You're looking at a specific version of this model. Jump to the model overview.

bytedance /seedream-4.5:fffbf9ea

Input schema

The fields you can use to run this model with an API. If you don’t give a value for a field its default value will be used.

Field Type Default value Description
prompt
string
Text prompt for image generation
image_input
array
[]
Input image(s) for image-to-image generation. List of 1-14 images for single or multi-reference generation.
size
None
2K
Only 2K resolution is supported at this point in the beta phase. 4K and custom resolutions will follow soon.
aspect_ratio
None
match_input_image
Image aspect ratio. Only used when size is not 'custom'. Only 1:1 aspect ratio is supported at this point in the beta phase. Other aspect ratios will follow soon.
sequential_image_generation
None
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).
max_images
integer
1

Min: 1

Max: 15

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

Output schema

The shape of the response you’ll get when you run this model with an API.

Schema
{'items': {'format': 'uri', 'type': 'string'},
 'title': 'Output',
 'type': 'array'}