ComfyUI Course - Learn ComfyUI From Scratch | Pixaroma - How to Upscale Images in ComfyUI (Ep05)

How to Upscale Images in ComfyUI (Ep05) - best upscaling workflows (free + paid), model setup, VRAM tips, and clean 4K results. In this episode, you’ll learn multiple ways to upscale images in ComfyUI. I walk through 7 ready-to-use upscale workflows (from simple resize → neural upscalers → diffusion tiled upscaling → Flux workflows → Seed VR 2 → paid 4K/API upscalers), and explain when to use each one depending on quality, speed, and VRAM. What you’ll be able to do after this tutorial: - Update ComfyUI (Easy Installer) and install the nodes used in this episode - Import the Episode 05 workflow pack and run each upscale workflow - Compare non-AI resize vs. neural upscalers vs. diffusion upscaling - Install and test different PTH upscaler models (2x / 4x / 8x) - Control final size using Scale By and model multipliers - Use Tiled Diffusion + tiled VAE decode to avoid VRAM crashes - Upscale with Fluxmania (Nunchaku) and tune denoise properly - Use Seed VR 2 upscalers (model choices, resolution rules, VRAM tricks) - Get high-quality 4K results with Nano Banana Pro and creative upscales with Recraft (credits-based) --- Workflows download links (Discord, GitHub Releases, Google Drive): https://github.com/pixaroma/pixaroma-workflows --- Playlist where I add all the episodes https://www.youtube.com/playlist?list=PL-pohOSaL8P-FhSw1Iwf0pBGzXdtv4DZC Unlock exclusive perks by joining our channel: https://www.youtube.com/channel/UCmMbwA-s3GZDKVzGZ-kPwaQ/join Grab your Pixaroma merch from here: https://www.youtube.com/@pixaroma/store