Videofrom$0.52/ video 3s 720p
Kling 4.0 Pro
Kuaishou's Kling 4.0 Pro. 720p–1080p video from 3 to 30 seconds with audio, using image, video, and audio references, plus a keyframe mode with first and last frames.
Served on Srv.3
- Input → Output
- Price
- $0.52/ video 3s 720p
- Resolution
- 720p–1080p
- Duration
- 3–30s
Supported parameters
Values this model accepts through the API.
| Parameter | Accepted values |
|---|---|
| prompt | up to 8,000 characters |
| resolution | 720p, 1080p |
| aspect_ratio | 16:9, 9:16, 1:1, 21:9, auto |
| duration | 3–30s |
| kling_mode | reference (default), keyframe |
| Reference images | up to 10 |
| Reference videos | up to 5 |
| Reference audio | up to 3 |
Pricing
From
$0.52/ video 3s 720p
| Resolution | 3s | 5s | 10s | 15s | 30s |
|---|---|---|---|---|---|
| 720p | $0.52 | $0.87 | $1.74 | $2.61 | $5.22 |
| 1080p | $0.78 | $1.30 | $2.61 | $3.91 | $7.80 |
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": "fuzion3/kling-4.0-pro",
"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": "fuzion3/kling-4.0-pro",
"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 Pro?
Kuaishou's Kling 4.0 Pro. 720p–1080p video from 3 to 30 seconds with audio, using image, video, and audio references, plus a keyframe mode with first and last frames.
How much does Kling 4.0 Pro cost?
From $0.52 / 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 Pro support?
Kling 4.0 Pro supports 720p–1080p resolution, 3–30s length, aspect ratios 16:9, 9:16, 1:1, 21:9, auto.
What inputs does Kling 4.0 Pro accept?
It accepts text, image, video, audio, with prompts up to 8,000 characters.
How do I use Kling 4.0 Pro through the API?
Create an API key in your Fuzion account, then call /api/v1/quote and /api/v1/generate with the model id "fuzion3/kling-4.0-pro" (served on Srv.3). 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.
