Node Reference¶

All UmeAiRT nodes use the ⬡ prefix in ComfyUI and are organized into categories in the right-click menu under UmeAiRT/.

Loaders¶

Load models, VAEs, and text encoders into memory. Menu: UmeAiRT/Loaders

Node	Display Name	Output	Use Case
Checkpoint Loader	⬡ Checkpoint Loader	UME_BUNDLE	SD 1.5 / SDXL single-file checkpoints
FLUX Loader	⬡ FLUX Loader	UME_BUNDLE	FLUX architecture (dual CLIP)
Z-IMG Loader	⬡ Z-IMG Loader	UME_BUNDLE	Z-IMAGE / Lumina2 architecture
Bundle Auto-Loader	⬡ 📦 Bundle Auto-Loader	UME_BUNDLE	Auto-download + load from manifest
Lightning Accelerator	⬡ ⚡ Lightning Accelerator	UME_BUNDLE	Auto-apply QWEN Lightning LoRAs (4/8 steps)

Stack LoRA models for style/character modifications. Menu: UmeAiRT/Loaders/LoRA

Node	Display Name	Output	Use Case
LoRA Blocks	⬡ LoRA 1x/3x/5x/10x	UME_LORA_STACK	Stack LoRA models with strengths

Configure generation parameters and prompts. Menu: UmeAiRT/Inputs

Node	Display Name	Output	Use Case
Generation Settings	⬡ Generation Settings	UME_SETTINGS	Dimensions, steps, CFG, sampler, seed
Prompt Inputs	⬡ Positive/Negative Prompt	POSITIVE/NEGATIVE	Text prompt editors

Load and process images for generation. Menu: UmeAiRT/Image

Node	Display Name	Output	Use Case
Image Loader	⬡ Image Loader	UME_IMAGE	Load source image for img2img/inpaint
Image Process	⬡ Image Process	UME_IMAGE	All-in-one: mode, denoise, resize, outpaint
Image Process (Img2Img)	⬡ Image Process (Img2Img)	UME_IMAGE	Dedicated img2img
Image Process (Inpaint)	⬡ Image Process (Inpaint)	UME_IMAGE	Dedicated inpainting
Image Process (Outpaint)	⬡ Image Process (Outpaint)	UME_IMAGE	Target dimensions + alignment
ControlNet	⬡ ControlNet Apply	UME_IMAGE	Apply ControlNet guidance to image bundle

Central sampling hub. Menu: UmeAiRT/Sampler

Node	Display Name	Output	Use Case
KSampler	⬡ KSampler	UME_PIPELINE	Central sampling hub — creates the generation pipeline

Enhance generated images. Menu: UmeAiRT/Post-Process

Node	Display Name	Output	Use Case
UltimateSD Upscale	⬡ UltimateSD Upscale	UME_PIPELINE	Tiled upscaling with redraw
SeedVR2 Upscale	⬡ SeedVR2 Upscale	UME_PIPELINE	AI-native upscaling
Detail Refiner	⬡ Detail Refiner	UME_PIPELINE	Multi-pass micro-detail enhancement
Subject Detailer	⬡ Subject Detailer	UME_PIPELINE	Automatic face/hand enhancement
Detailer Daemon	⬡ Detailer Daemon	UME_PIPELINE	Detail enhancement via sampling schedule

Save final images. Menu: UmeAiRT/Output

Node	Display Name	Output	Use Case
Image Saver	⬡ Image Saver	—	Save with metadata + naming

Convert between UmeAiRT bundles and standard ComfyUI types. Menu: UmeAiRT/Interop

Node	Display Name	Output	Use Case
Pack Pipeline	⬡ Pack Pipeline	UME_PIPELINE	Create pipeline from raw image for standalone upscale

See Pack / Unpack Overview for the full list of interoperability nodes.

Standalone workflow helpers. Menu: UmeAiRT/Utils

Node	Display Name	Output	Use Case
Bundle Downloader	⬡ 💾 Bundle Model Downloader	STRING	Pre-download models without loading
⬡ UmeAiRT Signature	⬡ UmeAiRT Signature	—	Branding node for canvas