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StepFun

StepFun

A chat and image-understanding entry that reads long text and screenshots

Mainland China Free APIFreeChina mainlandAPI available
Open StepFun

Mixed text-and-image material is a common test: screenshots, documents with figures, long illustrated instructions. It reads the image before answering, and it also handles long text pasted in one go. Accuracy depends on image clarity; small table text and dense layouts are error-prone, so key numbers should be checked against the original image. The API is open to developers, and you can compare it with others on the same sample set before choosing.

What it does

  • Image input for screenshots and mixed text-image content
  • Long text in one pass with follow-up questions across the document
  • Chinese Q and A and rewriting
  • Developer API for use in applications
  • Web conversation management with retrievable history

Who it is for

  • Your material is screenshots or illustrated documents that text-only tools cannot read
  • A long explanation needs its structure mapped before a section-by-section check
  • Add image understanding to an internal tool
  • Compare answer styles across mainland Chinese models

How to get started

  1. Upload a real screenshot and see how completely it restates the content
  2. Ask about long material in batches and require quoted passages
  3. Check numbers and table values against the original image

Related keywords

Compiled by U2 Toolbox after checking the official site. Last updated 2026-10-22. Spotted an error or a tool we should add? Leave a note in the journal or follow the instructions on the directory home page.

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