LTX 2 Pro Serverless API

High-quality video generation with advanced motion control.

~70.71s
POST /v2/ltx-2-pro · 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    "image": "https://segmind-inference-inputs.s3.amazonaws.com/9387f0fc-7986-4746-93e7-a989f924ff96-89461106-6e0f-4441-8b7d-4b641de2d3e8-771eb2d7-7670-4e31-a6ca-559e333f4ae8_1.webp",
11    "prompt": "First Person View: Slow fly camera follow eagle shakes subtly from wind and movement, GoPro-style action, adrenaline rush, fast and fluid action, cinematic movement over a great Egyptian city like Alexandria with view of sea",
12    "duration": 6,
13    "resolution": "1080p",
14    "generate_audio": True,
15}
16job = client.submit_async("ltx-2-pro", **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("ltx-2-pro", **payload)

API Endpoint

POSThttps://api.segmind.com/v1/ltx-2-pro

Parameters

promptrequired
string

Descriptive text to shape your video. Use detailed prompts for vivid storytelling.

durationoptional
integer

Choose video length. Short durations suit demos; longer ones for detailed scenes.

Default: 6
Allowed values :
6810
generate_audiooptional
boolean

Enable audio generation for an immersive experience. Use for interactive or detailed presentations.

Default: true
imageoptional
string (uri)

Optional image input for video generation. Use high-res JPEG or PNG for enhanced outputs.

resolutionoptional
string

Select video resolution. 1080p for web use, 4k for cinematic quality.

Default: "1080p"
Allowed values :
"1080p""2k""4k"

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/ltx-2-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