
LiveAvatar
Real-time, lifelike AI avatar API for conversational agents — give your AI a human face in minutes.
LiveAvatar is a production-grade real-time AI avatar API from HeyGen that lets you ship lifelike, conversational digital humans on day one. Combining natural facial expression, lip sync, and body language, it enables 24/7 real-time conversations that feel human. Choose from a library of ready-made avatars across age, ethnicity, and style, or create a custom on-brand avatar from just two minutes of footage. A low-latency, high-reliability developer API integrates in minutes, with a Full tier that bundles the LLM, TTS, and infrastructure or a Lite tier for pure avatar streaming. It powers sales agents, customer support, coaching, recruiting, language learning, and thought-leadership digital twins.


























