I have also a weird story to tell that a human did and it is as crazy as this. It happen in 2019 so no LLMs at all.
A person that was hired as an expert in our startup spent more than one week full time working on implementing his solution to the problem we were having. I checked the code after one week to see the progress and was curious how they are implementing an already crazy sounding idea.
I found that the whole week was spent re-implementing in python, python's built-in "float" function. That was it, the whole code was just that.
Our problem was related to financial services and their implementation of "float" was not even correct.
But AI is only able to get you through those already easy first 90-99%. The hard and most time-consuming part of getting to 100% is still there, and AI does not help or make us more productive achieving that, in my opinion.
I am not affiliated with pangram.