Overview
StepFun, also known as StepFun, develops models and products across language, multimodal understanding, voice interaction, and coding. Its official site lists Step model families, AI Studio, an API platform, and developer resources. The company also publishes selected model repositories, including Step-3.7-Flash, and maintains Step Code for coding workflows. These repositories expose particular models or tools, while the hosted studio and API services remain managed products rather than a single open-source application. It is available through hosted APIs and developer-facing tools.