I am experiencing exactly the same issue. I have ChatGPT Plus subscription that works fine in web and in ChatGPT app. I am logged into ChatGPT in Xcode and I am getting the same "Over daily limit" error message.

Same here. I encountered it first yesterday, today it came back after maybe 10 or 20 prompts while coding. And I have ChatGPT Plus subscription, and I am logged in. Apparently it is a wider problem.

Same here, AI assistant is terribly slow and after all not usable.