ByteDanceMediumHigh

Seedream 4.0

ByteDance's latest image generation model with exceptional prompt understanding and creative capabilities.

70 credits

per image

Advanced language understanding

Creative composition

Excellent text rendering

Multiple style support

High resolution output

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

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llms.txtllms.txt ↗

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "bytedance/seedream-4",
  "input": {
    "prompt": "Modern coffee shop interior with text 'OPEN NOW' in neon sign style, cozy atmosphere, Instagram aesthetic",
    "size": "1024x1024"
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	Text description of the image
`image_input`	array	No	[]	Input image(s) for image-to-image generation. List of 1-10 images for single or multi-reference generation.
`size`	string	No	2K	Output dimensions 1K2K4Kcustom
`aspect_ratio`	string	No	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. match_input_image1:14:33:416:99:163:22:321:9
`width`	integer	No	2048	Custom image width (only used when size='custom'). Range: 1024-4096 pixels.
`height`	integer	No	2048	Custom image height (only used when size='custom'). Range: 1024-4096 pixels.
`sequential_image_generation`	string	No	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). disabledauto
`max_images`	integer	No	1	Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15.
`enhance_prompt`	boolean	No	true	Enable prompt enhancement for higher quality results, this will take longer to generate.

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Social Media Post

Create engaging social content

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "bytedance/seedream-4",
  "input": {
    "prompt": "Modern coffee shop interior with text 'OPEN NOW' in neon sign style, cozy atmosphere, Instagram aesthetic",
    "size": "1024x1024"
  }
}'