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KwaiVGI modelsimage generation api

kwaivgi/kling-video/o1/pro/video-to-video

Kling Video O1 Pro by KwaiVGI - AI-powered video editing and transformation. Apply style transfer, motion control, lip-sync, and visual effects to existing videos with natural language instructions.

Input
Use @Element1, @Element2 to reference elements and @Image1, @Image2 to reference images in order.

PNG, JPEG, WebP, or GIF · 20 MiB maximum each

Reference images for style/appearance. Reference in prompt as @Image1, @Image2, etc. Maximum 4 total (elements + reference images) when using video.
Reference video URL. Only .mp4/.mov formats supported, 3-10 seconds duration, 720-2160px resolution, max 200MB. Max file size: 200.0MB, Min width: 720px, Min height: 720px, Max width: 2160px, Max height: 2160px, Min duration: 3.0s, Max duration: 10.05s, Min FPS: 24.0, Max FPS: 60.0, Timeout: 30.0s
Video duration in seconds. Allowed values: 3, 4, 5, 6, 7, 8, 9, 10.
Whether to keep the original audio from the video.
The aspect ratio of the generated image. Allowed values: 16:9, 9:16, 1:1.
Idle

Example output — click Run to generate your own

API README

Kling Video O1 Pro Video-to-Video

video to video in the Kling Video lineup is built to reinterpret an existing clip while using its timing and motion as the foundation. The kling video o1 pro video to video configuration combines that transformation with the quality and motion profile represented by this exact model version, so teams can choose it deliberately among adjacent family variants. It is useful when the input already establishes part of the creative intent and the model must supply a polished result rather than a generic media conversion, with subject identity, scene logic, visual hierarchy, and the delivery goal kept explicit.

For production work with kwaivgi/kling-video/o1/pro/video-to-video, begin with the non-negotiable content, then describe the desired change, framing, action, atmosphere, and finishing cues in that order. Separate what must remain recognizable from what may vary, and prefer concrete nouns and observable actions over abstract praise. That structure makes outputs easier to compare across storyboard passes, campaign variants, catalog assets, and other repeatable creative pipelines.

Highlights

Motion-preserving transformation. Uses source action and timing as a foundation for a new interpretation.

Temporal style transfer. Applies changed texture, atmosphere, or subject treatment consistently across frames.

Scene-aware revision. Changes requested content while keeping unrelated motion and composition recognizable.

kling video o1 pro video to video reduced frame drift. Maintains visual continuity as the transformed sequence progresses. This is the defining creative strength of the kling video o1 pro video to video configuration.

Pricing

DurationPrice per generated clip
3 seconds$0.5040
4 seconds$0.6720
5 seconds$0.8400
6 seconds$1.0080
7 seconds$1.1760
8 seconds$1.3440
9 seconds$1.5120
10 seconds$1.6800

Billing follows params.duration * 0.168: multiply generated seconds by the $0.1680 per-second rate.

When to Use

✅ Good fit❌ Consider alternatives
The model's named workflow matches the source material and intended outputA different input modality or model route is required
A managed asynchronous result is suitable for the production pipelineA synchronous, interactive editor is essential
The documented controls cover the required duration, framing, or formatThe project needs controls outside this endpoint's schema
Creative iteration benefits from a repeatable request structureExact deterministic pixels, frames, geometry, or samples are mandatory
A finished downloadable media asset is the desired deliverableEditable source layers or a native project file are required

Prompt Guide

For generation, state the intended result first, then add the subject or source treatment, progression, style, and delivery constraints. Keep one creative variable per phrase, use the documented field names for controls, and change one setting at a time when comparing results.

{
  "aspect_ratio": "16:9",
  "duration": 5,
  "images": [
    [
      "https://example.com/reference.png"
    ]
  ],
  "prompt": "Based on @Video1, generate the next shot. keep the style of the video",
  "video": "https://static.sandbase.ai/examples/mirrored/ee8d5dc74ad3-oVdiICFXY03Vbam-08Aj8_output.mp4"
}

Technical Specs

SpecValue
Model IDkwaivgi/kling-video/o1/pro/video-to-video
Inputsaspect_ratio, duration, images, keep_audio, prompt, video
Required inputsprompt
Output fieldscontent_type, url
ExecutionAsync (submit, then poll for result)
Duration3 / 4 / 5 / 6 / 7 / 8 / 9 / 10
Aspect Ratio16:9 / 9:16 / 1:1

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