>> AI rarely seems to write better code than humans.

This assertion is at the crux of a lot of these debates. Fundamentally it depends on what is meant by "better code", does it not?

Code that is bug free? Frontier models are inarguably better at that, because they can think of far more edge cases and test each one much faster than you can. You can argue that its code and surrounding tests are frequently overkill, but that's a dial you can tweak until you're happy.

Code that is performant? Frontier models are inarguably better at that too. They can create a benchmark harness and run it over and over to optimize the code they wrote while you're still poring over the docs on which method of iterating over a list is faster.

Code that is secure? Frontier models are also better at that, for the above two reasons: they can create complex security vulnerability plans and run swarms of agents to audit the code and attack the system that runs that code until it's like a god damn fortress.

Code that is easily understood by humans and fits coherently with the rest? I think humans are better at this still, because humans are definitionally the best at understanding what is easily understood by humans. I posit that this definition of "better code" is quickly going out of fashion though.