Reference lock is live. Auto renders on Seedance 2.0 Fast.See the lock
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Character in a black silk dress by a night skylinePrimary

Seedance 2.5

Seedance 2.5 is a named cinematic model with native voice. Generations can run out to 30 seconds. Auto, the default, renders on Seedance 2.0 Fast. The reference lock is what keeps the character, whichever engine you pick.

Text to videoNative audioLip sync9:16 vertical4 to 15 s
Try it in the studio →API reference

Pricing

What this model draws

Plans are a shared credit pool. Spark, Pop, and Supernova totals are on the pricing page.

TierCreditsUnitStatus
cinematic266about 10 seconds of Seedance 2.5Live

Quickstart

Call it from your code

import { Arclight } from "arclight";

const client = new Arclight({ apiKey: process.env.ARCLIGHT_API_KEY });

const task = await client.videos.create({
  character_id: "your-character-id",
  story: "Show the product, then the offer",
  duration: 8,
});
const video = await client.videos.waitForOutput(task.id);
console.log(video.output_url);