# Yibo Zhu

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

- Canonical: https://www.anchorterminal.com/people/yibo-zhu/
- Markdown: https://www.anchorterminal.com/people/yibo-zhu/index.md (~900 tokens)
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- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- 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 CTO.

Yibo Zhu is a co-founder of StepFun, the Shanghai AI company behind the Step model series, where he leads systems work. He has experience building and running large-scale systems and previously worked at ByteDance and Google.

- 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. He has experience building and running large-scale systems and previously worked at ByteDance and Google.

### 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 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. 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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