| Noometry Index | 40.4 | 38.7 |
| Released | 2026-03-03 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $1.50 | — |
| Results tracked | 38 | 5 |
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Category by category
Coding Not comparable
Gemini 3.1 Flash Lite: 37.5 (#179), Molmo 2 8b: —
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena WebDev | 1256 | — |
| SciCode | 41.9% | — |
| WeirdML | 52.2% | — |
| LMArena Coding | 1400 | — |
| ALE-Bench | 797.73 | — |
Agentic & Tool Use Not comparable
Gemini 3.1 Flash Lite: 29.9 (#72), Molmo 2 8b: —
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| DeepResearch Bench | 37.3% | — |
Reasoning Molmo 2 8b leads
Gemini 3.1 Flash Lite: 22.3 (#181), Molmo 2 8b: 24.5 (#146)
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1407 | 1288 |
| Kagi LLM Benchmark | 67.2% | — |
| NYT Connections (extended) | 8.2% | — |
| CritPt | 1.1% | — |
| Chess Puzzles | 25% | — |
| EnigmaEval | 3% | — |
| Thematic Generalization | 63.3% | — |
| DTBench | 76.8% | — |
| LMCA | 35% | — |
| Epoch Capabilities Index | 144.45 | — |
| ForecastBench | 54.4 | — |
Math Not comparable
Gemini 3.1 Flash Lite: 39.5 (#82), Molmo 2 8b: —
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| FrontierMath (Tiers 1-3) | 27.7% | — |
| OTIS Mock AIME 2024-2025 | 80% | — |
| LMArena Math | 1427 | — |
Knowledge Not comparable
Gemini 3.1 Flash Lite: 41.7 (#95), Molmo 2 8b: —
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 81.8% | — |
| Humanity's Last Exam | 8.6% | — |
| Vectara Hallucination Rate | 8.2% | — |
| LMArena Expert | 1397 | — |
Multimodal Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 38.7 (#57), Molmo 2 8b: 29.5 (#106)
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1240 | 1081 |
Multilingual Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 52.5 (#82), Molmo 2 8b: 42.8 (#186)
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1410 | 1275 |
| LMArena Chinese | 1461 | — |
| LMArena French | 1423 | — |
| LMArena German | 1429 | — |
| LMArena Japanese | 1411 | — |
| LMArena Korean | 1393 | — |
| LMArena Russian | 1420 | — |
| LMArena Spanish | 1420 | — |
Instruction Following Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 72.9 (#126), Molmo 2 8b: 67.2 (#196)
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1376 | 1270 |
Long Context Not comparable
Gemini 3.1 Flash Lite: 42.5 (#117), Molmo 2 8b: —
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1394 | — |
Writing & Preference Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 61.0 (#90), Molmo 2 8b: 49.5 (#187)
| Benchmark | Gemini 3.1 Flash Lite | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1416 | 1288 |
| LMArena Creative Writing | 1401 | — |
| LMArena Multi-Turn | 1417 | — |
Frequently asked questions
Is Gemini 3.1 Flash Lite better than Molmo 2 8b?
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 38.7 on the Noometry Index.
How many benchmarks do Gemini 3.1 Flash Lite and Molmo 2 8b share?
5 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Molmo 2 8b has 5.