I asked GPT4 to refactor a simple, working python script for my smart lights... and it completely butchered the code and apologized mid-generation.
No amount of pleading or correction would get it to function as it did just a week or two ago.
It is so over.
I noticed this today working on some bash scripts. Compared to a few weeks ago it's become noticeably dumber, but also faster.
They must be understandably desperate to burn less cash with each API call.