Model comparison
Gemini 3.1 Pro Preview vs Olmo 3.1 32b Think
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 37.9 on the Noometry Index.
Last verified . 15 shared benchmarks.
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Allen Institute for AI (Ai2)Summary
- They share 15 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 8 categories and Olmo 3.1 32b Think in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 25.2.
- Olmo 3.1 32b Think has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.1 Pro Preview | Olmo 3.1 32b Think | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | |
| Noometry Index | 56.7 | 37.9 |
| Released | 2026-02-19 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $12 | — |
| Results tracked | 71 | 15 |
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Category by category
Coding Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 42.5 (#99), Olmo 3.1 32b Think: 37.7 (#189)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Coding | 1484 | 1291 |
| SWE-bench Verified | 75.6% | — |
| DeepSWE | 11.7% | — |
| LMArena WebDev | 1447 | — |
| SciCode | 58.9% | — |
| GSO | 22.6% | — |
| WeirdML | 72.1% | — |
| MirrorCode | 8.9% | — |
| ALE-Bench | 1,161 | — |
| AlgoTune | 2.02 | — |
Agentic & Tool Use Not comparable
Gemini 3.1 Pro Preview: 37.7 (#34), Olmo 3.1 32b Think: —
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| Terminal-Bench | 80.2% | — |
| APEX-Agents | 35.3% | — |
| τ²-bench Banking | 26% | — |
| DeepResearch Bench | 47.8% | — |
| PostTrainBench | 22% | — |
| BALROG | 57% | — |
| ExploitBench | 26.1% | — |
| GBAEval | 0.8% | — |
| GDP.pdf | 17% | — |
| LMArena Search | 1211 | — |
| METR Time Horizons | 77% | — |
| Vending-Bench 2 | 3,774 | — |
Reasoning Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 71.7 (#12), Olmo 3.1 32b Think: 25.2 (#150)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Hard Prompts | 1485 | 1272 |
| ARC-AGI-2 | 77.1% | — |
| SimpleBench | 79.6% | — |
| NYT Connections (extended) | 97.4% | — |
| ARC-AGI-1 | 98% | — |
| CritPt | 17.7% | — |
| Chess Puzzles | 55% | — |
| EnigmaEval | 36.8% | — |
| Thematic Generalization | 79.4% | — |
| EBR-Bench | 14.3% | — |
| Mystery Game Puzzles | 34% | — |
| DTBench | 97.1% | — |
| LMCA | 53.8% | — |
| Epoch Capabilities Index | 154.77 | — |
| ForecastBench | 59 | — |
Math Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 62.1 (#34), Olmo 3.1 32b Think: 36.3 (#168)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Math | 1485 | 1305 |
| FrontierMath (Tiers 1-3) | 59.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 86.5% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 26% | — |
| FrontierMath (Feb 2025 set) | 36.9% | — |
| FrontierMath Tier 4 (v1) | 16.7% | — |
Knowledge Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 71.8 (#3), Olmo 3.1 32b Think: 35.7 (#181)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Expert | 1485 | 1295 |
| GPQA Diamond | 94.4% | — |
| Humanity's Last Exam | 46.4% | — |
| SimpleQA Verified | 73.5% | — |
| Vectara Hallucination Rate | 10.4% | — |
Multimodal Not comparable
Gemini 3.1 Pro Preview: 37.9 (#69), Olmo 3.1 32b Think: —
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Vision | 1296 | — |
| Blueprint-Bench 2 | 26.5% | — |
| Furniture Assembly | 26.7% | — |
| LMArena Document | 1444 | — |
Multilingual Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 57.0 (#12), Olmo 3.1 32b Think: 38.1 (#231)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Non-English | 1477 | 1209 |
| LMArena Chinese | 1529 | 1242 |
| LMArena French | 1487 | 1260 |
| LMArena German | 1491 | 1262 |
| LMArena Russian | 1498 | 1193 |
| LMArena Spanish | 1479 | 1289 |
| LMArena Japanese | 1493 | — |
| LMArena Korean | 1455 | — |
Instruction Following Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 77.0 (#32), Olmo 3.1 32b Think: 65.6 (#218)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Instruction Following | 1466 | 1247 |
Long Context Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 47.4 (#18), Olmo 3.1 32b Think: 38.6 (#195)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Longer Query | 1483 | 1272 |
| CL-bench | 20.8% | — |
| CL-bench Life | 16.9% | — |
Writing & Preference Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 66.1 (#37), Olmo 3.1 32b Think: 46.2 (#220)
| Benchmark | Gemini 3.1 Pro Preview | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Text | 1481 | 1272 |
| LMArena Creative Writing | 1482 | 1226 |
| LMArena Multi-Turn | 1488 | 1252 |
| EQ-Bench Creative Writing | 1491 | — |
| EQ-Bench 4 | 1142 | — |
Frequently asked questions
Is Gemini 3.1 Pro Preview better than Olmo 3.1 32b Think?
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 37.9 on the Noometry Index.
Is Gemini 3.1 Pro Preview or Olmo 3.1 32b Think better for coding?
Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.5 versus 37.7 in the Noometry coding category.
How many benchmarks do Gemini 3.1 Pro Preview and Olmo 3.1 32b Think share?
15 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Olmo 3.1 32b Think has 15.