ReplicateImage to imageComing soon

bytedance/seedream-4.5

Name: bytedance/seedream-4.5
Brand: Replicate

bytedance/seedream-4.5 is an image to image tool from Replicate that runs in the background and returns images. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Priced by usage

Pricing

$0.052 per image.

Limits

Runs: In the background
Returns: image
Longest queue wait: 3600s
Run deadline: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`prompt` required	text	—	Text prompt for image generation. Maximum 4000 characters. BytePlus recommends keeping prompts under 600 English words for best results.
`size`	JSON	2K	Image resolution: 2K (2048px), 4K (4096px), or 'custom' for specific dimensions. Note: 1K resolution is not supported in Seedream 4.5.
`width`	number (whole) 1024 to 4096	2048	Custom image width (only used when size='custom'). Range: 1024-4096 pixels.
`height`	number (whole) 1024 to 4096	2048	Custom image height (only used when size='custom'). Range: 1024-4096 pixels.
`max_images`	number (whole) 1 to 15	1	Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15.
`image_input`	list	[]	Input image(s) for image-to-image generation. List of 1-14 images for single or multi-reference generation.
`aspect_ratio`	JSON	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.
`sequential_image_generation`	JSON	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).

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "replicate",
    "model": "bytedance/seedream-4.5",
    "input": {
      "prompt": "<prompt>"
    }
  }'