Seedream 5.0 Pro Serverless API

Region-precise image editing with native multilingual text.

~105.19s
POST /v2/seedream-5-pro · 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-pro",
 9    prompt="A hyper-detailed macro photograph of a hummingbird hovering beside a dew-covered red hibiscus flower at sunrise, iridescent emerald and sapphire feathers catching warm golden light, tiny water droplets sparkling, soft creamy bokeh background, ultra sharp focus, professional wildlife photography",
10    image_input=[],
11    aspect_ratio="3:2",
12    size="2K",
13    output_format="jpeg",
14    watermark=False,
15)
16print(result["status"])                      # COMPLETED
17print(result.get("output"))                  # model output (e.g. media URL)
18print(result["metrics"]["inference_time"])   # server compute seconds
19
20# --- Or submit + poll manually (track request_id, control the cadence) ---
21from segmind import SegmindClient, InferenceFailed, InferenceTimeout
22
23client = SegmindClient()                      # reads SEGMIND_API_KEY
24payload = {
25    "prompt": "A hyper-detailed macro photograph of a hummingbird hovering beside a dew-covered red hibiscus flower at sunrise, iridescent emerald and sapphire feathers catching warm golden light, tiny water droplets sparkling, soft creamy bokeh background, ultra sharp focus, professional wildlife photography",
26    "image_input": [],
27    "aspect_ratio": "3:2",
28    "size": "2K",
29    "output_format": "jpeg",
30    "watermark": False,
31}
32job = client.submit_async("seedream-5-pro", **payload)
33print(job.request_id)                         # available immediately
34try:
35    result = job.wait(timeout=600, interval=1.0)
36except InferenceTimeout as e:
37    print("still running:", e.request_id)
38except InferenceFailed as e:
39    print("failed:", e.detail)

API Endpoint

POSThttps://api.segmind.com/v1/seedream-5-pro

Parameters

promptrequired
string

Text describing the image subject, style and setting. Be specific and name lighting and mood; put on-image text in quotes to render it exactly.

aspect_ratiooptional
string

Width-to-height ratio of the output. Use 1:1 for social, 16:9 or 21:9 for banners, 9:16 for mobile, 3:4 for portraits.

Default: "3:2"
Allowed values :
"1:1""4:3""3:4""16:9""9:16""3:2""2:3""21:9"
image_inputoptional
string[]

Reference image URLs for image-to-image or multi-reference editing, up to 10. Add product or character refs to preserve identity; leave empty for pure text-to-image.

output_formatoptional
string

File format of the returned image. Use jpeg for smaller photographic files, png for transparency and lossless text or edges.

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

Output resolution tier. Use 1K for fast drafts and iteration, 2K for print-ready detail and crisp small text.

Default: "2K"
Allowed values :
"1K""2K"
watermarkoptional
boolean

Toggles a visible watermark on the output. Keep false for clean production assets; set true only when attribution is required.

Default: false

Response Type

Returns: Text/JSON

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-pro

    Submitreturns request_id, status_url, response_url

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

    Polluntil COMPLETED or FAILED

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

    Resultfinal response body

Status states

QUEUEDAccepted, waiting for a worker
PROCESSINGRunning on a worker
COMPLETEDDone — result body is ready
FAILEDErrored (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