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Overview

step-3.7-flash is StepFun’s fast flash model and the successor to Step 3.5 Flash. It adds tool calling and runs a 256K context window with multimodal input (text, image, video) at a cheap cost band. Reach for it when you want fast, low-cost throughput with tool support and the option of image or video input.

Specs

Use this when

  • You want cheap, fast throughput on bulk or high-volume tasks.
  • You need tool calling on a low-cost model.
  • You want image or video input without paying a premium tier.

Pick something else when

Example

Agent query example