Kling 4.0 Edit Video - ComfyUI Built-in Node Documentation

Edits an existing video with a text prompt using the Kling 4.0 model, optionally guided by reference videos and reference images. The result keeps the length of the input video. Use it to change what happens in a clip, restyle it, or swap elements while the original timing stays intact.

Inputs

Common Inputs

Parameter	Description	Data Type	Required	Range
`model`	Model selector. Only `"kling-4.0"` is available; selecting it reveals the inputs below.	DYNAMIC_COMBO	Yes	`"kling-4.0"`

kling-4.0 Inputs

These inputs appear when model is set to "kling-4.0".

Parameter	Description	Data Type	Required	Range
`video_1`	The video to edit, 3 to 30 seconds long. The output keeps its length.	VIDEO	Yes	3 to 30 seconds
`reference_videos`	Growable slots for reference videos, up to 4. Refer to them in the prompt as `@Video2` and so on. Each video and all videos together must be 3 to 30 seconds long.	AUTOGROW	No	0 to 4 videos
`reference_images`	Growable slots for reference images, up to 10. Refer to them in the prompt as `@Image1`, `@Image2` and so on.	AUTOGROW	No	0 to 10 images
`prompt`	Description of what to change and what to keep. Refer to the video being edited as `@Video1`, the reference videos as `@Video2` and so on, and the images as `@Image1` and so on.	STRING	Yes	1 to 26000 characters
`resolution`	Resolution of the output video. Default: `"720p"`.	COMBO	Yes	`"720p"` `"1080p"`
`aspect_ratio`	Aspect ratio of the output video. `"adaptive"` keeps the aspect ratio of the input video. Default: `"adaptive"`.	COMBO	Yes	`"adaptive"` `"16:9"` `"9:16"` `"1:1"` `"21:9"`
`seed`	Seed controls whether the node should re-run; results are non-deterministic regardless of seed. Default: 42.	INT	Yes	0 to 2147483647

Constraints and behavior:

The input video and every reference video must be 3 to 30 seconds long, at least 700x700 and at most 4553x4553 pixels, no more than 8,294,400 pixels in total, with an aspect ratio between 2:5 and 5:2 and a frame rate of at least 24 fps. All videos together must not exceed 30 seconds.
Every reference image must be at least 300x300 pixels with an aspect ratio between 2:5 and 5:2, and at most 10 images can be connected.
A prompt that mentions @VideoN or @ImageN raises an error when fewer than N inputs of that kind are connected.

Outputs

Output Name	Description	Data Type
`video`	The edited video, downloaded from the provider once the task completes. It has the same length as the input video.	VIDEO

This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! Edit on GitHub

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​Inputs

​Common Inputs

​kling-4.0 Inputs

​Outputs

Inputs

Common Inputs

kling-4.0 Inputs

Outputs