Zhu Yibo (朱毅博) is CTO of StepFun (阶跃星辰), a Shanghai foundation-model company. Before StepFun he was a researcher/manager in ByteDance AML Infrastructure and earlier a senior researcher at Microsoft Research Asia and Microsoft Research Redmond, with systems work including FastPass (SIGCOMM), RDMA, and Gaia (OSDI).123
At a glance
- Current role
- CTO
- Company
- StepFun
- Fields
- Language models, Developer tools
- Sources cited
- 3
- Profile reviewed
Accomplishments
From MSR and ByteDance to StepFun
Google Scholar and conference records list Zhu's systems papers from UC Berkeley (PhD 2017) and Microsoft Research. Industry profiles place him later at ByteDance AML Infrastructure before joining StepFun as CTO of the Chinese LLM startup.123
Other documented roles
Roles the sources document that are not confirmed as current.
- AML Infrastructure (former), ByteDance2
- Senior researcher (former), Microsoft Research1
Where they work
- StepFun 1 person in the wiki
Related people
- Antje BarthLanguage models · Developer tools
- Zhou JingrenLanguage models · Developer tools
- Niklas MuennighoffLanguage models · Developer tools
- Anand ChowdharyDeveloper tools · Language models
- Shantanu JainLanguage models · Developer tools
- Benjamin BossanLanguage models · Developer tools
- Johnny HoLanguage models · Developer tools
- Skyler MiaoLanguage models · Developer tools
- Jiayi WengLanguage models · Developer tools
- Harrison ChaseDeveloper tools · Language models
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References
3 sources · profile reviewed Oct 24, 2026 · data updated Oct 24, 2026