Vidu S1

Vidu S1 is a real-time interactive digital human platform. It lets teams build AI avatars that can see, hear, and speak in live video sessions. Developers use its streaming video generation API to create avatars in human, anime, or mascot styles. The avatars respond to voice, text, and visual input through a bidirectional perception model. This isn't a static chatbot — it's a live, two-way interaction delivered over RTC media channels.

The platform works through a structured integration flow. A server-side call creates a session and returns RTC room details. The client joins the audio or video channel, publishes user media, and subscribes to the avatar's output. A WebSocket control channel manages the ready signal, heartbeat, and hangup logic. Vidu S1 also integrates with HeyGen API for avatar video and Replicate for async model jobs, all routed through a single orchestration layer. This setup lets teams plan enterprise pilots with clear latency, persona safety, and usage tracking.

Who needs this? Teams in social platforms, ecommerce, edtech, gaming, and customer experience. Use cases include AI companions with memory loops, virtual idols that interact with fans, training sessions with live guided video, and live commerce hosts that explain products. Vidu S1 is aimed at product teams that want to prototype and evaluate real-time digital humans without building the infrastructure from scratch.