MinimaxHailuo03FirstLastFrameNode - ComfyUI Built-in Node Documentation - ComfyUI

This node generates a video from a first frame image and an optional last frame image using the MiniMax H3 model. The video follows the aspect ratio of the supplied images and, when a last frame is provided, animates from the first frame toward the last frame.

Inputs

Common Inputs

Parameter	Description	Data Type	Required	Range
`model`	Model to use for video generation. Selecting a model reveals its specific settings (prompt, resolution, duration).	DYNAMIC_COMBO	Yes	”MiniMax H3”
`first_frame`	First frame image for the video. The aspect ratio of the generated video follows this image. Must be at least 256x256 pixels with a width-to-height aspect ratio between 0.4 and 2.5.	IMAGE	Yes	-
`last_frame`	Optional last frame image for the video. When provided, the video starts from the first frame and ends at this image. Must meet the same size and aspect ratio requirements as `first_frame`.	IMAGE	No	-
`seed`	Random seed. The same request with the same seed gives similar, but not guaranteed identical, results. Includes a “control after generate” option to randomize after each generation. Default: 42.	INT	Yes	0 to 4294967295
`watermark`	Whether to add an AIGC watermark to the video. This is an advanced parameter. Default: False.	BOOLEAN	Yes	True False

MiniMax H3 Inputs

These inputs appear when “MiniMax H3” is selected in the model selector.

Parameter	Description	Data Type	Required	Range
`prompt`	Text prompt for video generation. Must contain at least one non-whitespace character.	STRING	Yes	-
`resolution`	Resolution of the output video.	COMBO	Yes	”768P" "2K”
`duration`	Duration of the output video in seconds (4-15). Default: 5.	INT	Yes	4 to 15

Note on constraints:

The text prompt inside the model combo cannot be empty; whitespace-only prompts are rejected.
Any provided frame image (first_frame and, if used, last_frame) must be at least 256 pixels wide and 256 pixels tall, with a width-to-height aspect ratio between 0.4 and 2.5 (approximately 2:5 to 5:2).
last_frame is optional. When omitted, the video is generated from the first frame only.
The aspect ratio of the output video is determined by the supplied images, not by a separate ratio setting.

Outputs

Output Name	Description	Data Type
`video`	The generated video created from the first frame and optional last frame using the MiniMax H3 model.	VIDEO

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