For anyone having the same issue, I got a "fix". Quit Xcode-beta and open terminal. Enter the following: defaults write com.apple.dt.Xcode IDEChatChatGPTEnabled 0 This will reset the settings for ChatGPT. Open Xcode-beta again and switch to Coding Assistant. Now the button for setting up should appear again. I was able to reproduce this a couple of times. If it still doesn't work, you can reset all the defaults for Xcode by calling defaults delete com.apple.dt.Xcode This deletes and rewrites the defaults for Xcode entirely.