Writing the code in the grand scheme of things isn't the hard part in software development. The hard parts are architecture and actually building the right thing, something an LLM can't really help you with.

It's not AI, there is no intelligence. A language model as the name says deals with language. Current ones are surprisingly good at it but it's still not more than that.

What? Leading edge LLMs are great at architecture, schema design and that sort of thing if you give them enough context and are not working on anything too esoteric. I’d argue they are better at this than the actual coding part.