There are so many examples where all current top models just will loop forever even if you instruct them literally the code. We know many of them, but for instance in a tailwind react project with some degree of complexity (nested components), if you ask for something to scroll in it's space, it will never figure out min-h-0 even if you tell it. It will just loop forever rewriting the code adding and removing things, to the point of it just putting comments like 'This will add overflow' and writing js to force scroll, and it will never work even if you literally tell it what to do. Don't know why, all big and small models have this, and I found Gemini is currently the only model that sometimes randomly has the right idea but then still cannot resolve it. For this we went back to not using tailwind and back to global vanilla css, which I never thought I would say, is rather nice.

I asked Chat GPT 4o to write an Emacs function to highlight a line. This involves setting the "mark" at the beginning, and the "point" at the end. It would only set the point, so I corrected it "no, you have to set both", but even after correction it would move the point to the beginning, and then moved the point again to the end, without ever touching the mark.