# o1-mini vs Step 3.7 Flash

> Step 3.7 Flash is the stronger model overall, scoring 36.5 to 33.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/o1-mini-vs-step-3-7-flash
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Step 3.7 Flash leads 20.9 to 8.9.
- Step 3.7 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | o1-mini | Step 3.7 Flash |
|---|---|---|
| Provider | OpenAI | StepFun |
| Noometry Index | 33.7 | 36.5 |
| Rank | 230 | 207 |
| Context | — | 256K |
| Input $/M | — | $0.18 |
| Output $/M | — | $1.11 |
| Weights | Proprietary | Open |

## Coding

- o1-mini: 35.1 (#218)
- Step 3.7 Flash: 39.4 (#147)

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| Aider Polyglot | 32.9% | — |
| SciCode | — | 40% |
| WeirdML | 36.3% | — |
| LiveBench Coding | 48% | — |
| LMArena Coding | 1362 | — |
| ALE-Bench | — | 694.12 |
| HumanEval+ | 89% | — |
| MBPP+ | 78.8% | — |

## Agentic & Tool Use

- o1-mini: 24.3 (#112)
- Step 3.7 Flash: —

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| Cybench | 10% | — |

## Reasoning

- o1-mini: 8.9 (#340)
- Step 3.7 Flash: 20.9 (#211)

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 18.1% | — |
| NYT Connections (extended) | — | 39.7% |
| ARC-AGI-1 | 14% | — |
| CritPt | — | 2.3% |
| LiveBench Reasoning | 72.3% | — |
| LMArena Hard Prompts | 1333 | — |
| LiveBench Data Analysis | 57.9% | — |
| Epoch Capabilities Index | 135.82 | — |
| LiveBench | 57.8% | — |

## Math

- o1-mini: 33.7 (#168)
- Step 3.7 Flash: 40.9 (#74)

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| OTIS Mock AIME 2024-2025 | 46.9% | — |
| LiveBench Math | 62% | — |
| LMArena Math | 1358 | — |
| MATH Level 5 | 89.2% | — |
| FrontierMath (Feb 2025 set) | 1.7% | — |

## Knowledge

- o1-mini: 34.8 (#180)
- Step 3.7 Flash: —

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| GPQA Diamond | 62.4% | — |
| Confabulations | 18.6% | — |
| LMArena Expert | 1316 | — |

## Multilingual

- o1-mini: 43.8 (#177)
- Step 3.7 Flash: —

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1289 | — |
| LMArena Chinese | 1314 | — |
| LMArena French | 1292 | — |
| LMArena German | 1278 | — |
| LMArena Japanese | 1245 | — |
| LMArena Korean | 1223 | — |
| LMArena Russian | 1283 | — |
| LMArena Spanish | 1302 | — |

## Instruction Following

- o1-mini: 67.0 (#200)
- Step 3.7 Flash: —

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| LiveBench Instruction Following | 65.4% | — |
| LMArena Instruction Following | 1304 | — |

## Long Context

- o1-mini: 40.1 (#156)
- Step 3.7 Flash: —

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1321 | — |

## Writing & Preference

- o1-mini: 48.6 (#196)
- Step 3.7 Flash: —

| Benchmark | o1-mini | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1317 | — |
| LMArena Creative Writing | 1244 | — |
| Short-Story Creative Writing | 64.9% | — |
| LMArena Multi-Turn | 1314 | — |
| LiveBench Language | 40.9% | — |

## FAQ

### Is o1-mini better than Step 3.7 Flash?

Step 3.7 Flash is the stronger model overall, scoring 36.5 to 33.7 on the Noometry Index.

### Is o1-mini or Step 3.7 Flash better for coding?

Step 3.7 Flash scores higher on coding benchmarks: 39.4 versus 35.1 in the Noometry coding category.

### How many benchmarks do o1-mini and Step 3.7 Flash share?

0 benchmarks have published results for both models. o1-mini has 39 scored results on Noometry and Step 3.7 Flash has 5.