StepFun
StepFun develops the Step family of general-purpose language models.
Official website or profileFamilies
1
Model versions
3
Providers
12
Resources and contact
Model families
Step
ActiveStep model family by StepFun.
3 versions
Model versions
3 of 3 model versions
| Model | Organization | Family | Provider access | Context | Max output | Input | Output | Reasoning | Tool call | Structured | Temperature | Weights | Official price | Released | Updated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Step 3.7 Flash stepfun/step/3-7-flash | StepFun | Step | 256K | 256K | TextImageVideo | Text | Yes | Yes | -No | Yes | Open weight | input $0.185/M · cache read $0.037/M output $1.11/M | 2026-05-29 | 2026-06-29 | ||
| Step 3.5 Flash 2603 stepfun/step/3-5-flash-2603 | StepFun | Step | 256K | 256K | Text | Text | Yes | Yes | -No | Yes | Open weight | input $0.1/M · cache read $0.02/M output $0.3/M | 2026-04-02 | 2026-04-02 | ||
| Step 3.5 Flash stepfun/step/3-5-flash | StepFun | Step | 256K | 256K | Text | Text | Yes | Yes | -No | Yes | Open weight | input $0.1/M · cache read $0.02/M output $0.3/M | 2026-01-29 | 2026-06-15 |