Kling O1 Video 2 Video Reference Serverless API

Video style transfer using reference character images.

~224.34s
POST /v2/kling-o1-video-to-video-reference · 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": "Based on @Video1, generate the next shot. Keep the style of the video man drives fast and fall on the road",
11    "video_url": "https://segmind-inference-inputs.s3.amazonaws.com/2c499e1e-2b40-4833-b9dd-37a47f8e52e6-seedance_1.5_output.mp4",
12    "image_urls": ["https://segmind-inference-inputs.s3.amazonaws.com/bacc9f7c-6375-4138-9695-d4654f59d78a-output-1767722935251.png", "https://segmind-inference-inputs.s3.amazonaws.com/bf576f0d-58e5-4234-9431-523d34df184e-output-1767723467082.png"],
13    "aspect_ratio": "auto",
14    "duration": "5",
15    "keep_audio": False,
16}
17job = client.submit_async("kling-o1-video-to-video-reference", **payload)
18print(job.request_id)                         # available immediately
19try:
20    result = job.wait(timeout=900, interval=2.0)
21    print(result["status"])                  # COMPLETED
22    print(result.get("output"))              # model output (e.g. video URL)
23except InferenceTimeout as e:
24    print("still running:", e.request_id)    # re-poll later with this id
25except InferenceFailed as e:
26    print("failed:", e.detail)
27
28# Fast models (<=600s) can use the one-liner instead:
29# result = segmind.run("kling-o1-video-to-video-reference", **payload)

API Endpoint

POSThttps://api.segmind.com/v1/kling-o1-video-to-video-reference

Parameters

promptrequired
string

Describe the video continuation or modification. Use @Video1 to reference input video

video_urlrequired
string (uri)

URL of the reference video

aspect_ratiooptional
string

Sets frame dimensions. Use 'auto' for automatic detection

Default: "auto"
Allowed values :
"auto""16:9""9:16""1:1"
durationoptional
integer

Video duration in seconds

Default: 5
Allowed values :
510
elementsoptional
string

Elements with frontal and reference images. Invoke as @Element1.

Default: null
image_urlsoptional
string[]

List of reference image URLs

keep_audiooptional
boolean

Keep the original audio from the input video

Default: false

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/kling-o1-video-to-video-reference

    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