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POST
/
generation
/
bytedance
/
seedream-4.5
Seedream 4.5
curl --request POST \
  --url https://open.ppt.video/api/v1/generation/bytedance/seedream-4.5 \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "<string>"
}
'
{
  "id": "<string>",
  "status": "starting"
}
Seedream 4.5 image model

Authorizations

​
Authorization
string
header
required

API Key for API endpoints

Body

application/json
​
prompt
string
required

Text prompt for image generation

​
webhook
string<uri>

Webhook URL for receiving updates

​
size
enum<string>
default:2K

Image resolution: 2K (2048px), 4K (4096px), or 'custom' for specific dimensions. Note: 1K resolution is not supported in Seedream 4.5.

Available options:
2K,
4K,
custom
​
width
integer
default:2048

Custom image width (only used when size='custom'). Range: 1024-4096 pixels.

Required range: 1024 <= x <= 4096
​
height
integer
default:2048

Custom image height (only used when size='custom'). Range: 1024-4096 pixels.

Required range: 1024 <= x <= 4096
​
max_images
integer
default:1

Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15.

Required range: 1 <= x <= 15
​
image_input
string<uri>[]

Input image(s) for image-to-image generation. List of 1-14 images for single or multi-reference generation.

​
aspect_ratio
enum<string>
default:match_input_image

Image aspect ratio. Only used when size is not 'custom'. Use 'match_input_image' to automatically match the input image's aspect ratio.

Available options:
match_input_image,
1:1,
4:3,
3:4,
16:9,
9:16,
3:2,
2:3,
21:9
​
sequential_image_generation
enum<string>
default:disabled

Group image generation mode. 'disabled' generates a single image. 'auto' lets the model decide whether to generate multiple related images (e.g., story scenes, character variations).

Available options:
disabled,
auto

Response

Generation status

​
id
string
required

Generation id.

​
status
enum<string>
required

Generation status

Available options:
starting,
processing,
succeeded,
failed,
canceled