Your question is OpenAI API Solution Writeup. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Take-home: build a solution to a problem using the OpenAI APIs (and alternative methods), then write a paper explaining which methods you tried and why the OpenAI API was ultimately chosen.
Asked in the take-home stage. The expected effort was a 4-8 hour unpaid take-home before the panel.