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bytedance /seedream-4.5:9fe3b828

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. Maximum 4000 characters. BytePlus recommends keeping prompts under 600 English words for best results.
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
Image resolution: 2K (2048px), 4K (4096px), or 'custom' for specific dimensions. Note: 1K resolution is not supported in Seedream 4.5.
aspect_ratio
None
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.
width
integer
2048

Min: 1024

Max: 4096

Custom image width (only used when size='custom'). Range: 1024-4096 pixels.
height
integer
2048

Min: 1024

Max: 4096

Custom image height (only used when size='custom'). Range: 1024-4096 pixels.
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.
disable_safety_checker
boolean
False
Disable the safety checker for generated images. When enabled, input moderation is relaxed to only block illegal content (CSAM). Use responsibly.

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'}