LTX 2.3 Retake

LTX · Video · Video → Video

Retake video with new direction — replace audio, video, or both.

Model ID: ltx-v2.3-retakeWorkflow: ltx-2.3/retake-video

Video InputUp to 20s

Try on Playground ↗

SDK API Advanced Usage Pricing

Install the SDK

The SDK targets Node 20+ and ships with TypeScript types.

npm

npm install @picsart/ai-sdk

Authenticate

Create a client once with your API key — it's sent as a bearer token on every request.

TypeScript

import { createClient } from '@picsart/ai-sdk';

const ai = createClient({
  apiKey: process.env.PICSART_API_KEY, // sent as: Authorization: Bearer <key>
  apiUrl: 'https://api.picsart.com',
});

Run the model

Call the model with its parameters. This example uses the required ones.

TypeScript

import { createClient } from '@picsart/ai-sdk';

const ai = createClient({
  apiKey: process.env.PICSART_API_KEY,
  apiUrl: 'https://api.picsart.com',
});

const result = await ai.generate('ltx-v2.3-retake', {
  prompt: "A serene mountain lake at golden hour, ultra detailed",
  duration: 5,
  videoUrl: "https://cdn.example.com/input.mp4"
});

console.log(result.url); // video URL

Parameters

5 parameters. Required ones must be supplied; the rest fall back to their defaults. The API takes these same names over HTTP.

Parameter	Type	Required	Default	Details
`prompt` Prompt	`text`	yes	`—`	max 5000 chars
`duration`	`range`	no	`5`	2–20 (step 1)
`retakeMode` Retake Mode	`enum`	no	`replace_audio_and_video`	replace_audio_and_video, replace_audio, replace_video
`startTime` Start Time (s)	`range`	no	`—`	0–20 (step 1)
`videoUrl` Source Video	`file (video)`	yes	`—`	—

Output

generate() resolves once the job completes. A video URL.

Result

{
  "url": "https://cdn.picsart.com/…/result",
  "results": [
    {
      "url": "https://cdn.picsart.com/…/result"
    }
  ],
  "model": "ltx-v2.3-retake"
}