SaveLatent - ComfyUI Built-in Node Documentation

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

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The SaveLatent node saves latent tensors to disk as files for later use or sharing. It takes latent samples and saves them to the output directory with optional metadata including prompt information. The node automatically handles file naming and organization while preserving the latent data structure.

Inputs

Parameter	Data Type	Required	Range	Description
samples	LATENT	Yes	-	The latent samples to be saved to disk
filename_prefix	STRING	No	-	The prefix for the output filename (default: “latents/ComfyUI”)
prompt	PROMPT	No	-	Prompt information to include in metadata (hidden parameter)
extra_pnginfo	EXTRA_PNGINFO	No	-	Additional PNG information to include in metadata (hidden parameter)

Outputs

Output Name	Data Type	Description
ui	UI	Provides file location information for the saved latent in the ComfyUI interface