Kling O3 Omni 4K Video Reference generates 4K AI videos guided by an input video, text prompt, and optional reference images, supporting video-to-video creation with visual reference guidance, motion consistency, camera control, and high-quality cinematic output.
Every plan, free included. Runs spend your account’s credits.
The smallest request that works: the required fields only.
curl https://api.percify.io/v3/playground/v1/run \
-H "Authorization: Bearer $PERCIFY_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"modelId": "kling-o3-4k-video-reference",
"input": {
"prompt": "A red fox running through fresh snow at sunrise",
"video": "https://example.com/clip.mp4"
}
}'7 fields in input, required first.
videoRequiredThe reference video URL. Supported formats:.mp4/.mov, up to 200MB, 3-15 seconds (longer videos are trimmed to 15s), width and height between 700px and 3840px.
promptRequiredDescribe the new scene, subject behavior, camera movement, and visual treatment. Refer to input images as <<<image_1>>>, <<<image_2>>>,... in array order, the input video as <<<video_1>>> and elements as <<<element_1>>>, <<<element_2>>>, etc.
imagesOptionalOptional reference images. The combined official reference limits still apply.
durationOptionalGenerated video duration in seconds.
$0.82/sFLUX 3 Video Extend continues input videos into new 5-20 second clips, using prompt guidance to control the next action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
$0.34/sFLUX 3 Start-End-to-Video generates 5-20 second transition videos between required start and end images, using prompt guidance to control action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
$0.34/sFLUX 3 Text-to-Video generates cinematic 5-20 second videos from text prompts, with coherent motion, cinematic composition, optional synchronized audio, and 720P / 1080P output for creative videos, social content, ads, and production workflows.
$0.06/sGemini Omni 1.1 Flash Text-to-Video creates short AI videos with synchronized audio from text prompts, supporting resolutions from 360P to 4K for social content, creative storytelling, marketing videos, and production workflows.

Pick a use case, run it in the playground, copy the call.
Every plan, free included. Runs spend your account’s credits.
aspect_ratioOptionalOutput video aspect ratio.
element_listOptionalElement reference list.
keep_original_soundOptionalKeep the original audio from the reference video.