[AlexeyBrin]

Your CTO is right, reviewing code is harder than writing it. Any experienced programmer will confirm that.

If the human is the bottleneck the logical step is to use a different AI to review the code produced by the original AI. You can even use two different AIs to review the code generated by the first one and accept the code if both agree it does not have bugs. I doubt this will guarantee a high quality product, but it is the solution to doing all your code with AI.

The prudent choice would be to push any generated code to production only after it was tested and reviewed by an experienced human programmer.