Things are moving incredibly quickly in the image generation space, so I wanted to take a few minutes and show you how you could create amazing desktop background on your own machine with ComfyUI and Flux Schnell.
Tiny warning:
ComfyUI isn’t for the faint of heart, but it’s incredibly powerful and fun to tinker with. If you want just want to create images and not worry about the inner workings of how it gets created, I would recommend using something like Forge instead. Also incredibly powerful, but much easier to get started with. This is what I usually use, but I really like ComfyUI when it comes to fine-tuning how the images are generated.
To get started you need a few things:
- ComfyUI installed, see their docs if you need help
- Flux Schnell (I use the bnb NF4 variant)
- In
ComfyUI/models/checkpoints
- In
- Flux VAE
- In
ComfyUI/models/vae
- In
- Flux CLIP models clip_l and t5xxl_fp8_e4m3fn
- In
ComfyUI/models/clip/
- In
- NF4 support in ComfyUI (in ComfyUI, open the Manager menu and “Install via Git URL”)
Now grab this workflow, drag it into ComfyUI, and it’ll automatically populate the entire workflow. Make changes in the green CLIP Text Encode to start creating whatever you want 
cosmos-comfyui-flux-schnell-wallpaper-demo.json (11.8 KB)
Now you can change the seed, change width and height, use a different sampler, and see how the images you generate take form. Have fun!
Thanks to ComfyUI Wiki for a great long tutorial, check it out if you want even more context.