LossGraphNode - ComfyUI Built-in Node Documentation

The LossGraphNode creates a visual graph of training loss values over time and displays it as a preview image. It takes loss data from training processes and generates a line chart showing how the loss changes across training steps. The resulting graph includes axis labels and min/max loss values.

Inputs

Parameter	Description	Data Type	Required	Range
`loss`	Loss map from training node.	LOSS_MAP	Yes	-
`filename_prefix`	Prefix for the saved loss graph image. (default: “loss_graph”)	STRING	Yes	-

Outputs

Output Name	Description	Data Type
`ui.images`	The generated loss graph image displayed as a preview.	IMAGE

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​Inputs

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Inputs

Outputs