GeminiVideoOmni - ComfyUI Built-in Node Documentation - ComfyUI

Generate a video with audio from a text prompt using Google’s Gemini Omni Flash model. Optionally provide reference images and/or videos to guide or edit the result. Describe the desired length (3-10s) and aspect ratio (16:9 or 9:16) directly in the prompt.

Inputs

Common Inputs

Parameter	Description	Data Type	Required	Range
`model`	The Gemini video model used to generate the video.	DYNAMIC_COMBO	Yes	”Omni Flash”
`seed`	Seed controls whether the node should re-run; results are non-deterministic regardless of seed (default: 42).	INT	Yes	0 to 2147483647

Omni Flash Inputs

Parameter	Description	Data Type	Required	Range
`prompt`	Describe the video to generate. Specify the length and aspect ratio directly in the prompt, e.g. “a 6-second clip in 16:9”. Length may be 3-10 seconds; the aspect ratio must be 16:9 (landscape) or 9:16 (portrait). The output is 720p, 24 FPS, with audio.	STRING	Yes	Minimum 1 character after stripping whitespace
`temperature`	Controls randomness. Lower is more focused/deterministic, higher is more varied (default: 1.0).	FLOAT	No	0.0 to 2.0
`top_p`	Nucleus sampling: sample from the smallest token set whose cumulative probability reaches top_p (default: 0.95).	FLOAT	No	0.0 to 1.0

Reference Inputs

Parameter	Description	Data Type	Required	Range
`images`	Growable slot: connect one or more reference images (`image_1`…`image_14`) to guide or animate the video. Up to 14 images in total.	IMAGE	No	0 to 14 images
`videos`	Growable slot: connect one or more reference videos (`video_1`…`video_3`) to guide or edit. Up to 3 videos, each up to 10 seconds long.	VIDEO	No	0 to 3 videos, each max 10 seconds

Notes:

If an image input contains multiple frames, each frame counts toward the maximum of 14 images.
When reference images or videos are provided, the total encoded media size must stay under about 90 MB; otherwise the node raises an error.
When no reference images or videos are provided, the node generates the video from the text prompt alone.

Outputs

Output Name	Description	Data Type
`VIDEO`	The generated video with audio from the Gemini model.	VIDEO
`STRING`	Any text response from the model, such as reasoning or explanations.	STRING

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