Seedance 2.5 Video Extend

NewPremiumHot

Seedance · Video · Video → Video

Stitch up to 10 clips into one continuous, extended video.

Model ID: seedance-2.5-video-extendWorkflow: seedance

Multi-Video InputAudio1080p4-30 sec

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('seedance-2.5-video-extend', {
  prompt: "A serene mountain lake at golden hour, ultra detailed",
  aspectRatio: "adaptive",
  resolution: "1080p",
  duration: 15,
  videoUrls: [
    "https://cdn.example.com/input.mp4"
  ]
});

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

Parameters

7 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	`—`	—
`aspectRatio`	`enum`	no	`adaptive`	adaptive
`resolution`	`enum`	no	`1080p`	480p, 720p, 1080p
`duration`	`range`	no	`15`	4–30 (step 1)
`generateAudio`	`boolean`	no	`true`	—
`outputFormat` Format	`enum`	no	`mp4`	mp4, mov
`videoUrls` Source Videos	`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": "seedance-2.5-video-extend"
}