AI Avatars.
Be in your own content. Talking-head video, UGC at scale, character creation, dubbing.
An AI avatar is a persistent persona of you, a colleague, or a character. One portrait. One voice clone. Render the same face speaking new scripts, in new languages, across hundreds of clips, without re-shooting. Stensyl's My Avatar feature is powered by HeyGen Avatar 4, the gold standard in AI talking heads, paired with HeyGen V3 Lipsync for audio replacement on existing video.
Open My AvatarWhat avatars unlock.
Social content at scale
Record once, render forever. Your avatar opens every video, hooks every reel, signs off every short. No camera, no studio, no make-up.
Product promotion
Pitch new launches as the founder, demo features as the maker, walk through use cases as the expert. The face that built it tells the story.
Character creation
Build characters for narrative film, training video, or interactive media. A persistent persona keeps the same face across scenes, episodes, and seasons.
Be in your own content, without filming.
Record a 30-second voice sample once. Pick or generate a portrait once. Stensyl saves them as a persistent avatar. From now on, type a script and render a talking-head video in your face, in your voice, in seconds. No camera, no microphone setup, no studio time. Use it for social hooks, course intros, product demos, customer onboarding, or any video where you want the founder's face on the front.
Open My Avatar
HeyGen — the gold standard in talking heads.
HeyGen Avatar 4 is the most respected talking-head model in AI. It infers head movement, micro-expressions, and frame-accurate mouth shapes from the audio waveform alone. The result looks like a recorded performance, not a slideshow. Stensyl integrates Avatar 4 via fal.ai with no extra API tokens, no separate HeyGen subscription, and the same credit pool you use for image, video, 3D, and audio elsewhere on the platform.
About HeyGen
Lipsync for dubbing and localisation.
HeyGen V3 Lipsync replaces audio on any existing video. Upload your clip plus the new audio you want it to speak and HeyGen reproduces frame-accurate lip movement matching the new dialogue. Use it to dub finished video into new languages, swap a placeholder voiceover for the final take, or localise a video library at scale. Returns an SRT subtitle file with every render.
Try V3 Lipsync
Integrated across every studio.
Your avatar auto-appears as a Cast member in Storyboards and Film Studio. Drop the Avatar Video node onto Canvas to wire scripted clips into composable workflows. Right-click any text on a Social Studio slide and pick 'Star me in this' to render the slide as your avatar saying it. Ask Ray to render a clip in chat and she emits a confirm card. One persona, every surface.
Models you can use.
HeyGen Avatar 4 + V3 Lipsync
The gold standard. Talking heads, dub, captions.
Learn more →Runway Act Two
Character performance from a reference video.
Learn more →Kling O3
Multilingual lipsync within full video generation.
Learn more →ElevenLabs
Voice cloning + TTS, the audio engine for every avatar.
Learn more →Frequently asked.
Ready to start? Jump straight in.
Every Stensyl plan includes every model on this page. From £8/month annual. No per-model fees, no surprise charges.