StepFun
StepFun develops the Step model families for language, visual tasks and speech. Its catalog includes hosted APIs and published research weights.
Company & leadership
- Chief executive
- Jiang Daxin; confirmed in StepFun's April 2026 cooperation announcement.
- Chairman
- Yin Qi (印奇), appointed in January 2026.
- Main office
- Floor 30, 701 Yunjin Road, Xuhui District, Shanghai, China, as recorded in the May 2026 filing.
- Legal entity
- 上海阶跃星辰智能科技股份有限公司, a Chinese joint-stock company.
- Control
- The May 2026 investment disclosure identifies Yin Qi as controlling shareholder and actual controller. This is a dated ownership statement.
Founder
- Jiang Daxin (姜大昕), identified as founder by investor Qiming Venture Partners.
