Luma Ray 3.2 Serverless API

Cinematic text-to-video and image-to-video clips up to 1080p.

~51.66s
POST /v2/luma-ray-3-2 · submit + poll
 1# pip install "segmind>=1.1.0"
 2# export SEGMIND_API_KEY="YOUR_API_KEY"
 3from segmind import SegmindClient, InferenceFailed, InferenceTimeout
 4
 5# Async (v2) — recommended for long-running / video models.
 6# run() blocks up to 600s; submit_async + job.wait(timeout=...) sets a longer
 7# deadline and keeps the request_id so you can re-poll later.
 8client = SegmindClient()                      # reads SEGMIND_API_KEY
 9payload = {
10    "prompt": "The woman's flowing red dress and long hair billow dramatically in the strong sea breeze, turquoise ocean waves surge and crash into white foam against the rocks below, seabirds glide gracefully across the glowing golden-hour sky, soft clouds drift slowly, gentle cinematic camera push-in, smooth fluid natural motion, photorealistic, ultra detailed",
11    "start_frame": "https://segmind-resources.s3.amazonaws.com/input/luma-ray-3-2-img-2-video-start-frame.jpg",
12    "resolution": "720p",
13    "duration": "5s",
14    "aspect_ratio": "16:9",
15}
16job = client.submit_async("luma-ray-3-2", **payload)
17print(job.request_id)                         # available immediately
18try:
19    result = job.wait(timeout=900, interval=2.0)
20    print(result["status"])                  # COMPLETED
21    print(result.get("output"))              # model output (e.g. video URL)
22except InferenceTimeout as e:
23    print("still running:", e.request_id)    # re-poll later with this id
24except InferenceFailed as e:
25    print("failed:", e.detail)
26
27# Fast models (<=600s) can use the one-liner instead:
28# result = segmind.run("luma-ray-3-2", **payload)

API Endpoint

POSThttps://api.segmind.com/v1/luma-ray-3-2

Parameters

promptrequired
string

Required text describing scene, subject, motion and camera. Be specific about action and style.

aspect_ratiooptional
string

Frame shape such as 16:9, 9:16 or 1:1. Use 16:9 cinematic, 9:16 vertical social.

Default: "16:9"
Allowed values :
"16:9""1:1""21:9""3:4""4:3""9:16"
durationoptional
string

Clip length, either 5s or 10s. Use 5s for quick tests, 10s for storytelling.

Default: "5s"
Allowed values :
"5s""10s"
end_frameoptional
string (uri)

Optional image URL for the final keyframe. Pair with start_frame for guided transitions.

resolutionoptional
string

Output resolution: 360p, 540p, 720p or 1080p. Use 720p for balance, 1080p for hero shots.

Default: "720p"
Allowed values :
"360p""540p""720p""1080p"
start_frameoptional
string (uri)

Optional image URL used as the first frame for image-to-video. Omit for pure text-to-video.

Response Type

Returns: Video

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/luma-ray-3-2

    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