I use ChatGPT 4 and 3.5 via the api sometimes.
I've recently started using Claude Opus which i prefer for coding and maybe in general. Apart from the crappy message limit and lack of stop and edit buttons. I think it might stick with it and cancel gpt.
In general i use Ai to help with my job of general it guy, marker, admin, data entry etc. i use it to proof read, to get ideas, to transform data, to code it or to comment code, translate, transcribe, to bug fix. I always feel i could be making better use of it in my day but it is transformative for the stuff it does.
For the API I'm using a workflow for Alfred on Mac that allows me really quick key presses access to prompts and questions on selected text. I love it.
Niagara launcher is worth the time it takes to change your habit. Once you understand it you just can't conceive how people waste their time with normal home screens and organisation. It's just so damn fast to get to where you want to be with Niagara launcher.