Flux3VideoContinuationNode - ComfyUI Built-in Node Documentation

This node continues an existing video clip with FLUX 3: the new clip carries on from the final frames of the video you provide. It uploads your source clip, sends the prompt and settings to the generation service, and returns the resulting continuation video once it is ready.

Inputs

Parameter	Description	Data Type	Required	Range
`video`	The clip to continue.	VIDEO	Yes	Single video clip
`prompt`	What the continuation should show; the prompt is interpreted and expanded before generation. (default: "")	STRING	Yes	Non-empty text (minimum 1 character)
`aspect_ratio`	Output aspect ratio. ‘auto’ picks one from the prompt and inputs. (default: “auto”)	COMBO	Yes	”auto” (default) Multiple predefined options
`duration`	Clip length in seconds. ‘auto’ fits the length to the content. (default: “auto”)	COMBO	Yes	”auto” (default) Numeric values in seconds
`resolution`	Output resolution. (default: “720p”)	COMBO	Yes	”720p” (default) “1080p” Other predefined options
`generate_audio`	Generate synchronized audio (ambient, speech, effects). Off produces a video with no audio track. (default: true)	BOOLEAN	Yes	true false
`safety_tolerance`	Moderation tolerance, 0 is the strictest. Requests that send images or video are capped at 2 whatever you set here. (advanced parameter, default: 2)	INT	Yes	0 - 4 (effective maximum: 2 for video requests)
`seed`	Seed to determine if node should re-run; FLUX 3 picks its own seed, so actual results are nondeterministic regardless of this value. (advanced parameter, default: 42)	INT	Yes	0 - 4294967295 (0xFFFFFFFF)

Notes

prompt must contain at least one character, otherwise generation fails. Although the field defaults to an empty string, a non-empty prompt is required to run the node.
safety_tolerance accepts any value from 0 to 4, but since this node sends a video to the API, the effective tolerance is capped at 2 regardless of the selected value.
When duration is set to a number, it is converted to an integer number of seconds. The special value “auto” lets the service fit the length to the content.
The exact option lists for aspect_ratio, duration, and resolution are defined internally by the node. Resolution options include at least “720p” (the default) and “1080p”. Pricing is calculated from the selected resolution and duration; “1080p” is billed at $0.7579 per second, while other resolutions are billed at$ 0.5863 per second.
Authentication and node identification fields (auth_token_comfy_org, api_key_comfy_org, unique_id) are hidden and handled automatically by the platform.

Outputs

Output Name	Description	Data Type
`video`	The generated continuation clip produced by FLUX 3, which carries on from the end of the source video.	VIDEO

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​Inputs

​Notes

​Outputs

Inputs

Notes

Outputs