As someone who has made a career by having unique insights into solutions for software problems, I can confidently says it's not the same as the calculator. AI is bad at gathering context from an in-person customer meeting, linking their experience to fundamental structural problem with the data model and formulating a solution. You know how you know to make that insight? You have to have read and internalized the code. The easiest way to do that is by having written it yourself by hand or direct instruction to the AI. This exact scenario has played out for me more times than I can count, and it's why I find so little value in using AI.