StepFun, open weights
Step 3.7 Flash
Step 3.7 Flash by StepFun ranks 207th of 354 ranked models on the Noometry Index as of October 2026, with a score of 37.3. Its strongest category is math, where it ranks 82nd. API pricing starts at $0.18 per million input tokens and $1.11 per million output tokens, with a 256K-token context window.
Last verified
Specifications
- Noometry rank
- #207 of 354
- Index score
- 37.3
- Evidence
- Reported 5 results
- Provider
StepFun- Released
- May 29, 2026
- Weights
- Open weights
- Reasoning
- Yes
- Context window
- 256K
- Max output
- 256K
- Input price
- $0.18 / M
- Output price
- $1.11 / M
- Blended price
- $0.42 / M
- Output speed
- Not measured
- Value
- #72 of 219
- Knowledge cutoff
- March 2026
- Input
- text, image, video
- Hugging Face
- stepfun-ai/Step-3.7-Flash
Category scores
Each category score combines every public result we have in that category.
- Coding 40.0
- Reasoning 21.6
- Math 42.9
Strengths and weaknesses
Categories where Step 3.7 Flash places highest and lowest among the models ranked in each, with its score against that category's median.
Closest competitors
The models ranked just above and below Step 3.7 Flash. When scores are this close, price and speed are often the better way to choose.
| Model | Rank | Score | Blended $/M | Speed | |
|---|---|---|---|---|---|
| Llama 3.1 Nemotron 70b Instruct | #203 | 37.6 | — | — | Compare |
| MiniMax-M2 | #204 | 37.4 | $0.52 | 17 | Compare |
| Granite 4.1 8b | #205 | 37.4 | — | — | Compare |
| Gemma 3n E4b IT | #206 | 37.3 | — | 13 | Compare |
| GPT-4.5 | #208 | 37.2 | — | — | Compare |
| Yi-Lightning | #209 | 37.1 | — | — | Compare |
| Qwen Plus | #210 | 37.1 | $0.60 | 37 | Compare |
| Gemini 2.5 Flash-Lite | #211 | 37.0 | $0.18 | 172 | Compare |
Sponsored placements are available on pages like this one. Advertise on Noometry
Benchmark results
Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.
Coding
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| SciCode | 40% | #81 of 121, top 67% | Epoch AI | ||
| ALE-Bench | 694.12 | #70 of 105, top 67% | Epoch AI |
Reasoning
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| NYT Connections (extended) | 39.7% | #67 of 91, top 74% | high reasoning | Lech Mazur benchmarks | |
| CritPt | 2.3% | #71 of 134, top 53% | Epoch AI |
Math
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| MathArena Final-Answer Competitions | 68.5% | #14 of 29, top 49% | MathArena |
API pricing by provider
| Route | Input $/M | Output $/M | Cached input $/M | Checked |
|---|---|---|---|---|
| deepinfra | $0.20 | $1.15 | $0.04 | 2026-10-10 |
| openrouter | $0.20 | $1.15 | $0.04 | 2026-10-10 |
| stepfun | $0.18 | $1.11 | $0.037 | 2026-10-10 |
Compare Step 3.7 Flash
- Step 3.7 Flash vs Step 3.5 Flash
- Step 3.7 Flash vs Gemma 3n E4b IT
- Step 3.7 Flash vs GPT-4.5
- Step 3.7 Flash vs Granite 4.1 8b
- Step 3.7 Flash vs Yi-Lightning
- Step 3.7 Flash vs MiniMax-M2
- Step 3.7 Flash vs Qwen Plus
- Step 3.7 Flash vs GPT-6 Astra
- Step 3.7 Flash vs Claude Fable 5.1
- Step 3.7 Flash vs Gemini 3.8 Flash
- Step 3.7 Flash vs Kimi K3
- Step 3.7 Flash vs Grok 4.6
- Step 3.7 Flash vs Qwen3.8 Max
- Step 3.7 Flash vs GLM-5.3
Other StepFun models
Frequently asked questions
How good is Step 3.7 Flash?
Step 3.7 Flash by StepFun ranks 207th of 354 ranked models on the Noometry Index as of October 2026, with a score of 37.3. Its strongest category is math, where it ranks 82nd. API pricing starts at $0.18 per million input tokens and $1.11 per million output tokens, with a 256K-token context window.
How much does Step 3.7 Flash cost?
Step 3.7 Flash costs $0.18 per million input tokens and $1.11 per million output tokens on StepFun's own API, with cached input at $0.037.
What is Step 3.7 Flash's context window?
Step 3.7 Flash accepts up to 256K tokens of input and can write up to 256K tokens in one response.
Is Step 3.7 Flash open source?
Yes. Step 3.7 Flash's weights are downloadable from Hugging Face (stepfun-ai/Step-3.7-Flash); check the license for commercial terms.
What are Step 3.7 Flash's strengths and weaknesses?
Relative to other ranked models, Step 3.7 Flash places best in math and lowest in reasoning.
What is Step 3.7 Flash best at?
Its best category is math, where it ranks 82nd on Noometry.