While others here have touched on the idea that Codex has changed their coding habits, what I find interesting is that Codex has changed how I write code altogether. For example, I had to connect a database to an API a little while ago. Obviously I had the option to use an ORM as one would normally. But instead, I just wrote out all the SQL commands and wrapper functions in one big file. Since it was all tedious and predictable, Codex helped me to write it in just a few minutes, and I didn't need to muck around with some complex ORM. These are the tradeoffs I'm personally excited about.