ModelsByteDance7 models

ByteDance's Seedream image models and the Seedance video series.

Seedance 2.5Top

ByteDance · Video · 4–30s · 480p–1080p

API
Video
Image
Open model page →
Saved
Example

Your video will appear here

Fill in the settings and press Run. The result is also saved to your library.

Price

Reference price

No published price yet - this model is not in the public price list.

What the price depends on

  • This model is billed per second of output, so length is the biggest lever on the price.
  • Resolution and quality settings change the price. Change one and the number above follows.
  • A generation the provider fails is not charged. A chat answer is charged for what the model wrote and thought, even if you stop it.

Prices are in credits. What a credit costs is on the pricing page.

Which one to pick

ModelKey specsPrice from
Seedance 2.5Top· you are here4–30s · 480p–1080p—
Seedance 2.0Top4–15s · 480p–4K—
OmniHuman 1.5New——
Seedance 1.5 Pro4, 8, 12s · 480p–1080p—
Seedance 1 Pro5, 10s · 720p, 1080p—

About the model

ByteDance Seedance 2.5: 4 to 30 seconds at 480p to 1080p, from a prompt, start and end frames or dozens of references.

Produces
Video
Takes
text, pictures, sound, video
Length
from 4s to 30s
Frame shape
21:9, 16:9, 4:3, 1:1, 3:4, 9:16
Resolution
480p, 720p, 1080p

What you can set

Every setting of this model and the choices it allows — the same as in the form.

  • Durationrequired
    from 4s to 30s
  • Resolutionrequired
    480p720p1080p
  • Input images
    up to 2 files
  • Sound reference
    up to 10 files
  • Style references
    up to 30 files
  • Motion reference
    up to 10 files
  • Aspect ratio
    Auto21:916:94:31:13:49:16
  • Generate soundtrack
    Add a soundtrack to the clip.

For developers

Run this from your own code

The same request the Generate tab sends, with the settings you have chosen.

Model id:seedance-2-5
curl -X POST https://seedara.ai/api/v1/generate \
  -H "Authorization: Bearer $SEEDARA_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "seedance-2-5",
  "prompt": "Describe the shot: subject, action, camera move, lighting...",
  "params": {
    "duration_seconds": 4,
    "resolution": "480p",
    "aspect_ratio": "auto",
    "generate_audio": false
  }
}'

This snippet updates as you change the form. Copy it once the settings are the ones you want.

Request parameters

What goes in `params`, by the names the API uses.

Required

The model refuses the request without these.

ParameterTypeAccepted valuesDefault
duration

Duration

whole numberany value from 4 to 30—
resolution

Resolution

one of a list480p720p1080p—

Optional

Left out unless you set them - the provider then applies its own default.

ParameterTypeAccepted valuesDefault
image_urls

Input images

imagesup to 2 files—
reference_audio_urls

Sound reference

audio filesup to 10 files—
reference_image_urls

Style references

imagesup to 30 files—
reference_video_urls

Motion reference

videosup to 10 files—
aspect_ratio

Aspect ratio

one of a listauto21:916:94:31:13:49:16—
generate_audio

Generate soundtrack

on / off——

How a generation runs

  1. POST /v1/generate answers immediately with a job_id - it does not wait for the result.
  2. Poll GET /v1/jobs/{id} until status is completed or failed.
  3. A completed job carries output_url - the finished file.
curl https://seedara.ai/api/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $SEEDARA_API_KEY"
Questions

Frequently asked about Seedance 2.5

New
Start now

Your first video —
in a minute

Describe what you want to see — the model does the rest.

Takes you to the settings — prompt, format and price are already there
  • No auto-charges
  • Pay only for a finished result
  • Works are kept in your Library
100credits as a gift
4–30sLength
21:9 · 16:9 · 4:3Frame shape