Model comparison
Gemini 2.5 Flash vs Olmo 3.1 32b Instruct
Gemini 2.5 Flash and Olmo 3.1 32b Instruct score almost the same on the Noometry Index (39.3 vs 39.4), so choose on price, context window or the category you care about most.
Last verified . 16 shared benchmarks.
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Allen Institute for AI (Ai2)Summary
- They share 16 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 6 categories and Olmo 3.1 32b Instruct in 2 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Gemini 2.5 Flash leads 52.3 to 42.6.
- Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| Gemini 2.5 Flash | Olmo 3.1 32b Instruct | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | |
| Noometry Index | 39.3 | 39.4 |
| Released | 2025-04-17 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.30 | — |
| Output $ / M tokens | $2.50 | — |
| Results tracked | 54 | 16 |
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Category by category
Coding Olmo 3.1 32b Instruct leads
Gemini 2.5 Flash: 35.8 (#220), Olmo 3.1 32b Instruct: 39.5 (#157)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Coding | 1424 | 1347 |
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |
| WeirdML | 41.9% | — |
| ALE-Bench | 661.88 | — |
Agentic & Tool Use Not comparable
Gemini 2.5 Flash: 30.8 (#74), Olmo 3.1 32b Instruct: —
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |
Reasoning Olmo 3.1 32b Instruct leads
Gemini 2.5 Flash: 18.1 (#286), Olmo 3.1 32b Instruct: 26.4 (#132)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1422 | 1322 |
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| Kagi LLM Benchmark | 56.8% | — |
| ARC-AGI-1 | 33.3% | — |
| CritPt | 1.1% | — |
| EnigmaEval | 2.7% | — |
| DTBench | 76.5% | — |
| LMCA | 27.5% | — |
| Epoch Capabilities Index | 143.03 | — |
| ForecastBench | 60.6 | — |
Math Gemini 2.5 Flash leads
Gemini 2.5 Flash: 39.9 (#98), Olmo 3.1 32b Instruct: 36.3 (#167)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Math | 1415 | 1305 |
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| Omni-MATH | 38.5% | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Too close to call
Gemini 2.5 Flash: 36.4 (#168), Olmo 3.1 32b Instruct: 36.1 (#175)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Expert | 1426 | 1308 |
| Humanity's Last Exam | 12.1% | — |
| MMLU-Pro | 63.9% | — |
| Confabulations | 16.8% | — |
| Vectara Hallucination Rate | 7.8% | — |
| GPQA (HELM) | 39% | — |
Multimodal Not comparable
Gemini 2.5 Flash: 41.8 (#32), Olmo 3.1 32b Instruct: —
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Vision | 1253 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |
Multilingual Gemini 2.5 Flash leads
Gemini 2.5 Flash: 52.3 (#88), Olmo 3.1 32b Instruct: 42.6 (#191)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Non-English | 1409 | 1275 |
| LMArena Chinese | 1450 | 1304 |
| LMArena French | 1433 | 1328 |
| LMArena German | 1418 | 1282 |
| LMArena Korean | 1385 | 1206 |
| LMArena Russian | 1415 | 1268 |
| LMArena Spanish | 1421 | 1336 |
| LMArena Japanese | 1405 | — |
Instruction Following Gemini 2.5 Flash leads
Gemini 2.5 Flash: 75.7 (#54), Olmo 3.1 32b Instruct: 68.6 (#187)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1405 | 1299 |
| IFEval | 89.8% | — |
Long Context Gemini 2.5 Flash leads
Gemini 2.5 Flash: 47.5 (#17), Olmo 3.1 32b Instruct: 39.9 (#166)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1419 | 1312 |
| Fiction.LiveBench | 77.8% | — |
Writing & Preference Gemini 2.5 Flash leads
Gemini 2.5 Flash: 53.8 (#157), Olmo 3.1 32b Instruct: 50.2 (#185)
| Benchmark | Gemini 2.5 Flash | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Text | 1417 | 1311 |
| LMArena Creative Writing | 1400 | 1264 |
| LMArena Multi-Turn | 1408 | 1309 |
| Short-Story Creative Writing | 76.5% | — |
| EQ-Bench Creative Writing | 1137 | — |
| WildBench | 81.7% | — |
Frequently asked questions
Is Gemini 2.5 Flash better than Olmo 3.1 32b Instruct?
Gemini 2.5 Flash and Olmo 3.1 32b Instruct score almost the same on the Noometry Index (39.3 vs 39.4), so choose on price, context window or the category you care about most.
Is Gemini 2.5 Flash or Olmo 3.1 32b Instruct better for coding?
Olmo 3.1 32b Instruct scores higher on coding benchmarks: 39.5 versus 35.8 in the Noometry coding category.
How many benchmarks do Gemini 2.5 Flash and Olmo 3.1 32b Instruct share?
16 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Olmo 3.1 32b Instruct has 16.