Veo3VideoGenerationNode - ComfyUI Built-in Node Documentation

Complete documentation for the Veo3VideoGenerationNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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Generates videos from text prompts using Google’s Veo 3 API. This node supports two Veo 3 models: veo-3.0-generate-001 and veo-3.0-fast-generate-001. It extends the base Veo node with Veo 3 specific features including audio generation and a fixed 8-second duration.

Inputs

Parameter	Data Type	Required	Range	Description
prompt	STRING	Yes	-	Text description of the video (default: "")
aspect_ratio	COMBO	Yes	”16:9" "9:16”	Aspect ratio of the output video (default: “16:9”)
negative_prompt	STRING	No	-	Negative text prompt to guide what to avoid in the video (default: "")
duration_seconds	INT	No	8-8	Duration of the output video in seconds (Veo 3 only supports 8 seconds) (default: 8)
enhance_prompt	BOOLEAN	No	-	Whether to enhance the prompt with AI assistance (default: True)
person_generation	COMBO	No	”ALLOW" "BLOCK”	Whether to allow generating people in the video (default: “ALLOW”)
seed	INT	No	0-4294967295	Seed for video generation (0 for random) (default: 0)
image	IMAGE	No	-	Optional reference image to guide video generation
model	COMBO	No	”veo-3.0-generate-001" "veo-3.0-fast-generate-001”	Veo 3 model to use for video generation (default: “veo-3.0-generate-001”)
generate_audio	BOOLEAN	No	-	Generate audio for the video. Supported by all Veo 3 models. (default: False)

Note: The duration_seconds parameter is fixed at 8 seconds for all Veo 3 models and cannot be changed.

Outputs

Output Name	Data Type	Description
output	VIDEO	The generated video file