KuaishouvideoPopularOperational

Kling 3.0 Image to Video API

Name: Kling 3.0 API
Brand: Kuaishou
Availability: InStock

Image to Video with Kling 3.0 by Kuaishou. Kling's flagship video model — cinematic motion, native audio, up to 15 s.

kuaishou/kling-3.0/image-to-video

FromUp to −12%

$0.074/s$0.084

per second of video · 720p

Open in Studio API

Try Kling 3.0 Image to Video

Prompt*

0/5000

First frame*

Image used as the opening frame. JPG/PNG/WebP, URL or upload.

Last frame

Optional closing frame — the model animates between the two.

Resolution

Output resolution. Higher resolutions cost more per second.

Duration

Length of the generated clip in seconds (3–15s). You pay per second.

Generate audio

Generate synchronized sound, ambience and dialogue. Clips with audio are billed at a higher per-second rate.

Estimated cost…

Create a free account with Google or email — pay only for what you generate.

Your video will appear here

Write a prompt, pick your settings and hit Run. You only pay for successful generations.

Also available: Kling 3.0 Text to Video

Kling 3.0 Image to Video API

POST/api/v1/run/kuaishou/kling-3.0/image-to-video

Submits an asynchronous job and returns 202 with a generation id. Poll GET /api/v1/generations/{id} or pass webhook_url. See job lifecycle.

Input parameters

Name	Type	Description	Affects price
`prompt`required	string	Describe the shot: subject, action, camera movement, lighting and style.	No
`image_url`required	string (URL)	Image used as the opening frame. JPG/PNG/WebP, URL or upload.	No
`end_image_url`	string (URL)	Optional closing frame — the model animates between the two.	No
`resolution`	string (enum)	Output resolution. Higher resolutions cost more per second. Values: 720p · 1080p Default: 720p	Yes
`duration`	integer	Length of the generated clip in seconds (3–15s). You pay per second. Range: 3–15s Default: 5	Yes
`generate_audio`	boolean	Generate synchronized sound, ambience and dialogue. Clips with audio are billed at a higher per-second rate. Default: true	Yes
`negative_prompt`	string	Things to avoid in the output.	No
`webhook_url`	string (URL)	Optional. We POST the finished generation here, signed with your webhook secret. Webhooks	No

Request

curl -X POST https://cheapergen.com/api/v1/run/kuaishou/kling-3.0/image-to-video \
  -H "Authorization: Bearer $CHEAPERGEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "prompt": "She turns toward the window and smiles as the curtains sway; slow push-in",
  "image_url": "https://cdn.cheapergen.ai/samples/portrait.jpg",
  "resolution": "720p",
  "duration": 5
}'

import os, time, requests

API = "https://cheapergen.com/api/v1"
headers = {"Authorization": f"Bearer {os.environ['CHEAPERGEN_API_KEY']}"}

# 1. Submit the job
job = requests.post(f"{API}/run/kuaishou/kling-3.0/image-to-video", headers=headers, json={
    "prompt": "She turns toward the window and smiles as the curtains sway; slow push-in",
    "image_url": "https://cdn.cheapergen.ai/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 5
}).json()

# 2. Poll until it finishes (or pass "webhook_url" and skip polling)
while job["status"] in ("queued", "running"):
    time.sleep(3)
    job = requests.get(f"{API}/generations/{job['id']}", headers=headers).json()

print(job["status"], job["output"]["video"]["url"] if job["status"] == "succeeded" else job["error"])

const API = "https://cheapergen.com/api/v1";
const headers = {
  Authorization: `Bearer ${process.env.CHEAPERGEN_API_KEY}`,
  "Content-Type": "application/json",
};

// 1. Submit the job
let job = await fetch(`${API}/run/kuaishou/kling-3.0/image-to-video`, {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "She turns toward the window and smiles as the curtains sway; slow push-in",
    "image_url": "https://cdn.cheapergen.ai/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 5
  }),
}).then((r) => r.json());

// 2. Poll until it finishes (or pass webhook_url and skip polling)
while (job.status === "queued" || job.status === "running") {
  await new Promise((r) => setTimeout(r, 3000));
  job = await fetch(`${API}/generations/${job.id}`, { headers }).then((r) => r.json());
}

console.log(job.status === "succeeded" ? job.output.video.url : job.error);

Response

{
  "id": "gen_8c2QmX1nq0k4",
  "object": "generation",
  "model": "kuaishou/kling-3.0",
  "endpoint": "kuaishou/kling-3.0/image-to-video",
  "mode": "image-to-video",
  "status": "queued",
  "input": {
    "prompt": "She turns toward the window and smiles as the curtains sway; slow push-in",
    "image_url": "https://cdn.cheapergen.ai/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 5
  },
  "output": null,
  "error": null,
  "cost": {
    "amount_usd": 0.2255,
    "currency": "usd",
    "estimated": true,
    "official_usd": null,
    "saved_usd": null
  },
  "source": "api",
  "started_at": null,
  "completed_at": null,
  "urls": {
    "get": "https://cheapergen.com/api/v1/generations/gen_8c2QmX1nq0k4",
    "cancel": "https://cheapergen.com/api/v1/generations/gen_8c2QmX1nq0k4/cancel"
  },
  "created_at": "2026-10-15T09:21:04Z"
}

{
  "id": "gen_8c2QmX1nq0k4",
  "object": "generation",
  "model": "kuaishou/kling-3.0",
  "endpoint": "kuaishou/kling-3.0/image-to-video",
  "mode": "image-to-video",
  "status": "succeeded",
  "input": {
    "prompt": "She turns toward the window and smiles as the curtains sway; slow push-in",
    "image_url": "https://cdn.cheapergen.ai/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 5
  },
  "output": {
    "video": {
      "url": "https://cdn.cheapergen.ai/outputs/gen_8c2Q.mp4",
      "content_type": "video/mp4",
      "duration": 5,
      "width": 1280,
      "height": 720
    }
  },
  "error": null,
  "cost": {
    "amount_usd": 0.2255,
    "currency": "usd",
    "estimated": false,
    "official_usd": 0.264,
    "saved_usd": 0.0385
  },
  "source": "api",
  "created_at": "2026-10-15T09:21:04Z",
  "started_at": "2026-10-15T09:21:06Z",
  "completed_at": "2026-10-15T09:22:31Z"
}

Kling 3.0 pricing

Pay per second of video. No subscription. Failed generations are refunded automatically.

Tier	Official price	Cheaper Gen.	You save
720p silent	~~$0.084~~/s	$0.074/s	−12%
720p + audio with native audio	~~$0.126~~/s	$0.111/s	−12%
1080p silent	~~$0.112~~/s	$0.099/s	−12%
1080p + audio with native audio	~~$0.168~~/s	$0.148/s	−12%

Official price: Kling developer API list price, kling.ai/dev/pricing (1 unit = $0.14: $0.084 / s at 720p, $0.112 / s at 1080p; with native audio $0.126 / $0.168). Prices verified 2026-10-16.
Native audio is billed at a higher per-second rate; turn it off for silent clips.

About Kling 3.0 All Kling 3.0 endpoints