Seedream 5.5 Layer Decomposition API

Split one image into named, transparent PNG layers.

PlaygroundAPI
Pricing
~23.37s
POST /v2/seedream-5.5-layer-decomposition · submit + poll
 1# pip install "segmind>=1.1.0"
 2# export SEGMIND_API_KEY="YOUR_API_KEY"
 3import segmind
 4
 5# Async (v2): submit to the queue and block until COMPLETED.
 6# run() returns the final result dict (600s deadline, 1.0s poll by default).
 7result = segmind.run(
 8    "seedream-5.5-layer-decomposition",
 9    image="https://segmind-resources.s3.amazonaws.com/input/seedream-5.5-layer-decomposition-input-83de5eae.jpg",
10    prompt="",
11    max_images=10,
12    text_recognition=False,
13    size="auto",
14    output_format="png",
15    watermark=False,
16)
17print(result["status"])                      # COMPLETED
18print(result.get("output"))                  # model output (e.g. media URL)
19print(result["metrics"]["inference_time"])   # server compute seconds
20
21# --- Or submit + poll manually (track request_id, control the cadence) ---
22from segmind import SegmindClient, InferenceFailed, InferenceTimeout
23
24client = SegmindClient()                      # reads SEGMIND_API_KEY
25payload = {
26    "image": "https://segmind-resources.s3.amazonaws.com/input/seedream-5.5-layer-decomposition-input-83de5eae.jpg",
27    "prompt": "",
28    "max_images": 10,
29    "text_recognition": False,
30    "size": "auto",
31    "output_format": "png",
32    "watermark": False,
33}
34job = client.submit_async("seedream-5.5-layer-decomposition", **payload)
35print(job.request_id)                         # available immediately
36try:
37    result = job.wait(timeout=600, interval=1.0)
38except InferenceTimeout as e:
39    print("still running:", e.request_id)
40except InferenceFailed as e:
41    print("failed:", e.detail)

API Endpoint

POSThttps://api.segmind.com/v1/seedream-5.5-layer-decomposition

Parameters

imagerequired
string (uri)

The image to split into layers. Exactly one image.

max_imagesoptional
integer

Most images to return, base image included (2-100). Higher values split more finely; each returned image is billed.

Default: 30Range: 2 - 100
output_formatoptional
string

Format of the base image. Layers are always png with transparency.

Default: "png"
Allowed values :
"png""jpeg"
promptoptional
string

Optional. Name the elements to separate, one by one. Leave empty and the model finds every major element itself.

sizeoptional
string

Resolution of the base image and layers. auto follows the input; larger tiers cost more per image.

Default: "auto"
Allowed values :
Auto (match input)→"auto"
"1K""1.5K""2K"
text_recognitionoptional
boolean

Also return the text in text layers, with font, size and colour.

Default: false
watermarkoptional
boolean

Adds a visible watermark. Keep off for production assets.

Default: false

Response Type

Returns: Image

Asynchronous requests (v2)

Use Async for video, long-running (>~60s), or high-concurrency workloads; Sync is simplest for fast image & LLM calls. Async submits a request and you poll it to completion.

  1. 1
    POST /v2/seedream-5.5-layer-decomposition

    Submit — returns request_id, status_url, response_url

  2. 2
    GET /v2/requests/{id}/status

    Poll — until COMPLETED or FAILED

  3. 3
    GET /v2/requests/{id}

    Result — final response body

Status states

QUEUED— Accepted, waiting for a worker
PROCESSING— Running on a worker
COMPLETED— Done — result body is ready
FAILED— Errored (incl. content/RAI blocks)
  • A FAILED request is served as HTTP 422 — the body still carries the error detail.
  • An unknown or expired request_id returns HTTP 404.
  • Results are retained for 1 hour, then expire.
  • Content / RAI blocks surface as FAILED, not a separate state.
  • Track completion by polling the status endpoint.

Common Error Codes

The API returns standard HTTP status codes. Detailed error messages are provided in the response body.

400

Bad Request

Invalid parameters or request format

401

Unauthorized

Missing or invalid API key

403

Forbidden

Insufficient permissions

404

Not Found

Model or endpoint not found

406

Insufficient Credits

Not enough credits to process request

429

Rate Limited

Too many requests

500

Server Error

Internal server error

502

Bad Gateway

Service temporarily unavailable

504

Timeout

Request timed out