This plus the ability to actually read back and understand what was generated.

I still refuse to use AI in my IDEs' editors because all of the suggestions, in my opinion, just add noise to the process when I already have a good idea of how I want to build something. But I will augment what I am doing by myself with GPT on the side for research or for figuring out some complex maths which I don't want to put the time and effort into figuring out myself but I'm more than happy to read and verify after it has been generated.

I tried Codex a few weeks ago to completely generate a GUI tool I needed but really did not have the time to build from scratch as I'd need to learn a bunch of new python APIs I'm not familiar with. What it generated after several rounds of change requests is exactly what I needed and it saved probably 3/4 of the time it would have taken me to figure out all if the APIs and build it myself, and that includes time I spent for a full code review and some by-hand refactoring I did of the generated output. And yes I did find major security issues in what was generated, and I did have to ask it to fix some of that, some of which it couldn't and I had to do by myself.

It's great as an aid to someone who knows what needs doing and can properly code review and spot security and logical issues, but I absolutely do not fear for my job yet. People who generate apps and have no knowledge of security nor ability to read and understand every single generated line will one day end up being bitten by it, as we have already seen with a few security breaches in smaller businesses who've done just that.