Minor correction: GPT-4 was announced on March 14, 2023, less than two years ago. I don’t remember how much LLMs had been discussed as coding assistants before then, but it was Greg Brockman’s demonstration of using it to write code that first brought that capability to my attention:
https://www.youtube.com/live/outcGtbnMuQ?si=oTMA02ns_BJDRS4c...
Advances since then have indeed been remarkable.