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

- Input → Output
- Price
- $0.35/ video 3s 720p
- Resolution
- 720p–1080p
- Duration
- 3–30s
Supported parameters
Values this model accepts through the API.
| Parameter | Accepted values |
|---|---|
| prompt | up to 5,000 characters |
| resolution | 720p, 1080p |
| aspect_ratio | 16:9, 9:16, 1:1, 21:9 |
| duration | 3–30s |
| Reference images | up to 10 |
Pricing
| Resolution | 3s | 5s | 10s | 15s | 30s |
|---|---|---|---|---|---|
| 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.








