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POST

Authorizations

Authorization
string
header
required

All APIs require Bearer Token authentication

Add to request header:

Authorization: Bearer YOUR_API_KEY

Body

application/json
model
string
default:seedance-2.0-text-to-video
required

Seedance 2.0 text-to-video model variant

  • seedance-2.0-text-to-video — Standard
  • seedance-2.0-fast-text-to-video — Fast
Examples:

"seedance-2.0-text-to-video"

"seedance-2.0-fast-text-to-video"

prompt
string
required

Text prompt describing the desired video content.

Notes:

  • Supports Chinese and English
  • Maximum 5000 characters
Required string length: 1 - 5000
Example:

"A corgi running on a rain-soaked street, cinematic shot"

resolution
string
default:720p

Output video resolution. The standard model supports 480p / 720p / 1080p; Fast models support only 480p / 720p.

Examples:

"480p"

"720p"

"1080p"

aspect_ratio
string
default:adaptive

Output video aspect ratio

Options:

  • 16:9, 4:3, 1:1, 3:4, 9:16, 21:9
  • adaptive — Automatically selected by model (default)
Example:

"adaptive"

duration
integer
default:5

Output video duration in seconds. Supports integers from 4 to 15, or -1 to let the model decide. Default 5.

Example:

-1

generate_audio
boolean
default:true

Whether to generate synchronized audio. Default true.

Example:

true

seed
integer
default:-1

Random seed. -1 means auto-generated by model; a fixed integer improves result reproducibility.

Example:

-1

Response

Task created successfully

created
integer

Task creation timestamp

Example:

1757165031

id
string

Task ID

Example:

"task-unified-1757165031-uyujaw3d"

model
string

Actual model name used

object
enum<string>

Specific task type

Available options:
video.generation.task
progress
integer

Task progress percentage (0-100)

Required range: 0 <= x <= 100
Example:

0

status
enum<string>

Task status

Available options:
pending,
processing,
completed,
failed
Example:

"pending"

task_info
object

Asynchronous task information

type
enum<string>

Task output type

Available options:
video
Example:

"video"