How much does Kling v3 4K Image to Video cost on varg?

Kling v3 4K Image to Video costs from $1.26 per run on varg ($0.42/s on the cheapest route). varg charges the provider's price with no markup, from one credit balance. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.

How do I call the Kling v3 4K Image to Video API?

Send POST https://api.varg.ai/v2/tools/video/call with the header "Authorization: Bearer $VARG_API_KEY" and a JSON body that includes "model": "kling_v3_4k_image_to_video". The call answers 202 with a job right away. Poll GET https://api.varg.ai/v2/jobs/{id} until "status" is "completed", then read output.outputs[0].url, or pass options.webhook_url to be called back.

Can I use Kling v3 4K Image to Video from Claude, ChatGPT or Cursor?

Yes. Add the varg MCP server (https://mcp.varg.ai/mcp) to Claude, ChatGPT, Cursor or any other MCP client and sign in with varg, with no API key to paste. The agent runs Kling v3 4K Image to Video with call_tool, passing tool "video" and "model": "kling_v3_4k_image_to_video".

How long does a Kling v3 4K Image to Video request take?

Typically about 2 min on the fastest route, by the catalog's estimate. The API answers at once with a job id, so nothing waits on an open connection while it runs.

Video · Image to video

Kling v3 4K Image to Video API

Kling v3 in 4K. Image-to-video, billed per second.

Price: From $1.26 per run $0.42/s
Typical time: ~2 min
Model id: kling_v3_4k_image_to_video

Kling v3 4K Image to Video runs on one varg API key and one credit balance, the same as every other model here. You pay the provider's price, with no markup.

POST /v2/tools/video/call

curl -X POST https://api.varg.ai/v2/tools/video/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling_v3_4k_image_to_video",
  "prompt": "make the cat jump in 4K",
  "files": [
    {
      "url": "https://example.com/cat.png"
    }
  ],
  "duration": 5
}'

Try it in the Playground Get an API key

Kling v3 4K Image to Video pricing

From $1.26 per run. Prices are in US dollars and are the provider's own, with no markup. For the exact price of a request, send the same body to POST https://api.varg.ai/v2/estimate.

fal $0.42/s
fal:kling_v3_4k_image_to_video/i2v
Image to video
Per second
$0.42/s
Minimum charge
$1.26
Most one request can cost
$6.30
Typical time
~2 min

Kling v3 4K Image to Video inputs

The JSON body of the request. Media inputs are URLs: upload a local file with POST /v2/files and pass the URL it returns. Full JSON Schema, no key needed: api.varg.ai/v2/tools/video?model=kling_v3_4k_image_to_video

Kling v3 4K Image to Video request fields
Field	What it does
`model` string required	`kling_v3_4k_image_to_video` picks a route automatically.
`prompt` string	—
`files` array of { url }	—
`aspect_ratio` string	Allowed e.g. 16:9 \| 9:16 \| 1:1 \| 4:3 \| 3:4 \| 21:9 \| auto
`resolution` string	Quality tier. Not supported by this model — ignored if sent. Allowed 480p \| 720p \| 1080p \| 4k
`audio` boolean	Set true to generate the video with a native audio track.
`duration` integer	Length in seconds. Supported by this model's routes: fal: 3-15. A non-numeric value such as "auto" is routed to a route whose schema accepts it; when none does, the request is rejected. Allowed 3–15

Provider options

Optional, under provider_options.<provider>. Only the options of the provider that runs the job apply; pin a route to choose it.

`provider_options.fal`

Kling v3 4K Image to Video options for fal
Field	What it does
`prompt` string	—
`duration` string	Allowed 3 \| 4 \| 5 \| 6 \| 7 \| 8 \| 9 \| 10 \| 11 \| 12 \| 13 \| 14 \| 15
`image_url` string (URL)	—
`aspect_ratio` string	Allowed e.g. 16:9 \| 9:16 \| 1:1 \| 4:3 \| 3:4 \| 21:9 \| auto
`end_image_url` string (URL)	—
`generate_audio` boolean	—

Call the Kling v3 4K Image to Video API

POST https://api.varg.ai/v2/tools/video/call with Authorization: Bearer $VARG_API_KEY. It answers 202 with a job right away.

1. Send the request

cURL

curl -X POST https://api.varg.ai/v2/tools/video/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling_v3_4k_image_to_video",
  "prompt": "make the cat jump in 4K",
  "files": [
    {
      "url": "https://example.com/cat.png"
    }
  ],
  "duration": 5
}'

JavaScript

const headers = {
  Authorization: `Bearer ${process.env.VARG_API_KEY}`,
  'Content-Type': 'application/json',
}

const res = await fetch('https://api.varg.ai/v2/tools/video/call', {
  method: 'POST',
  headers,
  body: JSON.stringify({
    "model": "kling_v3_4k_image_to_video",
    "prompt": "make the cat jump in 4K",
    "files": [
      {
        "url": "https://example.com/cat.png"
      }
    ],
    "duration": 5
  }),
})
const job = await res.json() // { id: "job_…", status: "queued" }

Python

import os
import requests

headers = {"Authorization": f"Bearer {os.environ['VARG_API_KEY']}"}

job = requests.post(
    "https://api.varg.ai/v2/tools/video/call",
    headers=headers,
    json={
      "model": "kling_v3_4k_image_to_video",
      "prompt": "make the cat jump in 4K",
      "files": [
        {
          "url": "https://example.com/cat.png"
        }
      ],
      "duration": 5
    },
).json()  # {"id": "job_…", "status": "queued"}

2. Get the result

Poll the job until its status is completed, failed or cancelled; Kling v3 4K Image to Video typically takes about 2 min. The result is at output.outputs[0].url.

GET /v2/jobs/{id}

curl https://api.varg.ai/v2/jobs/$JOB_ID \
  -H "Authorization: Bearer $VARG_API_KEY"

# Poll until "status" is completed, failed or cancelled.
# The result is in output.outputs[0].url

JavaScript

let current = job
while (!['completed', 'failed', 'cancelled'].includes(current.status)) {
  await new Promise((resolve) => setTimeout(resolve, 3000))
  current = await (await fetch(`https://api.varg.ai/v2/jobs/${current.id}`, { headers })).json()
}
console.log(current.output?.outputs?.[0]?.url)

Python

import time

while job["status"] not in ("completed", "failed", "cancelled"):
    time.sleep(3)
    job = requests.get(f"https://api.varg.ai/v2/jobs/{job['id']}", headers=headers).json()

print(job["output"]["outputs"][0]["url"])

Or take a webhook instead of polling

Add options.webhook_url and varg POSTs the finished job to it.

request body

{
  "model": "kling_v3_4k_image_to_video",
  "prompt": "make the cat jump in 4K",
  "files": [
    {
      "url": "https://example.com/cat.png"
    }
  ],
  "duration": 5,
  "options": {
    "webhook_url": "https://your-app.com/varg-webhook"
  }
}

From Claude, ChatGPT or Cursor (MCP)

The varg MCP server, https://mcp.varg.ai/mcp, runs Kling v3 4K Image to Video with call_tool. Sign in with varg, no API key to paste. How to connect it

call_tool

{
  "tool": "video",
  "input": {
    "model": "kling_v3_4k_image_to_video",
    "prompt": "make the cat jump in 4K",
    "files": [
      {
        "url": "https://example.com/cat.png"
      }
    ],
    "duration": 5
  },
  "wait": true
}