Using APIs that don't exist is the biggest problem I've seen with ChatGPT, and it seems GPT-4 as well.
Can you elaborate?
This is especially difficult because I don't know when it's wrong and it's so damn confident. I've gotten better at questioning its correctness when the code doesn't perform as expected but initially it cost me upwards of 30min per time.
Still, I would say between ChatGPT and Copilot - I'm WAY further ahead.
public copilot uses gpt3.5, as does non premium chatgpt.