GrokVideoNode - ComfyUI Built-in Node Documentation

The Grok Video node generates a short video from a text description. It can create a video from scratch using a prompt, or generate a video from a single input image. The node sends the request to an external API and returns the generated video.

Inputs

Parameter	Description	Data Type	Required	Range
`model`	The model to use for video generation (default: `"grok-imagine-video-1.5-lite"`).	COMBO	Yes	`"grok-imagine-video"` `"grok-imagine-video-1.5"` `"grok-imagine-video-1.5-lite"`
`prompt`	Text description of the desired video. Optional for the `grok-imagine-video-1.5` models when an input image is provided.	STRING	Yes	-
`resolution`	The resolution of the output video. `1080p` is not available for `grok-imagine-video`.	COMBO	Yes	`"480p"` `"720p"` `"1080p"`
`aspect_ratio`	The aspect ratio of the output video. Ignored when an input image is provided; the video follows the image’s aspect ratio.	COMBO	Yes	`"auto"` `"16:9"` `"4:3"` `"3:2"` `"1:1"` `"2:3"` `"3:4"` `"9:16"`
`duration`	The duration of the output video in seconds (default: 6).	INT	Yes	1 to 15
`seed`	Seed to determine if node should re-run; actual results are nondeterministic regardless of seed (default: 0).	INT	Yes	0 to 2147483647
`image`	Optional starting image. If omitted, the video is generated from the text prompt alone.	IMAGE	No	-

Note: When an image is provided, only one input image is supported; providing multiple images will cause an error. The prompt must be non-empty after stripping whitespace when no image is provided, or when using grok-imagine-video even with an image. For the grok-imagine-video-1.5 models, the prompt is optional only when an input image is provided. The 1080p resolution is not available for grok-imagine-video. When aspect_ratio is set to "auto", the aspect ratio is chosen automatically by the service; when an input image is provided, aspect_ratio is ignored and the video follows the image’s aspect ratio.

Outputs

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

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​Inputs

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Inputs

Outputs