Flux3ImageToVideoNode - ComfyUI Built-in Node Documentation

Flux 3 Image to Video animates 1 to 10 images with FLUX 3. Each image becomes a frame of the clip: one image opens it, two morph from the first to the second, and more are spread across it or pinned to times you choose.

Inputs

Parameter	Description	Data Type	Required	Range
`prompt`	How the scene should move and sound; the prompt is interpreted and expanded before generation. Must contain at least one character.	STRING	Yes	Multiline text (default: empty)
`keyframes`	1 to 10 images, in playback order. Minimum 256x256 pixels each. Each keyframe becomes a point in the clip.	IMAGE	Yes	1 to 10 images
`placement`	’spread across the clip’ lets FLUX 3 place the images (one opens the clip, two become its start and end); ‘at times’ pins every image to a second you choose.	STRING	Yes	`"spread across the clip"` (default) `"at times"`
`times`	One time in seconds per image, comma-separated and increasing, e.g. ‘0, 2.5, 5’. Required when `placement` is `"at times"`.	STRING	No	Comma-separated seconds (default: “0”)
`aspect_ratio`	Output aspect ratio. ‘auto’ picks one from the prompt and inputs.	STRING	Yes	`"auto"` (default) plus other available options
`duration`	Clip length in seconds. ‘auto’ fits the length to the content.	STRING	Yes	`"auto"` (default) plus other available options
`resolution`	Output resolution.	STRING	Yes	`"720p"` (default) `"1080p"`
`generate_audio`	Generate synchronized audio (ambient, speech, effects). Off produces a video with no audio track.	BOOLEAN	Yes	true / false (default: true)
`safety_tolerance`	Moderation tolerance, 0 is the strictest. Requests that send images or video are capped at 2 whatever you set here.	INT	Yes	0 to 4 (default: 2, advanced setting)
`seed`	Seed to determine if node should re-run; FLUX 3 picks its own seed, so actual results are nondeterministic regardless of this value.	INT	Yes	0 to 4294967295 (default: 42, with control-after-generate)

Note: keyframes is required — the node raises an error if no keyframe image is connected. When placement is "spread across the clip" and 3 or more images are provided, duration must be set to an explicit value (not "auto"); otherwise the node raises an error. When placement is "at times", times must provide one time in seconds per image, in increasing order. Requests that send images are capped at a safety tolerance of 2 regardless of the value set.

Outputs

Output Name	Description	Data Type
`video`	The generated video clip built from the keyframe images at the chosen aspect ratio, duration, resolution, and audio setting.	VIDEO

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​Inputs

​Outputs

Inputs

Outputs