KlingOmniProFirstLastFrameNode - ComfyUI Built-in Node Documentation

This node uses the latest Kling AI model to generate a video from a start frame, an optional end frame, or reference images. It can create a single video or a multi-shot storyboard with individual prompts and durations for each segment. The node processes these inputs to produce a video of a specified length and resolution, with optional audio generation.

Inputs

Parameter	Description	Data Type	Required	Range
`model_name`	The specific Kling AI model to use for video generation.	COMBO	Yes	`"kling-v3-omni"` `"kling-video-o1"`
`prompt`	A text prompt describing the video content. This can include both positive and negative descriptions. Ignored when storyboards are enabled.	STRING	Yes	-
`duration`	The desired length of the generated video in seconds (default: 5).	INT	Yes	3 to 15
`first_frame`	The starting image for the video sequence.	IMAGE	Yes	-
`end_frame`	An optional end frame for the video. This cannot be used simultaneously with `reference_images`. Does not work with storyboards.	IMAGE	No	-
`reference_images`	Up to 6 additional reference images.	IMAGE	No	-
`resolution`	The output resolution for the generated video (default: “1080p”).	COMBO	No	`"4k"` `"1080p"` `"720p"`
`storyboards`	Generate a series of video segments with individual prompts and durations. Only supported for `kling-v3-omni`. When enabled, each storyboard requires a prompt and duration input.	DYNAMIC_COMBO	No	`"disabled"` `"1 storyboard"` `"2 storyboards"` `"3 storyboards"` `"4 storyboards"` `"5 storyboards"` `"6 storyboards"`
`generate_audio`	Generate audio for the video (default: False). Only supported for `kling-v3-omni`.	BOOLEAN	No	True / False
`seed`	Seed controls whether the node should re-run; results are non-deterministic regardless of seed (default: 0).	INT	No	0 to 2147483647

Important Constraints:

The end_frame input cannot be used at the same time as the reference_images input.
The end_frame input cannot be used simultaneously with storyboards.
The kling-video-o1 model does not support durations greater than 10 seconds, audio generation, 4k resolution, or storyboards.
If you do not provide an end_frame or any reference_images with the kling-video-o1 model, the duration can only be set to 5 or 10 seconds.
All input images (first_frame, end_frame, and any reference_images) must have a minimum dimension of 300 pixels in both width and height.
The aspect ratio of all input images must be between 1:2.5 and 2.5:1.
A maximum of 6 images can be provided via the reference_images input.
The prompt text must be between 1 and 2500 characters in length (0 characters allowed when storyboards are enabled).
When storyboards are enabled, the total duration of all storyboard segments must equal the global duration value.
Each storyboard prompt must be between 1 and 512 characters in length.

Outputs

Output Name	Description	Data Type
`output`	The generated video file.	VIDEO

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