All Models

Step 3.7 Flash (Free)

Reasoning Tool Calling Attachments Open Weights
Providers 1
Released May 29, 2026
Input Modalities text, image
Output Modalities text
Tarsk Use coding

Available Providers (1)

Provider Model ID Input Cost Output Cost Context Max Output Docs
ZenMux stepfun/step-3.7-flash-free $0/MTok $0/MTok 256K 256K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output