# Yibo Zhu (slim)

> Yibo Zhu is co-founder and CTO. StepFun API on Anchor Terminal, with grades, an about and public profiles.

- Full: https://www.anchorterminal.com/people/yibo-zhu/index.md (~900 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/people/yibo-zhu/index.json · canonical https://www.anchorterminal.com/people/yibo-zhu/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Co-founder and CTO.

Yibo Zhu is a co-founder of StepFun, the Shanghai AI company behind the Step model series, where he leads systems work.

- LinkedIn: https://www.linkedin.com/in/yibo-zhu-66494750

## What Yibo 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 CTO, researched 2026-10-27.

## Works with

- [Daxin Jiang](https://www.anchorterminal.com/people/daxin-jiang/), Co-founder and CEO

## 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 Yibo Zhu?

Yibo Zhu is a co-founder of StepFun, the Shanghai AI company behind the Step model series, where he leads systems work.

### What does StepFun make?

Anchor Terminal lists StepFun API from StepFun.

### Who has invested in StepFun?

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

### How are Yibo'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.