Model comparison
o3 vs Olmo 3.1 32b Instruct
o3 is the stronger model overall, scoring 47.5 to 39.4 on the Noometry Index.
Last verified . 16 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 16 benchmarks with published results for both. o3 scores higher in 8 categories and Olmo 3.1 32b Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o3 leads 54.6 to 36.1.
- Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| o3 | Olmo 3.1 32b Instruct | |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 47.5 | 39.4 |
| Released | 2025-04-16 | — |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $8 | — |
| Results tracked | 63 | 16 |
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Category by category
Coding o3 leads
o3: 46.8 (#64), Olmo 3.1 32b Instruct: 39.5 (#157)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Coding | 1408 | 1347 |
| SWE-bench Verified | 62.3% | — |
| SWE-bench Verified (bash only) | 58.4% | — |
| Aider Polyglot | 81.3% | — |
| GSO | 8.8% | — |
| WeirdML | 52.4% | — |
| CadEval | 74% | — |
| ALE-Bench | 933.55 | — |
Agentic & Tool Use Not comparable
o3: 34.5 (#44), Olmo 3.1 32b Instruct: —
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| Berkeley Function Calling Leaderboard | 63% | — |
| GDPval | 30.8% | — |
| DeepResearch Bench | 45.2% | — |
| OSWorld | 23% | — |
| LMArena Search | 1144 | — |
| METR Time Horizons | 65.4% | — |
Reasoning o3 leads
o3: 32.0 (#78), Olmo 3.1 32b Instruct: 26.4 (#132)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1402 | 1322 |
| ARC-AGI-2 | 6.5% | — |
| SimpleBench | 53.1% | — |
| Kagi LLM Benchmark | 67.6% | — |
| ARC-AGI-1 | 60.8% | — |
| CritPt | 1.4% | — |
| Chess Puzzles | 38% | — |
| EnigmaEval | 13.1% | — |
| Mystery Game Puzzles | 29% | — |
| DTBench | 84.8% | — |
| LMCA | 39.7% | — |
| Epoch Capabilities Index | 146.86 | — |
| ForecastBench | 62.5 | — |
Math o3 leads
o3: 50.2 (#58), Olmo 3.1 32b Instruct: 36.3 (#167)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Math | 1426 | 1305 |
| FrontierMath (Tiers 1-3) | 33.3% | — |
| OTIS Mock AIME 2024-2025 | 84.4% | — |
| Omni-MATH | 71.4% | — |
| MATH Level 5 | 97.8% | — |
| FrontierMath (Feb 2025 set) | 18.7% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge o3 leads
o3: 54.6 (#52), Olmo 3.1 32b Instruct: 36.1 (#175)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Expert | 1402 | 1308 |
| GPQA Diamond | 81.8% | — |
| Humanity's Last Exam | 20.3% | — |
| SimpleQA Verified | 49.4% | — |
| MMLU-Pro | 85.9% | — |
| Confabulations | 14.4% | — |
| GPQA (HELM) | 75.3% | — |
Multimodal Not comparable
o3: 41.4 (#36), Olmo 3.1 32b Instruct: —
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Vision | 1214 | — |
| GeoBench | 74% | — |
| VPCT | 52% | — |
Multilingual o3 leads
o3: 51.7 (#105), Olmo 3.1 32b Instruct: 42.6 (#191)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Non-English | 1401 | 1275 |
| LMArena Chinese | 1437 | 1304 |
| LMArena French | 1430 | 1328 |
| LMArena German | 1420 | 1282 |
| LMArena Korean | 1370 | 1206 |
| LMArena Russian | 1406 | 1268 |
| LMArena Spanish | 1395 | 1336 |
| LMArena Japanese | 1403 | — |
Instruction Following o3 leads
o3: 72.8 (#127), Olmo 3.1 32b Instruct: 68.6 (#187)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1368 | 1299 |
| IFEval | 86.9% | — |
Long Context o3 leads
o3: 53.3 (#6), Olmo 3.1 32b Instruct: 39.9 (#166)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1372 | 1312 |
| Fiction.LiveBench | 88.9% | — |
| CL-bench | 17.8% | — |
Writing & Preference o3 leads
o3: 63.5 (#64), Olmo 3.1 32b Instruct: 50.2 (#185)
| Benchmark | o3 | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Text | 1410 | 1311 |
| LMArena Creative Writing | 1359 | 1264 |
| LMArena Multi-Turn | 1405 | 1309 |
| Short-Story Creative Writing | 83.9% | — |
| EQ-Bench Creative Writing | 1676 | — |
| WildBench | 86.1% | — |
Frequently asked questions
Is o3 better than Olmo 3.1 32b Instruct?
o3 is the stronger model overall, scoring 47.5 to 39.4 on the Noometry Index.
Is o3 or Olmo 3.1 32b Instruct better for coding?
o3 scores higher on coding benchmarks: 46.8 versus 39.5 in the Noometry coding category.
How many benchmarks do o3 and Olmo 3.1 32b Instruct share?
16 benchmarks have published results for both models. o3 has 63 scored results on Noometry and Olmo 3.1 32b Instruct has 16.