ControlNet Union ProMax, Pixart Sigma 900M & More New Stuff!

Lots of new free stuff for ComfyUI this week including the new ControlNet Union ProMax Model, Pixart Sigma going to 900M, a better background remover and more! Want to support the channel? Repos: Learn more! New Samplers & Schedulers in ComfyUI: PixArt Sigma: == Start your ComfyUI Journey! == 1. Installing Anaconda for MS Windows Beginners - 2. Installing ComfyUI for Beginners - 3. ComfyUI Workflows fo