Veo3FirstLastFrameNode - ComfyUI Built-in Node Documentation

Complete documentation for the Veo3FirstLastFrameNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The Veo3FirstLastFrameNode uses Google’s Veo 3 model to generate a video. It creates a video based on a text prompt, using a provided first and last frame to guide the start and end of the sequence.

Inputs

Parameter	Data Type	Required	Range	Description
prompt	STRING	Yes	N/A	Text description of the video (default: empty string).
negative_prompt	STRING	No	N/A	Negative text prompt to guide what to avoid in the video (default: empty string).
resolution	COMBO	Yes	"720p" "1080p"	The resolution of the output video.
aspect_ratio	COMBO	No	"16:9" "9:16"	Aspect ratio of the output video (default: “16:9”).
duration	INT	No	4 to 8	Duration of the output video in seconds (default: 8).
seed	INT	No	0 to 4294967295	Seed for video generation (default: 0).
first_frame	IMAGE	Yes	N/A	The start frame for the video.
last_frame	IMAGE	Yes	N/A	The end frame for the video.
model	COMBO	No	"veo-3.1-generate" "veo-3.1-fast-generate"	The specific Veo 3 model to use for generation (default: “veo-3.1-fast-generate”).
generate_audio	BOOLEAN	No	N/A	Generate audio for the video (default: True).

Outputs

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