Recent changes to the model a net loss

I’m wondering if others have notice that from mid-November or perhaps it was a bit later, the model really took a turn for the worse? Instead of answering with direct answers, it just plays back what I told it and adds no insight or truly helpful layers of information. I really have to push the model not to simply “play back” my own information and it has a hard time following instructions now too - simple ones! Also, it doesn’t really respect the custom instructions.