LTXVLatentUpsampler - ComfyUI Built-in Node Documentation

Complete documentation for the LTXVLatentUpsampler node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The LTXVLatentUpsampler node increases the spatial resolution of a video latent representation by a factor of two. It uses a specialized upscale model to process the latent data, which is first un-normalized and then re-normalized using the provided VAE’s channel statistics. This node is designed for video workflows within the latent space.

Inputs

Parameter	Data Type	Required	Range	Description
samples	LATENT	Yes		The input latent representation of the video to be upscaled.
upscale_model	LATENT_UPSCALE_MODEL	Yes		The loaded model used to perform the 2x upscaling on the latent data.
vae	VAE	Yes		The VAE model used to un-normalize the input latents before upscaling and to normalize the output latents afterwards.

Outputs

Output Name	Data Type	Description
LATENT	LATENT	The upscaled latent representation, with spatial dimensions doubled compared to the input.