What is StepFun?

StepFun founder and CEO Jiang Daxin at the 'Step Up' ecosystem open day, February 21, 2025. *Credit: StepFun*

A roman statue comes to life in an ancient plaza, drawing a phone-ready crowd. A yellow car speeds down a racetrack suspended in clouds. A Chinese girl unfurls a banner reading “we will open source.” Clips created with StepFun's 'Step-Video-T2V' AI text-to-video model. Credit: StepFun T2V None of these videos were shot using cameras. Each, though, is the product of user-delivered prompts to Chinese artificial intelligence firm StepFun, which has made wa

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