Renders a compatible HeyGen avatar with Avatar IV or Avatar III.
Brands
HeyGen
Speech synthesis, avatar creation, talking-avatar video, and video translation workflows.
Models
Video
HeyGen Video
View details →Video Agent develops a finished video from one brief, while Avatar Video renders a completed HeyGen look. Video Translation localizes footage into another language. Lipsync keeps the supplied video performance and synchronizes a separate audio track in Speed or Precision mode.
Synchronizes a supplied audio track to the visible speaker in an existing video.
Builds one complete video from a prompt, including script, presenter, scenes, and rendering.
Turns one portrait image into a talking-presenter video using a script or prerecorded audio.
Translates an uploaded video into selected languages with voice cloning and lip synchronization.
Models
Audio
HeyGen Starfish TTS
View details →HeyGen Starfish TTS converts up to 5,000 characters of text into a standalone audio file. Choose a compatible voice from the HeyGen voice browser, save it to your library, and adjust speech speed from 0.5× to 2×. The language is detected automatically; use supported break tags only when the script needs an explicit pause.
Converts text into speech with a saved HeyGen voice supported by the Starfish engine.
Models
Avatar
HeyGen Avatar Creation
View details →Photo Avatar creates a reusable HeyGen identity from one image and a name. Creation is asynchronous, so keep the submitted name, wait for the resulting look to complete, and check its supported Avatar III and Avatar IV engines before generating video.
Create a reusable HeyGen photo avatar from one authorized still image.
Archived HeyGen workflow for creating a reusable digital-twin avatar from authorized training footage.
Create a synthetic HeyGen avatar from a written visual description with optional image references.