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Kling 4.0 Flash generates 720p videos from text prompts and image or video references, with durations from 3 to 20 seconds.
Details
- Accepts
- text
Pricing
- Price
- 11.75 cr / second
Prices in credits (1 credit = $0.01).
Data schema
Input
| Field | Type | Description |
|---|---|---|
| promptrequired | string | Text prompt. Reference inputs as @Image1, @Video1, @Element1, etc. |
| duration | integer | Video duration in seconds (3-20). |
| elements | — | Characters/objects, referenced as @Element1, @Element2, ... (max 7). Up to 3 may be video elements. Flash does not accept voices. |
| image_urls | — | Reference images, referenced as @Image1, @Image2, ... (max 10). |
| resolution | stringenum: 720p | Output resolution. Flash is 720p only. |
| video_urls | — | Reference videos (3-20s each, 20s combined with element videos), referenced as @Video1, @Video2, ... (max 5). |
| aspect_ratio | stringenum: auto, 16:9, 9:16, 1:1, 21:9 | Aspect ratio of the generated video. 'auto' adapts it to the references. |
| start_image_url | — | Optional image to use as the first frame. Counts toward the image reference limit. |
Output
| Field | Type | Description |
|---|---|---|
| video | — | The generated video. |