Ask HN: Can ChatGPT build a real, sophisticated, working app?

ChatGPT seems to me to be capable of building fully-functional apps, but just refuses to do so -- like they're mad at me or something.

For instance, I had the OpenAI ChatGPT free version (GPT 3.5) generate a simple PHP-based cronjob -- it introduced bugs, did not use PHP constants, introduced regession bugs between modifications, etc.