Models/Kling/Kling 3.0

Kling: Kling 3.0

Name: Kling 3.0
Brand: Kling
Price: 0.0875 USD
Availability: InStock

Videokling-3.0

Kling 3.0: multi-shot scenes up to 15 seconds, native audio and std/pro/4K modes.

API docs

Playgroundkling-3.0

Reference image＋Upload

duration

Aspect ratio

Quality

sound

Latency6.7 s

24hnow

Specifications

Authorkling

ModalityVideo

Price$0.087 / second

ReleasedJul 23, 2026

Quick start

# Video is asynchronous: create, then poll.
curl https://api.altrouter.ai/v1/videos \
  -H "Authorization: Bearer ar-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kling-3.0",
    "prompt": "a drone shot over a coastline"
  }'
# → { "id": "vid_...", "status": "queued" }

curl https://api.altrouter.ai/v1/videos/vid_... \
  -H "Authorization: Bearer ar-..."
# → { "status": "completed", "url": "https://api.altrouter.ai/media/videos/..." }

Same OpenAI-compatible endpoint — just swap base_url and key.

API

An asynchronous endpoint: the call returns immediately in queued, and you poll GET /v1/videos/{id} for the result. The finished mp4 is re-hosted on our CDN, and only a completed render is charged.

POST/v1/videos

Body parameters

modelstringrequired"kling-3.0"

The model id.

promptstringrequired

The text description of the scene.

secondsinteger

Clip length; `duration` is accepted as an alias.

imagestringURL or base64

A reference frame — its presence routes to the model’s image-to-video variant.

durationenum3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15default 5

Clip length in seconds (affects price).

aspect_ratioenum16:9 · 9:16 · 1:1default 16:9

Output aspect ratio.

qualityenumstd · pro · 4Kdefault std

Quality: basic (2K) / high (4K), affects price.

soundbooleandefault false

Generate an audio track (costs more).

Response

The same object comes back from GET /v1/videos/{id}; the finished file is also served directly from GET /v1/videos/{id}/content.

idstring

The render id (vid_…) — this is what you poll.

statusenumqueued · in_progress · completed · failed

The state of the render.

urlstring

The finished mp4 on our CDN — appears at status: completed.

secondsinteger

The clip length the price was computed on.

errorobject

Why it failed at status: failed: { code, message }.

Example

cURLPythonJSON

curl https://api.altrouter.ai/v1/videos \
  -H "Authorization: Bearer ar-..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling-3.0",
  "prompt": "a drone shot over a rocky coastline at sunrise",
  "duration": "5",
  "aspect_ratio": "16:9"
}'

Errors

400Invalid request.

401Missing or invalid API key.

402Insufficient credits, or the key’s spending cap is exhausted.

404Model not found.

429Rate limit exceeded.