All Providers
2 Models
256K Max Context
$0.10–$0.10 Input Cost/MTok
$0.29–$0.30 Output Cost/MTok
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Setup
Set the following environment variable to use StepFun:
STEPFUN_API_KEY Models (2)
| Model | Model ID | Input Cost | Output Cost | Context | Capabilities |
|---|---|---|---|---|---|
| Step 3.5 Flash | step-3.5-flash | $0.10/MTok | $0.29/MTok | 256K | Reasoning Tools Open |
| Step 3.5 Flash 2603 | step-3.5-flash-2603 | $0.10/MTok | $0.30/MTok | 256K | Reasoning Tools Open |