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bytedance/seedream/v5/pro/layerize

Splits a finished image into independent, editable transparent-PNG layers — background plus separate elements, from a text description, returning 2 to 17 layers per call for non-destructive reuse in design tools.
Inference
Commercial use
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Schema
LLMs
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Table of contents

About

Decompose an image into a base image and independently editable layers.

1. Calling the API#

Install the client#

The client provides a convenient way to interact with the model API.

npm install --save @fal-ai/client

Setup your API Key#

Set FAL_KEY as an environment variable in your runtime.

export FAL_KEY="YOUR_API_KEY"

Submit a request#

The client API handles the API submit protocol. It will handle the request status updates and return the result when the request is completed.

import { fal } from "@fal-ai/client";

const result = await fal.subscribe("bytedance/seedream/v5/pro/layerize", {
  input: {
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/seedreamv45/seedream_v45_edit_input_1.png"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);

2. Authentication#

The API uses an API Key for authentication. It is recommended you set the FAL_KEY environment variable in your runtime when possible.

API Key#

In case your app is running in an environment where you cannot set environment variables, you can set the API Key manually as a client configuration.
import { fal } from "@fal-ai/client";

fal.config({
  credentials: "YOUR_FAL_KEY"
});

3. Queue#

Submit a request#

The client API provides a convenient way to submit requests to the model.

import { fal } from "@fal-ai/client";

const { request_id } = await fal.queue.submit("bytedance/seedream/v5/pro/layerize", {
  input: {
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/seedreamv45/seedream_v45_edit_input_1.png"
  },
  webhookUrl: "https://optional.webhook.url/for/results",
});

Fetch request status#

You can fetch the status of a request to check if it is completed or still in progress.

import { fal } from "@fal-ai/client";

const status = await fal.queue.status("bytedance/seedream/v5/pro/layerize", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
  logs: true,
});

Get the result#

Once the request is completed, you can fetch the result. See the Output Schema for the expected result format.

import { fal } from "@fal-ai/client";

const result = await fal.queue.result("bytedance/seedream/v5/pro/layerize", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);

4. Files#

Some attributes in the API accept file URLs as input. Whenever that's the case you can pass your own URL or a Base64 data URI.

Data URI (base64)#

You can pass a Base64 data URI as a file input. The API will handle the file decoding for you. Keep in mind that for large files, this alternative although convenient can impact the request performance.

Hosted files (URL)#

You can also pass your own URLs as long as they are publicly accessible. Be aware that some hosts might block cross-site requests, rate-limit, or consider the request as a bot.

Uploading files#

We provide a convenient file storage that allows you to upload files and use them in your requests. You can upload files using the client API and use the returned URL in your requests.

import { fal } from "@fal-ai/client";

const file = new File(["Hello, World!"], "hello.txt", { type: "text/plain" });
const url = await fal.storage.upload(file);

Read more about file handling in our file upload guide.

5. Schema#

Input#

prompt string

Optional instructions describing which elements to separate. When empty, the model automatically separates the major elements. Normalized <bbox>left top right bottom</bbox> tags may be used for precise coordinate targeting. Default value: ""

image_url string* required

URL of the image to decompose into a base image and independently editable layers. The image must contain between 512x512 and 6000x6000 total pixels, have an aspect ratio between 1/16 and 16, and be no larger than 30 MB.

image_size ImageSizeEnum

Resolution tier for the output base image and layers. auto adapts to the input image while preserving each element's aspect ratio. Default value: "auto"

Possible enum values: auto, auto_1K, auto_1.5K, auto_2K

sync_mode boolean

If True, the media will be returned as a data URI and the output data won't be available in the request history.

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Default value: true

enhance_prompt_mode EnhancePromptModeEnum

Prompt optimization mode. standard prioritizes image quality; fast reduces generation time. Default value: "standard"

Possible enum values: standard, fast

{
  "prompt": "Return name and description in english.",
  "image_url": "https://storage.googleapis.com/falserverless/example_inputs/seedreamv45/seedream_v45_edit_input_1.png",
  "image_size": "auto",
  "enable_safety_checker": true,
  "enhance_prompt_mode": "standard"
}

Output#

layers list<SeedDream50ProLayer>* required

The base image followed by up to 16 separated layers, ordered by increasing z_index.

{
  "layers": [
    {
      "image": {
        "url": "",
        "content_type": "image/png",
        "file_name": "z9RV14K95DvU.png",
        "file_size": 4404019,
        "width": 1024,
        "height": 1024
      }
    }
  ]
}

Other types#

SeedDream50ProLayer#

image Image* required

The generated base image or separated layer.

z_index integer* required

Stacking order from bottom to top. The base image always has z_index 0.

bounding_box SeedDream50ProLayerBoundingBox

The layer's position in the base image coordinate system. Omitted for the base image.

name string

Model-generated label for the layer. Omitted for the base image.

description string

Detailed model-generated description of the layer. Omitted for the base image.

SeedDream50ProLayerBoundingBox#

absolute list<integer>* required

Layer bounds as [left, top, right, bottom] pixel coordinates in the output base image coordinate system.

normalized list<integer>* required

Layer bounds as [left, top, right, bottom] coordinates normalized to the integer range [0, 1000].

ImageSize#

width integer

The width of the generated image. Default value: 512

height integer

The height of the generated image. Default value: 512

Image#

url string* required

The URL where the file can be downloaded from.

content_type string

The mime type of the file.

file_name string

The name of the file. It will be auto-generated if not provided.

file_size integer

The size of the file in bytes.

width integer

The width of the image in pixels.

height integer

The height of the image in pixels.

Seed2MiniMessage#

role RoleEnum* required

The role of the message author.

Possible enum values: system, user, assistant

content string | list<object>* required

The content of the message. Can be a string for text-only messages, or a list of content parts for multimodal messages (e.g. with images).

File#

url string* required

The URL where the file can be downloaded from.

content_type string

The mime type of the file.

file_name string

The name of the file. It will be auto-generated if not provided.

file_size integer

The size of the file in bytes.

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