ComfyUI Frequently Asked Questions

How ComfyUI Frequently Asked Questions works on Windows

Direct answers to common questions about ComfyUI Windows requirements, offline operation, commercial rights, and safe weights. Clearing up confusion around desktop vs portable builds, VRAM limits, safetensors safety, and local file storage.

Every page in this directory focuses on practical local execution on Windows 10 and Windows 11, keeping your checkpoints, LoRAs, and generated outputs entirely on your own SSD.

Start by grabbing the current Windows build from /download, or browse the guides and node blueprints linked below.

Key workflow principles

• Keep large `.safetensors` and `.gguf` weights inside organized `models/` subfolders or map shared directories through extra_model_paths.yaml.
• Match your model precision (FP16, FP8 e4m3fn, or GGUF Q4/Q8) to your card's VRAM tier so sampling stays in GPU memory without paging to disk.
• Drag any generated PNG directly onto the ComfyUI Studio canvas to reload its exact node wiring, seed, and sampler values.

Featured pages in ComfyUI Frequently Asked Questions

• Is ComfyUI Free and Open Source? — Direct Windows guide for "is comfyui free": folder paths, node wiring, and VRAM settings in ComfyUI.
• How Much VRAM Do You Really Need for ComfyUI? — Direct Windows guide for "how much vram for comfyui": folder paths, node wiring, and VRAM settings in ComfyUI.
• Can ComfyUI Run Flux and Video on an 8 GB GPU? — Direct Windows guide for "can comfyui run on 8gb vram": folder paths, node wiring, and VRAM settings in ComfyUI.
• Does ComfyUI Work 100% Offline on Windows? — Direct Windows guide for "does comfyui work offline": folder paths, node wiring, and VRAM settings in ComfyUI.
• Why Did Users Switch from Automatic1111 to ComfyUI? — Direct Windows guide for "is comfyui better than automatic1111": folder paths, node wiring, and VRAM settings in ComfyUI.
• Does the ComfyUI Installer Include Checkpoints? — Direct Windows guide for "does comfyui come with models": folder paths, node wiring, and VRAM settings in ComfyUI.
• Can You Use ComfyUI Outputs for Commercial Projects? — Direct Windows guide for "comfyui commercial use license": folder paths, node wiring, and VRAM settings in ComfyUI.
• Why Is ComfyUI Faster and Lighter on VRAM Than WebUIs? — Direct Windows guide for "why is comfyui so fast": folder paths, node wiring, and VRAM settings in ComfyUI.
• What Is the Best GPU for ComfyUI on Windows? — Direct Windows guide for "best gpu for comfyui windows": folder paths, node wiring, and VRAM settings in ComfyUI.
• How Much SSD Storage Space Does ComfyUI Need? — Direct Windows guide for "how much disk space does comfyui need": folder paths, node wiring, and VRAM settings in ComfyUI.