Model comparison
o3-pro vs Olmo 3.1 32b Think
o3-pro is the stronger model overall, scoring 42.9 to 37.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- The widest gap is in long context, where o3-pro leads 72.2 to 38.6.
- Olmo 3.1 32b Think has downloadable open weights; the other is API-only.
Side by side
| o3-pro | Olmo 3.1 32b Think | |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 42.9 | 37.9 |
| Released | 2025-06-10 | — |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $20 | — |
| Output $ / M tokens | $80 | — |
| Results tracked | 12 | 15 |
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Category by category
Coding o3-pro leads
o3-pro: 55.5 (#24), Olmo 3.1 32b Think: 37.7 (#189)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| Aider Polyglot | 84.9% | — |
| WeirdML | 58.2% | — |
| LMArena Coding | — | 1291 |
Reasoning Olmo 3.1 32b Think leads
o3-pro: 23.8 (#171), Olmo 3.1 32b Think: 25.2 (#150)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| ARC-AGI-2 | 4.9% | — |
| Kagi LLM Benchmark | 72.1% | — |
| ARC-AGI-1 | 59.3% | — |
| LMArena Hard Prompts | — | 1272 |
| DTBench | 86.9% | — |
| LMCA | 38.5% | — |
| Epoch Capabilities Index | 147.42 | — |
Math Not comparable
o3-pro: —, Olmo 3.1 32b Think: 36.3 (#168)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Math | — | 1305 |
Knowledge Olmo 3.1 32b Think leads
o3-pro: 29.5 (#238), Olmo 3.1 32b Think: 35.7 (#181)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 23.3% | — |
| LMArena Expert | — | 1295 |
Multilingual Not comparable
o3-pro: —, Olmo 3.1 32b Think: 38.1 (#231)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Non-English | — | 1209 |
| LMArena Chinese | — | 1242 |
| LMArena French | — | 1260 |
| LMArena German | — | 1262 |
| LMArena Russian | — | 1193 |
| LMArena Spanish | — | 1289 |
Instruction Following Not comparable
o3-pro: —, Olmo 3.1 32b Think: 65.6 (#218)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Instruction Following | — | 1247 |
Long Context o3-pro leads
o3-pro: 72.2 (#1), Olmo 3.1 32b Think: 38.6 (#195)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| Fiction.LiveBench | 97.2% | — |
| LMArena Longer Query | — | 1272 |
Writing & Preference o3-pro leads
o3-pro: 57.1 (#133), Olmo 3.1 32b Think: 46.2 (#220)
| Benchmark | o3-pro | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Text | — | 1272 |
| LMArena Creative Writing | — | 1226 |
| Short-Story Creative Writing | 84.4% | — |
| LMArena Multi-Turn | — | 1252 |
Frequently asked questions
Is o3-pro better than Olmo 3.1 32b Think?
o3-pro is the stronger model overall, scoring 42.9 to 37.9 on the Noometry Index.
Is o3-pro or Olmo 3.1 32b Think better for coding?
o3-pro scores higher on coding benchmarks: 55.5 versus 37.7 in the Noometry coding category.
How many benchmarks do o3-pro and Olmo 3.1 32b Think share?
0 benchmarks have published results for both models. o3-pro has 12 scored results on Noometry and Olmo 3.1 32b Think has 15.