It wasn’t sure wether the cat was standing on 2 or 4 legs.

I tired a bunch, but current state of the art is text-generation-webui, which can load multiple models and has a workflow similar to stable-diffusion-webui.

https://github.com/oobabooga/text-generation-webui

For the record, I also found that turtl is FOSS and seems to have a decent UI. I will give it a try.

https://github.com/turtl

https://turtlapp.com/