ComfyUI Nodes Explained: The Basics for Beginners

This is the first video of ComfyUI Nodes Explained, a series where I explain the ComfyUI nodes one by one. Before we look at any single node, this video covers the basics every beginner needs: what a node is, its inputs, outputs and settings, and what the wire colors mean. ⬇️⬇️ MODELS USED IN THIS VIDEO (Flux 2 Klein 9B) ⬇️⬇️ 🧠 1. DIFFUSION MODEL (pick ONE, about 9 GB) 📁 Put it in: ComfyUI/models/diffusion_models ✅ fp8, the one I use in the video: https://huggingface.co/silveroxides/FLUX.2-dev-fp8_scaled/resolve/main/flux-2-klein-9b-fp8mixed.safetensors ✅ or int8, the one from my recent ep