I'm current on Sequoia/ Xcode 16, it works Swift Assist did not work on Sonoma for me. Predictive code completion seems to be working thus far. However, the more advanced prompt options are probably not available yet If you're talking about disabling predictive code completion and suggested completions while typing. Xcode < Settings < Text Editing. I believe the options you were looking for maybe be in here here. You can also uninstall the model in components.

@sergeirr Thank you

@seanwoodward did you ever find a fix to this?

Strange, this recently just started happening to me out of nowhere.