The first time I've come across this error message using #ChatGPT #GPT4, I guess it was just a matter of time, as it was a bit of chat deepdive today on many topics.
On the other hand, I've also just noticed that as the usage limits were constantly reducing over the last few months, now they are actually undefined, completely gone from the UI with the most recent model version being released...
And no, no real point going back to the "default model", we are way past that :)