Part 2 of my Lab series. Checkout my other workflows on my profile, they can all be used in conjunction!
Sorry for the clutter! - subgraphs seem to break during upload (NSFW Update has the fixed version)
⚡ Ultimate Adaptive Upscale & Detail Workflow
A professional-grade ComfyUI upscale pipeline built for every VRAM tier — from high-end workstations to mid-range rigs. No compromises, no separate workflows. One unified system that intelligently scales to your hardware while delivering exceptional output quality.
🎯 Three-Tier VRAM Adaptive Upscaling
Forget juggling multiple workflows for different hardware. This pipeline gives you three battle-tested upscale paths under one roof:
🔥 High VRAM — SeedVR
For those with the horsepower to match their ambitions. SeedVR delivers state-of-the-art upscaling with fine detail reconstruction that has to be seen to be believed. If your rig can run it, this is the gold standard.
⚖️ Medium VRAM — Hybrid SeedVR / RealESRGAN 2x
The best of both worlds. A carefully tuned hybrid pipeline combines SeedVR's perceptual quality with RealESRGAN 2x's efficiency, giving mid-range GPUs results that punch well above their weight class. Smooth, detailed, and fast.
💡 Low VRAM — 4x NOMOS
No high-end GPU? No problem. The 4x NOMOS path is optimised for memory-constrained systems without sacrificing the quality you came for. Clean upscales, full detail, minimal VRAM footprint.
🔍 Intelligent Regional Detailing
Upscaling alone isn't enough — this workflow goes further with a fully integrated regional detail pass powered by both BBox detection and SAM segmentation models. Target exactly what matters:
Face — Reconstruct natural skin texture, pores, and subtle facial structure with dedicated face detailing prompts
Eyes — Crisp, lifelike eyes with catchlight preservation and iris detail that holds up at any resolution
Hands — The historic weak point of AI generation, addressed directly with targeted hand correction and refinement
Each region accepts its own prompt, giving you surgical control over how each area is enhanced independently of the rest of the image.
🔄 Dual-Pass Base + Refiner Pipeline
Quality doesn't stop at upscaling. Every image runs through a full two-stage generation pass:
Base model pass — Rebuilds and enhances the upscaled image with a full denoise pass, locking in coherent structure, lighting, and composition
Refiner pass — A dedicated high-frequency refinement stage that sharpens fine detail, corrects micro-artifacts, and elevates the final output to a level a single pass simply cannot match
This dual-pass approach is what separates good upscales from exceptional ones.
💼 Who Is This For?
Artists who demand production-ready output at any scale
Workflows that need hardware flexibility without quality sacrifice
Anyone tired of soft, over-smoothed, or anatomically broken upscales
Creators who want prompt-driven control over every region of their image
Drop it into your ComfyUI workflows folder and let it do the heavy lifting. Your images deserve better than a single-pass upscale.