Bytedance Seedream V4.5 Edit Sequential

Playground

Seedream 4.5 Edit Sequential enables multi-image editing with character and object consistency across multiple input images. Accurately identifies main subjects and maintains continuity while applying controlled edits. Supports 4K resolution. Price = unit_price × max_images.

Features

bytedance/seedream-v4.5/edit-sequential (Multi-Image Editing)

Seedream 4.5 Edit Sequential is ByteDance’s multi-image editing model that accurately identifies main subjects across multiple images and maintains character consistency while applying controlled edits.

Model Highlights

Multi-Image Subject Identification: Accurately identifies main subjects across multiple input images
Character Consistency Lock: Maintains character identity across all edited outputs
Reference Image Fidelity: Preserves facial features, lighting, and color tones
Controllable Generation: Apply consistent edits while maintaining continuity
High Resolution: Supports up to 4K (4096×4096) resolution per image
Professional Quality: Clean edges and minimal artifacts

Use Cases

Batch portrait editing with consistent style
Product series visualization
Brand campaign iterations
Character design variations
E-commerce catalog editing
Marketing visual series

Price

$0.04 per image (Price = unit_price × max_images)

How to Use

Upload source images: Provide multiple base images to edit
Write edit prompt: Describe the consistent changes to apply
Set max_images: Specify number of images
Set size: Maximum resolution 4096×4096
Run: Generate your edited image series

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/bytedance/seedream-v4.5/edit-sequential" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "size": "2048*2048",
    "max_images": 1,
    "enable_base64_output": false,
    "enable_sync_mode": false
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
prompt	string	Yes		-	The positive prompt for the generation.
images	array	No	[]	1 ~ 10 items	The images to edit. A maximum of 10 reference images can be uploaded.
size	string	No	2048*2048	1440 ~ 4096 per dimension	Specify the width and height pixel values of the generated image.Total pixel value range: [25601440, 40964096]
max_images	integer	No	1	1 ~ 15	The maximum number of images that can be generated (up to 15). This value must align with the number of images specified in the prompt above.
enable_base64_output	boolean	No	false	-	If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.
enable_sync_mode	boolean	No	false	-	If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Array of URLs to the generated content (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.has_nsfw_contents	array	Array of boolean values indicating NSFW detection for each output
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Bytedance Seedream V4.5 Edit Bytedance Seedream V4.5 Sequential