Model comparison
o1 vs Step 1o Turbo 202506
o1 is the stronger model overall, scoring 40.9 to 39.7 on the Noometry Index.
Last verified . 14 shared benchmarks.
StepFunSummary
- They share 14 benchmarks with published results for both. o1 scores higher in 7 categories and Step 1o Turbo 202506 in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in long context, where o1 leads 50.3 to 41.0.
Side by side
| o1 | Step 1o Turbo 202506 | |
|---|---|---|
| Provider | OpenAI | StepFun |
| Noometry Index | 40.9 | 39.7 |
| Released | 2024-09-12 | — |
| Weights | Proprietary | Proprietary |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $15 | — |
| Output $ / M tokens | $60 | — |
| Results tracked | 52 | 14 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding o1 leads
o1: 46.1 (#70), Step 1o Turbo 202506: 39.2 (#160)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Coding | 1367 | 1339 |
| Aider Polyglot | 61.7% | — |
| WeirdML | 47.6% | — |
| LiveBench Coding | 69.7% | — |
| CadEval | 56% | — |
| HumanEval+ | 89% | — |
| MBPP+ | 80.2% | — |
Agentic & Tool Use Not comparable
o1: 24.6 (#117), Step 1o Turbo 202506: —
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| Cybench | 10% | — |
| METR Time Horizons | 51.1% | — |
Reasoning o1 leads
o1: 27.9 (#111), Step 1o Turbo 202506: 26.8 (#129)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Hard Prompts | 1371 | 1335 |
| SimpleBench | 41.7% | — |
| ARC-AGI-1 | 30.7% | — |
| Chess Puzzles | 15% | — |
| EnigmaEval | 5.7% | — |
| LiveBench Reasoning | 91.6% | — |
| DTBench | 74.7% | — |
| LiveBench Data Analysis | 65.5% | — |
| LMCA | 22.3% | — |
| Epoch Capabilities Index | 141.91 | — |
| LiveBench | 75.7% | — |
Math Too close to call
o1: 36.1 (#175), Step 1o Turbo 202506: 36.6 (#164)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Math | 1388 | 1318 |
| FrontierMath (Tiers 1-3) | 14.7% | — |
| OTIS Mock AIME 2024-2025 | 73.3% | — |
| LiveBench Math | 80.3% | — |
| MATH Level 5 | 94.7% | — |
| FrontierMath (Feb 2025 set) | 9.3% | — |
Knowledge o1 leads
o1: 41.5 (#110), Step 1o Turbo 202506: 36.1 (#176)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Expert | 1361 | 1308 |
| GPQA Diamond | 76.8% | — |
| Humanity's Last Exam | 8% | — |
| SimpleQA Verified | 41.1% | — |
| Confabulations | 11.7% | — |
Multimodal Step 1o Turbo 202506 leads
o1: 34.2 (#93), Step 1o Turbo 202506: 36.1 (#80)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Vision | 1168 | 1186 |
| GeoBench | 80% | — |
| VPCT | 37% | — |
| SpatialViz-Bench | 41.4% | — |
Multilingual o1 leads
o1: 48.6 (#142), Step 1o Turbo 202506: 45.3 (#173)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Non-English | 1358 | 1313 |
| LMArena Chinese | 1394 | 1380 |
| LMArena German | 1337 | 1314 |
| LMArena Russian | 1356 | 1327 |
| LMArena French | 1344 | — |
| LMArena Japanese | 1346 | — |
| LMArena Korean | 1396 | — |
| LMArena Spanish | 1345 | — |
Instruction Following o1 leads
o1: 74.8 (#86), Step 1o Turbo 202506: 69.2 (#176)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Instruction Following | 1367 | 1310 |
| LiveBench Instruction Following | 81.5% | — |
Long Context o1 leads
o1: 50.3 (#9), Step 1o Turbo 202506: 41.0 (#146)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Longer Query | 1378 | 1348 |
| Fiction.LiveBench | 83.3% | — |
Writing & Preference o1 leads
o1: 55.6 (#144), Step 1o Turbo 202506: 53.1 (#160)
| Benchmark | o1 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Text | 1366 | 1336 |
| LMArena Creative Writing | 1348 | 1307 |
| LMArena Multi-Turn | 1369 | 1340 |
| Short-Story Creative Writing | 70.2% | — |
| LiveBench Language | 65.4% | — |
Frequently asked questions
Is o1 better than Step 1o Turbo 202506?
o1 is the stronger model overall, scoring 40.9 to 39.7 on the Noometry Index.
Is o1 or Step 1o Turbo 202506 better for coding?
o1 scores higher on coding benchmarks: 46.1 versus 39.2 in the Noometry coding category.
How many benchmarks do o1 and Step 1o Turbo 202506 share?
14 benchmarks have published results for both models. o1 has 52 scored results on Noometry and Step 1o Turbo 202506 has 14.