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Step 3.7 Flash Thinking

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

Available Providers (1)

Provider Model ID Input Cost Output Cost Context Max Output Docs
NanoGPT stepfun/step-3.7-flash:thinking $0.20/MTok $1.15/MTok 256K 256K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output