I've encountered the same bemusing behavior, with Copilot helping more accurately with coding tasks, and I've started to think of it as akin to "personalities."
You don't go to your painter friend and ask them for coding help, much like you don't go to the general-purpose GPT; you'd go to the Copilot, who enjoys programming tasks or whatever.
Can GPT help? Sure. But the skeletons, rough jumping-off points, etc. all scream to me "I'm not going to do your homework for you," which I love.
In the end, both have been immensely helpful, but I use them for different things.
Oh yeah, I have some context-prompts that I use for different situations and they significantly help get the right answers. Still, I've never found coding to be successful other than boiler plaiting and hinting. I mean I can get it to give me usable code, that's for sure, but not good code. Definitely not optimized. It'll just give you essentially StackOverflow code.
You don't go to your painter friend and ask them for coding help, much like you don't go to the general-purpose GPT; you'd go to the Copilot, who enjoys programming tasks or whatever.
Can GPT help? Sure. But the skeletons, rough jumping-off points, etc. all scream to me "I'm not going to do your homework for you," which I love.
In the end, both have been immensely helpful, but I use them for different things.