StepFun (China)
Inference provider
Model creator
- Hosted model listings
- 4
- Models created
- 4
- API base
https://api.stepfun.com/v1- Last verified
- Oct 24, 2026
Inference catalog
Models served by StepFun (China)
Provider-specific identifiers, limits, and source-linked prices.
| Model | Provider model ID | Context | Input / 1M | Output / 1M | Cached / 1M | Capabilities | Verified |
|---|---|---|---|---|---|---|---|
| Step 3.5 FlashStepFun | step-3.5-flash |
256K | $0.105 | $0.314 | $0.021 | ReasoningToolsJSON | Oct 24, 2026 |
| Step 3.5 Flash 2603StepFun | step-3.5-flash-2603 |
256K | $0.105 | $0.314 | $0.021 | ReasoningToolsJSON | Oct 24, 2026 |
| Step 3.7 FlashStepFun | step-3.7-flash |
256K | $0.202 | $1.211 | $0.04 | ReasoningToolsJSON | Oct 24, 2026 |
| Step 5 PreviewStepFun | step-5-preview |
1M | $1.046 | $2.989 | $0.105 | ReasoningToolsJSON | Oct 24, 2026 |
Creator catalog
Models created by StepFun (China)
Canonical model records; availability may include multiple inference providers.
| Model | Input types | Context | Input / 1M | Output / 1M | Released | Verified |
|---|---|---|---|---|---|---|
| Step 3.5 Flashstepfun/step-3.5-flash | 256K | $0.105 | $0.314 | 2026-01-29 | Oct 24, 2026 | |
| Step 3.5 Flash 2603stepfun/step-3.5-flash-2603 | 256K | $0.105 | $0.314 | 2026-04-02 | Oct 24, 2026 | |
| Step 3.7 Flashstepfun/step-3.7-flash | 256K | $0.202 | $1.211 | 2026-05-29 | Oct 24, 2026 | |
| Step 5 Previewstepfun/step-5-preview | 1M | $1.046 | $2.989 | 2026-09-16 | Oct 24, 2026 |