Creative studioGeneratedModels
Kling O3
Creative Studio video model reference for the public API.
Kling O3
Public model ID: kling-o3
Asset type: video
Category: Video Generation
Starting credits: 5 (defaults: 11)
Prompt required.
Start a generation
curl -s -X POST "$API_BASE_URL/v1/creative-studio/generations" \
-H "Authorization: Bearer vsl_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"modelId": "kling-o3",
"prompt": "Your prompt here",
"start_image": ["https://example.com/reference.jpg"],
"video_reference_type": "feature"
}' | jqPoll GET /v1/creative-studio/generations/{id} until status is completed. Completed generations return outputUrl on cdn.videoslash.com.
Media parameters
| Name | Type | Constraints | Default | Description |
|---|---|---|---|---|
start_image | string | optional · max items: 1 | — | First frame image. Supports .jpg/.jpeg/.png, max 10MB, min 300px, aspect ratio 1:2.5 to 2.5:1. |
end_image | string | optional · max items: 1 | — | Last frame image. Requires start_image. Supports .jpg/.jpeg/.png, max 10MB, min 300px. |
reference_images | array | optional · max items: 7 | — | Reference images for elements, scenes, or styles. Supports .jpg/.jpeg/.png. Max 7 without video, 4 with video. |
reference_video | string | optional · max items: 1 | — | Reference video (.mp4/.mov). Duration 3-10s, resolution 720-2160px per side, max 200MB. |
Settings parameters
| Name | Type | Constraints | Default | Description |
|---|---|---|---|---|
video_reference_type | enum | optional · enum: feature, base | feature | How to use reference video: 'feature' for style/camera reference, 'base' for video editing. |
keep_original_sound | boolean | optional | true | Keep original sound from reference video. |
generate_audio | boolean | optional | false | Generate native audio. Mutually exclusive with reference video. |
mode | enum | optional · enum: standard, pro, 4k | pro | 'standard' generates 720p, 'pro' generates 1080p, '4k' generates 4K. 4K does not support reference_video. |
aspect_ratio | enum | optional · enum: 16:9, 9:16, 1:1 | 16:9 | Aspect ratio. Required when not using start frame or video editing. |
duration | integer | optional · min: 3 · max: 15 | 5 | Video duration in seconds (3-15). Ignored for video editing (base). |
multi_prompt | string | optional | — | JSON array of shot definitions for multi-shot mode. Each shot: {"prompt": "...", "duration": N}. Max 6 shots, min duration 1s per shot, total must equal duration. Example: [{"prompt":"A cat jumps","duration":3},{"prompt":"It lands","duration":2}] |