Bytedance Seedream V4.5 Sequential

Playground

Seedream 4.5 Sequential generates multiple consistent images in sequence with character and object consistency. Features multi-image generation with unified palette, lighting, and style across all outputs. Supports 4K resolution and enhanced typography. Price = unit_price × max_images.

Features

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

Seedream 4.5 Sequential is ByteDance’s multi-image generation model that maintains character and object consistency across multiple outputs. Perfect for creating series KV, comic strips, and brand visual sets.

Model Highlights

Character Consistency: Locks onto character identity across all generated images
Object Consistency: Maintains consistent objects, props, and elements
Unified Style: Consistent palette, lighting, and camera across all outputs
Multi-Image Output: Generate up to multiple images in a single request
High Resolution: Supports up to 4K (4096×4096) resolution per image
Enhanced Typography: Clear text rendering for branded content

Use Cases

Comic strip and panel generation
Brand KV series with consistent characters
Product lineup visualization
Storyboard creation
Social media content series
Marketing campaign sequences

Price

$0.04 per image (Price = unit_price × max_images)

How to Use

Enter your prompt: Describe the scene, characters, and consistency requirements
Set max_images: Specify the number of images to generate
Set size: Choose width/height up to 4096×4096
Run: Generate your consistent 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/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.
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 Sequential Bytedance Uso