Yes, GPT-4 is slightly better, given the bigger token window. But that's more than counter acted by the further increased response times. Also, it still shits the bed with anything that's "do a qsort in Python".
This is going to be a tool that will be used by many people, only to realize that diminishes their code comprehension and design skills. We'll have to unlearn all this again, once we see the real world negative impact it has on businesses and software quality.