# Daxin Jiang

> Daxin Jiang is co-founder and CEO. StepFun API on Anchor Terminal, with grades, an about and public profiles.

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- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-28

Co-founder and CEO.

Daxin Jiang is co-founder and CEO of StepFun, a Shanghai AI company founded in April 2023 that builds the Step series of language, multimodal and speech models. He was previously a global vice president at Microsoft, and StepFun's founding team came from Microsoft.

- LinkedIn: https://cn.linkedin.com/in/daxin-jiang-00006124

## What Daxin builds

- [StepFun API](https://www.anchorterminal.com/tools/stepfun-api.md), graded E, 44.4/100, in Model APIs & inference. The StepFun API is StepFun's paid model API for its Step language, vision and speech models, including the flagship Step 5 Preview, through OpenAI-style Chat Completions and Responses endpoints and an Anthropic-style Messages endpoint. Co-founder and CEO, researched 2026-10-27.

## Works with

- [Yibo Zhu](https://www.anchorterminal.com/people/yibo-zhu/), Co-founder and CTO

## Backed by

- [Huaqin Technology](https://www.anchorterminal.com/investors/huaqin-technology/)
- [OmniVision Technologies](https://www.anchorterminal.com/investors/omnivision-technologies/)
- [ZTE Corporation](https://www.anchorterminal.com/investors/zte-corporation/)
- [Hong Kong Investment Corporation](https://www.anchorterminal.com/investors/hong-kong-investment-corporation/)

## Questions

### Who is Daxin Jiang?

Daxin Jiang is co-founder and CEO of StepFun, a Shanghai AI company founded in April 2023 that builds the Step series of language, multimodal and speech models. He was previously a global vice president at Microsoft, and StepFun's founding team came from Microsoft.

### What does StepFun make?

Anchor Terminal lists StepFun API from StepFun. The StepFun API is StepFun's paid model API for its Step language, vision and speech models, including the flagship Step 5 Preview, through OpenAI-style Chat Completions and Responses endpoints and an Anthropic-style Messages endpoint.

### Who has invested in StepFun?

The sources our research read name Huaqin Technology, OmniVision Technologies, ZTE Corporation and Hong Kong Investment Corporation.

### How are Daxin's tools graded?

StepFun API is graded E, 44.4 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://cn.linkedin.com/in/daxin-jiang-00006124
- https://yibozhu.com/
- https://www.linkedin.com/in/yibo-zhu-66494750
- https://www.linkedin.com/company/stepfun-ai
- https://x.com/StepFun_ai
- https://platform.stepfun.ai/developer-community
- https://platform.stepfun.com

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.

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