Models / Kling 4
Kling · Video
Kling 4
Up to thirty seconds in one go, always with sound, and it can start and end on pictures you give it. Made by Kling. 3 to 30 seconds, 720p, 1080p. From $0.172 second.
kling-4
TypeVideo
InputsText, First frame, References, Video
Length3 to 30 s
Resolution720p, 1080p
SoundNo
Aspect ratioauto, 16:9, 9:16, 1:1, 21:9
From$0.172 second
UpdatedNov 4, 2026
Pricing
| Setting | MiniAPI | fal | Difference |
|---|---|---|---|
| 720p | $0.172 second | $0.157 | +10% |
| 1080p | $0.258 second | $0.235 | +10% |
Parameters
| Name | Required | Values | Default | Description |
|---|---|---|---|---|
| prompt | No | text | What to make, in plain words. | |
| start_image_url | For first frame | https URL | A picture for the first frame. | |
| end_image_url | No | https URL | A picture for the last frame. | |
| middle_image_urls | No | https URLs | Ordered keyframes between the first and last frames (max 8). | |
| image_urls | No | https URLs | Pictures to use as references.Only with references | |
| video_urls | No | https URLs | Clips to work on or reference.Only with references | |
| multi_prompt | No | One prompt per shot, for several shots in one video. | ||
| duration | No | 3 to 30 | 5 | Length in seconds. The price changes with it. |
| resolution | No | 720p, 1080p | 1080p | Output size. Higher is sharper, slower and costs more. |
| voice_ids | No | Voices referenced in the prompt as @Voice1, @Voice2, ... (max 3, including voices bound to elements).Only with references | ||
| aspect_ratio | No | auto, 16:9, 9:16, 1:1, 21:9 | 16:9 | Shape of the result, for example 16:9 or 9:16. |
| elements | No | People or objects to keep the same across the video.Only with references |
Quickstart
curl -X POST "https://api.minicut.ai/v1/queue/kling-4" \
-H "Authorization: Key $MINIAPI_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt":"a red fox runs through snow at dawn","resolution":"720p","duration":5}'200 OK
{
"request_id": "0192f3a4-5b6c-7d8e-9f01-23456789abcd",
"status": "IN_QUEUE",
"queue_position": 0,
"status_url": "https://api.minicut.ai/v1/queue/kling-4/requests/0192f3a4-5b6c-7d8e-9f01-23456789abcd/status",
"response_url": "https://api.minicut.ai/v1/queue/kling-4/requests/0192f3a4-5b6c-7d8e-9f01-23456789abcd",
"cancel_url": "https://api.minicut.ai/v1/queue/kling-4/requests/0192f3a4-5b6c-7d8e-9f01-23456789abcd/cancel",
"price": "0.860000",
"currency": "USD"
}Compare
| Model | Maker | Max length | Resolution | Sound | From | vs fal |
|---|---|---|---|---|---|---|
| Kling 4 | Kling | 30 s | 720p, 1080p | No | $0.172 second | |
 Seedance 2.5 | ByteDance | 30 s | 480p, 720p, 1080p | Yes | $0.16 / s | -27% |
 Seedance 2.0 | ByteDance | 15 s | 480p, 720p, 1080p, 4K | Yes | $0.10 / s | -26% |
 Kling 3.0 | Kling | 15 s | Yes | $0.0924 / s | ||
 Google Veo 3.1 | 8 s | 720p, 1080p, 4K | Yes | $0.11 / s |
FAQ
How much does Kling 4 cost?
From $0.172 second at 720p. Pricing lists every setting.
How long can a Kling 4 video be?
3 to 30 seconds.
What inputs does Kling 4 take?
Text, First frame, References, Video.
Am I charged if a Kling 4 job fails?
No. You are not charged for it.
