Overview

Transform and edit live video streams in realtime with AI. Our realtime models enable creative style transformations and precise video editing with minimal latency.

Choose between style transformation (Lucy Restyle Live) for artistic effects or video editing and character transformation (Lucy 2.1) for adding, changing, or removing elements and becoming any character.

Available Models

We offer specialized realtime models, each optimized for different use cases:

Model	Use Case	Example Prompts	Best For
Lucy Restyle Live	Style transformation	”Anime style”, “Cyberpunk city”, “Studio Ghibli animation”	Creative effects, artistic filters, visual themes
Lucy 2.1	Video editing + character reference	”Transform into this character”, “Add a dog”, “Change hair to blonde”	Character transformation, object manipulation, scene editing
Oasis 3 Preview	World model / driving simulator	”driving in an urban area”, “driving on a highway at sunset”	World-model simulation, RL training, robotics

Lucy Restyle Live - Video Restyling

Transform the overall visual style and aesthetic of your video stream. Perfect for creative applications, social media filters, and artistic effects.

Lucy 2.1 - Video Editing & Character Reference

Make specific edits to videos by adding, modifying, or removing objects and elements. Lucy 2.1 (lucy-2.1) also supports character reference images — upload any face and see yourself transformed into that character in realtime.

Oasis 3 Preview - Realtime World Model

Set a scene with a text prompt and drive it with actions (throttle + steering); Oasis 3 Preview (oasis-3-preview) generates the next camera frames in realtime — a learned driving simulator you can run reinforcement learning in. Unlike the Lucy models, it uses the dedicated Python gRPC SDK decart-oasis. Learn more →

Quick Start

Installation

npm install @decartai/sdk

Basic Usage

Video Editing (Lucy 2.1)

import { createDecartClient, models } from "@decartai/sdk";

// Use Lucy 2.1 for video editing — supports text prompts and character reference
const model = models.realtime("lucy-latest");

const stream = await navigator.mediaDevices.getUserMedia({
  video: {
    frameRate: model.fps,
    width: model.width,
    height: model.height,
  }
});

const client = createDecartClient({
  apiKey: "your-api-key-here"
});

const realtimeClient = await client.realtime.connect(stream, {
  model,
  onRemoteStream: (editedStream) => {
    videoElement.srcObject = editedStream;
  },
});

// Text-only editing
await realtimeClient.set({ prompt: "Add a small dog in the background", enhance: true });

// Character transformation with a reference image
const characterPhoto = document.querySelector("input[type=file]").files[0];
await realtimeClient.set({
  prompt: "Transform into this character",
  image: characterPhoto,
  enhance: true,
});

Video Restyling (Lucy Restyle Live)

import { createDecartClient, models } from "@decartai/sdk";

// Use Lucy Restyle Live for style transformation
const model = models.realtime("lucy-restyle-2");

const stream = await navigator.mediaDevices.getUserMedia({
  video: {
    frameRate: model.fps,
    width: model.width,
    height: model.height,
  }
});

const client = createDecartClient({
  apiKey: "your-api-key-here"
});

const realtimeClient = await client.realtime.connect(stream, {
  model,
  onRemoteStream: (transformedStream) => {
    videoElement.srcObject = transformedStream;
  },
  initialState: {
    prompt: { text: "Anime style", enhance: true }
  }
});

// Change styles dynamically
realtimeClient.setPrompt("Cyberpunk city");
realtimeClient.setPrompt("Studio Ghibli animation");

Use Cases & Examples

Video Restyling with Lucy Restyle Live

Perfect for creative applications and visual effects:

• Social Media Filters: “Anime style”, “Vintage film”, “Oil painting”
• Content Creation: “Studio Ghibli animation”, “Cyberpunk aesthetic”, “Watercolor art”
• Live Streaming: “Cartoon style”, “Neon synthwave”, “Impressionist painting”
• Virtual Events: “Fantasy world”, “Futuristic setting”, “Medieval theme”

Video Editing & Character Transform with Lucy 2.1

Ideal for content modification, character-driven experiences, and interactive apps:

• Character Transformation: Upload a reference image and become that character — your movements and expressions map onto the reference identity
• Object Addition: “Add a dog running around”, “Add birds flying overhead”, “Add flowers in the foreground”
• Appearance Changes: “Change hair to blonde”, “Add sunglasses”, “Change shirt color to red”
• Object Removal: “Remove the car from the scene”, “Remove the tree”, “Remove background objects”
• Scene Modifications: “Replace the background with a beach”, “Add snow falling”, “Change day to night”

Getting Started

Choose your model based on your use case:

Video Restyling

Transform video styles with the Lucy Restyle Live model. Perfect for creative effects and artistic transformations.

Lucy 2.1

Character transformation and video editing with Lucy 2.1.

Video Editing (Legacy)

Edit video content with the original Lucy model.

Oasis 3 Preview

Drive a realtime world model and train policies in it with the decart-oasis SDK.