It doesn’t do well at coding anything past a novice level right now.

If you give it something complicated, about half the time it will give you a very convincing wrong answer that appears it will work at first glance but is slightly off. Or it will give you an answer that works but isn’t done in a way that is considered best practice or is just outright a security issue.

It would probably mostly work for some freshmen/sophomore computer science classes though.

Source: I’m a Software Engineer that has been using it since the day it came out. It’s an amazing tool but it has a ways to go in regards to programming.