The schnell model is a distilled model that can generate a good image with only 4 steps.

detailed cinematic dof render of an old dusty detailed CRT monitor on a wooden desk in a dim room with items around, messy dirty room. On the screen are the letters "FLUX Schnell" glowing softly. High detail hard surface render

If you get an error in any of the nodes above make sure the files are in the correct directories. See the top of the examples page for the links : https://comfyanonymous.github.io/ComfyUI_examples/flux/ flux1-schnell.safetensors goes in: ComfyUI/models/unet/ t5xxl_fp16.safetensors and clip_l.safetensors go in: ComfyUI/models/clip/ ae.safetensors goes in: ComfyUI/models/vae/ Tip: You can set the weight_dtype above to one of the fp8 types if you have memory issues.