I was using 3.5 until quite about a month ago. Now I'm using 4o. 4o is better but its not a huge difference. I was surprised as I expected it to be a huge im

I was using 3.5 until quite about a month ago. Now I'm using 4o. 4o is better but its not a huge difference. I was surprised as I expected it to be a huge improvement. I haven't tried the regular "4" model yet, I've heard it used to be quite good but maybe got worse. In any case, these models are good for simple stuff as far as I can tell, but can't do anything hard or off the beaten path. They can give me ideas for solving hard issues, but any code they generate is killed by hallucinations and general lack of anything resembling contextual knowledge. It can be quite obstinate too, even if I explain I'm trying to solve an unusual problem, and so need out of the box "thinking", 4o will try to force me back to some mainstream solution that I can't use. I also use Amazon's Q and that is good for simple/repetitive automation but often generates extremely wacky stuff otherwise. They are all apparently better at Python than anything else. I don't use that so maybe that's an issue.