About Lucy 2.0
Lucy 2.0 is a real-time portrait puppet that runs entirely in your browser. You upload one front-facing photo. Your webcam captures your face movement. The photo mirrors that movement.
How it works
Google's MediaPipe FaceLandmarker model runs on your device via WebAssembly. It extracts head rotation and ~50 facial blendshapes (jaw open, eye blink, brow raise, mouth smile, etc.) from each webcam frame, and a triangle-mesh warp applies that motion to the portrait's face region.
Privacy
Nothing leaves your device. There is no server, no upload, no account. Both your portrait and your webcam frames are processed locally in this tab. Closing the tab discards everything.
Limits
- Front-facing portraits only. Profile shots will break.
- Hair and clothing are static — only the face animates.
- Large head turns expose the 2D nature of the warp.
- Recording exports .webm. Safari support is partial.
- First use downloads ~3 MB of model + WebAssembly.
What it is not
Lucy 2.0 does not use neural identity-locked diffusion (LivePortrait, InstantID, etc.). For that quality you'd need a GPU server. This is a landmark-driven warp — closer to a high-quality talking-photo puppet than to neural avatar synthesis.