TLDR; if you inspect the source code of ChatGPT the next/static directory publishes a link that is non-accessible anymore but hints at a future offering that will be similar to Github's co-pilot.
But will it be any good? Only time will tell.
Note: I realized after recording that I called Next.js a service/tool – it's a framework and I'm dumb.
Chapters:
0:00 How I found a secret page on chatGPT
5:00 How Next.js publishes routes in your source code