Videofrom$0.0586 / s

Seedance 2.0 Fast

Generates video from text, an image, references · 480p to 720p · 4–15 s · native audio

text-to-videoimage-to-videoreference-to-video

curl -X POST https://api.open.sume.com/v1/video-router/generate \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"seedance-2-fast","prompt":"A cinematic tracking shot along a sunlit coastal road","duration":5,"resolution":"480p","aspect_ratio":"16:9","generate_audio":false}'

1. Calling the API

Seedance 2.0 Fast has the model id seedance-2-fast. Send a JSON body to POST https://api.open.sume.com/v1/video-router/generate.

Parameter	Type	Required	Default	Description
model	string	Yes	—	"seedance-2-fast"
prompt	string	Yes	—	What happens in the video.
image_url	string	No	—	First frame (HTTPS image).
end_image_url	string	No	—	Last frame (HTTPS image).
reference_image_urls	string[]	No	—	Reference images (HTTPS).
reference_video_urls	string[]	No	—	Reference videos (HTTPS).
duration	integer	No	5	Seconds, 4–15.
resolution	string	No	480p	Output resolution. Options: 480p, 720p.
aspect_ratio	string	No	16:9	Frame shape. Options: auto, adaptive, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16.
generate_audio	boolean	No	false	Generate a soundtrack with the video.

Pricing

Dollars per unit at each option, from our rate card; a request rounds up to $0.0001. The estimate above is the exact charge.

Option	Price
480p	$0.0586 / s
720p	$0.1264 / s

More models by ByteDance

Price, resolution and duration show each model's full range.

Model	Type	Price	Resolution	Duration
Seedance 2.5	video	$0.1088 – $0.5942 / s	480p – 1080p	4 – 30 s
Seedance 2.0 Mini	video	$0.0294 – $0.0791 / s	480p – 720p	4 – 15 s
Seedance 2.0	video	$0.0732 – $0.3910 / s	480p – 1080p	4 – 15 s
Seedance 1.5 Pro	video	$0.01166 – $0.11664 / s	480p – 1080p	4 – 12 s
OmniHuman 1.5	lipsync	$0.1600 / s	720p – 1080p	2 – 60 s
OmniHuman 2	lipsync	$0.1050 / s	—

3. Queue

A submit answers 202 with the job, its status_url and result_url. Poll the status until it is completed, failed or canceled; failed and canceled jobs are refunded.

GET https://api.open.sume.com/v1/jobs/<job_id>/status
GET https://api.open.sume.com/v1/jobs/<job_id>/result
POST https://api.open.sume.com/v1/jobs/<job_id>/cancel

4. Price before you submit

The estimate is the charge: the same function prices both.

curl -X POST https://api.open.sume.com/v1/open/estimate \
  -H "Content-Type: application/json" \
  -d '{"model":"seedance-2-fast","input":{"prompt":"…"}}'