All Providers
8 Models
1 Families
256K Max Context
$0.10–$5.21 Input Cost/MTok
$0.30–$16.44 Output Cost/MTok
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Setup
Set the following environment variable to use StepFun (Global):
STEPFUN_API_KEY Models (8)
| Model | Model ID | Input Cost | Output Cost | Context | Capabilities |
|---|---|---|---|---|---|
| Step 3.5 Flash 2603 | step-3.5-flash-2603 | $0.10/MTok | $0.30/MTok | 256K | Reasoning Tools Open |
| Step 3.5 Flash | step-3.5-flash | $0.10/MTok | $0.30/MTok | 256K | Reasoning Tools Open |
| Step 3.7 Flash | step-3.7-flash | $0.18/MTok | $1.11/MTok | 256K | Reasoning Tools Open |
| Step 1 (32K) | step-1-32k | $2.05/MTok | $9.59/MTok | 32.8K | Tools |
| Step 2 (16K) | step-2-16k | $5.21/MTok | $16.44/MTok | 16.4K | Tools |
| StepAudio 2.5 ASR step | stepaudio-2.5-asr | —/MTok | —/MTok | — | |
| StepAudio 2.5 TTS step | stepaudio-2.5-tts | —/MTok | —/MTok | — | |
| Step TTS 2 step | step-tts-2 | —/MTok | —/MTok | — |