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POST
doubao-seedream-5.0-pro Interface

Authorizations

Authorization
string
header
required

##All APIs require Bearer Token authentication##

Get API Key:

Visit API Key Management Page to get your API Key

Add to request header:

Body

application/json
model
enum<string>
default:doubao-seedream-5.0-pro
required

Image generation model name

Available options:
doubao-seedream-5.0-pro
Example:

"doubao-seedream-5.0-pro"

prompt
string
required

Prompt describing the image you want to generate, or describing how to edit the input image, limited to 2000 tokens

Maximum string length: 2000
Example:

"A serene lake reflecting the beautiful sunset"

n
integer

Number of images to generate, Pro only supports 1

Note:

  • Each request will pre-charge based on the value of n, actual charges based on the number of images generated
Example:

1

size
string
default:auto

Size of generated image, supports two formats:

Method 1 - Ratio format:

  • auto, 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 9:21
  • Works with the quality parameter to automatically generate an image at the corresponding aspect ratio and resolution, without manually specifying pixels

Method 2 - Pixel format:

  • Width x height, e.g.: 1024x1024, 2048x2048
  • Total pixel range: [921600, 4624220]
  • Aspect ratio range: [1/16, 16]
  • Both width and height must be greater than 14px

Defaults to auto when size is omitted

Example:

"16:9"

quality
enum<string>
default:1K

Resolution tier, used with the ratio format of size, defaults to 1K.

Available options:
1K,
2K
Example:

"2K"

prompt_priority
enum<string>
default:standard

Prompt optimization strategy, used to set the mode for prompt optimization

Options:

  • standard: Standard mode, higher quality output, longer processing time
Available options:
standard
Example:

"standard"

image_urls
string<uri>[]

Reference image URL list for image-to-image and image editing features

Note:

  • Single request supports input image quantity: 10 images
  • Image size: no more than 30MB
  • Supported image formats: .jpeg, .jpg, .png, .webp, .bmp, .tiff, .gif, .heic, .heif
  • Aspect ratio (width/height) range: [1/16, 16]
  • Width and height (px) > 14
  • Total pixels: no more than 6000×6000
  • Image URLs must be directly viewable by the server, or the image URL should trigger direct download when accessed (typically these URLs end with image file extensions, such as .png, .jpg)
Maximum array length: 10
Example:
output_format
enum<string>
default:jpeg

Output image format

Options:

  • png: PNG format
  • jpeg: JPEG format
Available options:
png,
jpeg
Example:

"jpeg"

watermark
boolean
default:false

Whether to add a watermark to the generated image

Example:

false

callback_url
string<uri>

HTTPS callback address after task completion

Callback Timing:

  • Triggered when task is completed, failed, or cancelled
  • Sent after billing confirmation is completed

Security Restrictions:

  • Only HTTPS protocol is supported
  • Callback to internal IP addresses is prohibited (127.0.0.1, 10.x.x.x, 172.16-31.x.x, 192.168.x.x, etc.)
  • URL length must not exceed 2048 characters

Callback Mechanism:

  • Timeout: 10 seconds
  • Maximum 3 retries on failure (retries after 1 second/2 seconds/4 seconds)
  • Callback response body format is consistent with the task query API response format
  • Callback address returning 2xx status code is considered successful, other status codes will trigger retry
Example:

"https://your-domain.com/webhooks/image-task-completed"

Response

Image generation task created successfully

created
integer

Task creation timestamp

Example:

1757165031

id
string

Task ID

Example:

"task-unified-1757165031-seedream5pro"

model
string

Actual model name used

Example:

"doubao-seedream-5.0-pro"

object
enum<string>

Specific task type

Available options:
image.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

Async task information

type
enum<string>

Task output type

Available options:
text,
image,
audio,
video
Example:

"image"

usage
object

Usage and billing information