ByteDanceVideo model

Seedance 2.5

Thirty seconds, one take.

Seedance 2.5 sample output
Up to 30sNative audio30 references
From 58 credits per 5 secondsGenerate with Seedance 2.5

Why Seedance 2.5

Thirty seconds, uncut

A full clip in one pass, with no stitching and no seam where two generations were taped together. Twice the ceiling of Seedance 2.0.

Made for

  • Full length ads

    A thirty second spot is the standard unit of paid media. This renders one as one thing, not as a stitched sequence.

  • Multi shot narrative

    Set up, develop and pay off inside a single generation, with the same cast in every beat.

  • Explainers and demos

    Long enough to walk through a product properly, with narration generated alongside the picture.

  • Character driven UGC

    Thirty reference images pin a presenter hard enough to reuse them across a whole campaign.

  • Music led social

    Native audio means the cut lands on the beat instead of being nudged into place in an editor.

The specs

Provider
ByteDance, via BytePlus ModelArk
Resolution
480p, 720p, native
Frame rate
24fps
Duration
4 to 30 seconds in one generation
Audio
Native, generated with the picture
Modes
Text to video, image to video, video to video
Aspect ratios
21:9, 16:9, 4:3, 1:1, 3:4, 9:16
Reference images
Up to 30 per generation
Reference videos
Up to 10 per generation
Audio inputs
Up to 10 per generation
Cost
From 58 credits per 5 seconds

Or pick

FLUX 3 Video Draft: You are still exploring and want the cheapest possible look at an idea.

Straight answers

What is Seedance 2.5?

Seedance 2.5 is ByteDance's long form video model, launched in July 2026. It generates up to 30 seconds of video with native audio in a single pass, and accepts up to 30 reference images, 10 reference videos and 10 audio inputs per request.

How is Seedance 2.5 different from Seedance 2.0?

Three things. The clip ceiling doubles from 15 to 30 seconds, it generates audio where 2.0 is silent, and the reference budget goes from 9 images to 30. The trade is resolution: 2.0 renders natively at 1080p, 2.5 at 720p.

Does Seedance 2.5 do 1080p or 4K?

Not on APImage. BytePlus publishes native rates for 480p and 720p only, and the higher tiers offered elsewhere are upscales of a 720p render. We list what the model actually produces.

How much does Seedance 2.5 cost?

From 58 credits per 5 seconds, scaling with length. A full 30 second take costs roughly six times the five second rate, and the exact figure is shown before you generate.

Can it keep the same character across a whole clip?

That is what the 30 image reference budget is for. Pin a face from several angles and it holds across the full 30 seconds, which is the length at which weaker models start drifting.

Is Seedance 2.5 included in my plan?

Yes. Every model on APImage is priced in the same credits out of the same pool. New models never cost extra and never need a separate subscription.

How do I use it?

Open the video studio and pick Seedance 2.5. Upload your references. Up to 30 images, 10 clips and 10 audio files, tagged so the prompt can address them. Write the scene, including what you want to hear as well as what you want to see. Set the length anywhere up to 30 seconds and generate.

Seedance 2.5
is live.

Generate with Seedance 2.5
From 58 credits per 5 secondsOne credit poolNo per-model surchargeAPI and MCP