KlingVideoExtendNode - ComfyUI Built-in Node Documentation

The Kling Video Extend Node allows you to extend videos created by other Kling nodes. It takes an existing video identified by its video ID and generates additional content based on your text prompts. The node works by sending your extension request to the Kling API and returning the extended video along with its new ID and duration.

Inputs

Parameter	Description	Data Type	Required	Range
`prompt`	Positive text prompt for guiding the video extension	STRING	No	-
`negative_prompt`	Negative text prompt for elements to avoid in the extended video	STRING	No	-
`cfg_scale`	Controls the strength of prompt guidance (default: 0.5)	FLOAT	No	0.0 - 1.0
`video_id`	The ID of the video to be extended. Supports videos generated by text-to-video, image-to-video, and previous video extension operations. Cannot exceed 3 minutes total duration after extension.	STRING	Yes	-

Note: The video_id must reference a video created by other Kling nodes, and the total duration after extension cannot exceed 3 minutes. The positive prompt must not be empty and both prompts must be under 2500 characters.

Outputs

Output Name	Description	Data Type
`output`	The extended video generated by the Kling API	VIDEO
`video_id`	The unique identifier for the extended video	STRING
`duration`	The duration of the extended video	STRING

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KlingTextToVideoWithAudio - ComfyUI Built-in Node Documentation

KlingVideoNode - ComfyUI Built-in Node Documentation

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