I don't use it to write anything concrete, i have not found it to be good at that. I also use FastGPT (Kagi's GPT) as a .. faster search frontend. FastGPT fails to find stuff frequently but it also is so damn fast it feels faster than me searching+clicking_link+skimming_page.

I also like ChatGPT for exploring APIs which i may not know, but can easily validate. It's wrong often, but when i can validate it's not a big deal, and what i get out of it is the ability to Q&A. I find API documentation frequently frustrating because while i prefer documentation, i frequently don't know how to get to my answer. Documentation often feels like i need to read the entirety of everything before i can reliably get any answer, and frankly i'm impatient. GPT gives me a more interactive exploration of content. It either knows the answer, or can often point me in the direction to find it myself.

All this is to say ChatGPT & friends have not revolutionized my work. Hell during my day job i rarely use it because it's a domain i know well. But i do have the belief that it helps me enough to justify the cost, currently.