Heygen capabilities

HeyGen turns a written script into a finished video of a talking AI avatar with synchronized lip movement, natural facial expressions, and a chosen voice. Users pick a stock or custom avatar, type or paste the script, select a voice, and render — no camera, studio, or editing required.

Finished videos download as standard MP4 files, and a developer API lets other products generate HeyGen avatar videos, translations, photo avatars, and text-to-speech programmatically — the path for embedding HeyGen output into another tool or pipeline.

HeyGen can animate a single static photo into a full-motion talking video (Avatar IV), and can build a reusable custom avatar — a 'digital twin' — of a specific person from submitted photos or video footage, so that person can appear in any future script-driven video.

HeyGen meters AI video work through a single shared credit balance and gates capability, resolution, and video length across plan tiers: Free, Creator, Pro, Business, and Enterprise.

HeyGen's Video Translator takes existing footage and re-voices it into another language while re-syncing the speaker's lip movements to the new audio, so a video can be localized for a global audience without re-recording. It can also generate captions/subtitles in the target language.