Model comparison
o1-pro vs Step 3
Step 3 is the stronger model overall, scoring 40.5 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in reasoning, where Step 3 leads 28.4 to 20.4.
- Step 3 has downloadable open weights; the other is API-only.
Side by side
| o1-pro | Step 3 | |
|---|---|---|
| Provider | OpenAI | StepFun |
| Noometry Index | 31.5 | 40.5 |
| Released | 2025-03-19 | — |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $150 | — |
| Output $ / M tokens | $600 | — |
| Results tracked | 3 | 17 |
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Category by category
Coding Not comparable
o1-pro: —, Step 3: 40.1 (#147)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Coding | — | 1367 |
Reasoning Step 3 leads
o1-pro: 20.4 (#239), Step 3: 28.4 (#105)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| Kagi LLM Benchmark | — | 62.3% |
| ARC-AGI-1 | 23.3% | — |
| EnigmaEval | 6.1% | — |
| LMArena Hard Prompts | — | 1355 |
Math Not comparable
o1-pro: —, Step 3: 37.6 (#148)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Math | — | 1366 |
Knowledge Step 3 leads
o1-pro: 29.7 (#234), Step 3: 36.8 (#164)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| Humanity's Last Exam | 8.1% | — |
| LMArena Expert | — | 1333 |
Multimodal Not comparable
o1-pro: —, Step 3: 35.5 (#86)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Vision | — | 1177 |
Multilingual Not comparable
o1-pro: —, Step 3: 46.3 (#159)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Non-English | — | 1327 |
| LMArena Chinese | — | 1397 |
| LMArena German | — | 1371 |
| LMArena Korean | — | 1269 |
| LMArena Russian | — | 1331 |
| LMArena Spanish | — | 1371 |
Instruction Following Not comparable
o1-pro: —, Step 3: 70.4 (#164)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Instruction Following | — | 1332 |
Long Context Not comparable
o1-pro: —, Step 3: 40.3 (#157)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Longer Query | — | 1326 |
Writing & Preference Not comparable
o1-pro: —, Step 3: 54.3 (#151)
| Benchmark | o1-pro | Step 3 |
|---|---|---|
| LMArena Text | — | 1350 |
| LMArena Creative Writing | — | 1321 |
| LMArena Multi-Turn | — | 1341 |
Frequently asked questions
Is o1-pro better than Step 3?
Step 3 is the stronger model overall, scoring 40.5 to 31.5 on the Noometry Index.
How many benchmarks do o1-pro and Step 3 share?
0 benchmarks have published results for both models. o1-pro has 3 scored results on Noometry and Step 3 has 17.