Video Gen Editor

Seedance 2.5: ByteDance's AI Video Model for Long, Consistent Scenes

Seedance 2.5 is ByteDance's high-end video model, and it's the one to reach for when a shot has to hold together. It makes continuous clips of up to 30 seconds in one go, keeps people and products looking the same from start to finish, and follows long, detailed prompts closely. It can also edit or extend footage you already have.

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Seedance 2.5 specs

Made by
ByteDance
Clip length
4 to 30 seconds
Resolutions
480p, 720p, 1080p
Shapes
16:9, 4:3, 1:1, 3:4, 9:16, 21:9
Starts from
Text, Image
Extra inputs
First and last frames, up to 30 reference images, up to 10 reference videos, up to 10 reference audio clips, an input video
Sound
Generated with the video

Seedance 2.5 pricing

Seedance 2.5 price per resolution
ResolutionPer second5-second clip10-second clip
480p$0.102$0.51$1.02
720p$0.23$1.15$2.30
1080p$0.614$3.07$6.14

This model is billed per token, so these are close approximations. The composer shows the exact estimate for your settings before you generate, and failed generations aren't charged. Prices last checked September 24, 2026. Credits come with our plans.

What it's good at

  • Clips of 4 to 30 seconds in a single generation, the longest in the studio.
  • Big reference sets: up to 30 images, 10 videos and 10 audio clips to pin down characters, products, style and sound.
  • Close instruction following, including multi-part prompts and prompts in other languages.
  • Edit mode changes part of a clip and leaves the rest of the shot alone. Extend mode carries a clip past its last frame.
  • First and last frame control for image-to-video.
  • Synchronized sound when you switch audio on.

Best for

  • Ads and product videos

    Reference images keep the product right in every shot. See the AI UGC video generator.

  • Longer story scenes

    Explainers and narrative shots that need more than a few seconds to play out.

  • Editing real footage

    Swap a sky or add an object without a VFX pass, in the AI video editor.

  • Extending clips

    Keep a shot going in the AI video extender.

Things to know

  • It's one of the pricier models, especially at 1080p ($0.614 a second), so draft at 480p first.
  • Seedance is billed per token, so the per-second prices are close approximations. The composer shows the estimate for your exact settings.
  • Editing or extending a video costs a little more per second than generating from scratch.
  • It tops out at 1080p. For 4K, use Gemini Omni Flash 1.1 or LTX-2.5 Fast.

A Seedance 2.5 prompt to try

A barista in a green apron pours latte art into a white cup, close-up. The camera slowly pulls back to reveal a busy morning café, warm window light, the hiss of the steam wand and quiet chatter.

Seedance copes well with a camera move that changes partway through. If you make follow-up shots, copy the barista's description word for word so she looks the same.

Alternatives to Seedance 2.5

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Use Seedance 2.5 for

Frequently asked questions

How long can a Seedance 2.5 video be?

Between 4 and 30 seconds per generation. To go longer, run the clip through Extend mode and keep adding to it.

Can Seedance 2.5 edit an existing video?

Yes. Attach the clip, choose Edit, and describe the change, such as “replace the grey sky with a sunset, keep everything else the same”. The AI video editor opens with this set up.

Is Seedance 2.5 good for ads?

It's one of the best fits. It follows detailed briefs, keeps a product consistent from a reference photo, and can run long enough for a full ad in one clip.

How much does Seedance 2.5 cost?

From $0.102 a second at 480p to $0.614 at 1080p. A 5-second 480p clip costs about $0.51.