Videofrom$0.35/ video 3s 720p

Kling 4.0

Kling 4.0 on Fuzion. 720p–1080p video from 3 to 30 seconds from text or reference images.

Served on Fuzion

Kling 4.0
Input → Output
Price
$0.35/ video 3s 720p
Resolution
720p–1080p
Duration
3–30s

Supported parameters

Values this model accepts through the API.

ParameterAccepted values
promptup to 5,000 characters
resolution720p, 1080p
aspect_ratio16:9, 9:16, 1:1, 21:9
duration3–30s
Reference imagesup to 10

Pricing

From
$0.35/ video 3s 720p
Resolution3s5s10s15s30s
720p$0.35$0.55$1.07$1.62$3.22
1080p$0.49$0.81$1.62$2.43$4.84

Price per job, charged in Fuzion credits (1 credit = ฿1) and rounded up to a whole credit. USD is converted at the current top-up rate. Failed jobs are refunded automatically.

One Fuzion credit balance covers the web app, the API, and MCP. No separate top-up · 1 credit = ฿1

Use it through the API

Request a quote, generate with the quote_id it returns, then poll the job until it finishes.

curl -X POST https://fuzionhub.co/api/v1/quote \
  -H "Authorization: Bearer $FUZION_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "fuzion/kling-4.0/v1",
    "prompt": "A golden retriever running on a beach at sunset, cinematic",
    "resolution": "720p",
    "duration": 3,
    "aspect_ratio": "16:9"
  }'
curl -X POST https://fuzionhub.co/api/v1/generate \
  -H "Authorization: Bearer $FUZION_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "quote_id": "<quote_id>",
    "model": "fuzion/kling-4.0/v1",
    "prompt": "A golden retriever running on a beach at sunset, cinematic",
    "resolution": "720p",
    "duration": 3,
    "aspect_ratio": "16:9"
  }'

curl https://fuzionhub.co/api/v1/jobs/<job_id> \
  -H "Authorization: Bearer $FUZION_API_KEY"

Frequently asked questions

What is Kling 4.0?

Kling 4.0 on Fuzion. 720p–1080p video from 3 to 30 seconds from text or reference images.

How much does Kling 4.0 cost?

From $0.35 / video 3s 720p. Jobs are charged in Fuzion credits (1 credit = ฿1), and one balance covers the web app, the API, and MCP.

What resolutions and lengths does Kling 4.0 support?

Kling 4.0 supports 720p–1080p resolution, 3–30s length, aspect ratios 16:9, 9:16, 1:1, 21:9.

What inputs does Kling 4.0 accept?

It accepts text, image, with prompts up to 5,000 characters.

How do I use Kling 4.0 through the API?

Create an API key in your Fuzion account, then call /api/v1/quote and /api/v1/generate with the model id "fuzion/kling-4.0/v1" (served on Fuzion). It also works through MCP with AI agents.

Am I charged if a job fails?

No. Jobs that fail on the provider side are refunded automatically.

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