| Field | ||
|---|---|---|
| Organization | StepFun | |
| Family | Step | |
| Released | 2026-04-02 | |
| Context window | 256K | |
| Max output | 256K | |
| Modalities | TextInputTextOutput | |
| Providers | StepFun Step Plan (Global), StepFun Step Plan (China), EmpirioLabs AI, StepFun (Global), StepFun (China) | |
| Weights | Open | |
| Attachments | - | |
| Reasoning | Native Parameters: reasoning | |
| Tool call | Native Parameters: tools | |
| Structured | - | |
| Temperature | Native Parameters: temperature | |
| Open weight | Native |
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