Claude Code more than anything else now, and not for content in the chat sense. I point it at a folder with a prompt file and a CSV of keywords and it writes and files the tier articles, runs the checks, fixes what broke. Same thing for cleaning verified lists and pulling GSC exports into something readable. That plus GSA SER and RankerX for the actual building is basically the whole stack.
Chat window for research and briefs like everyone else. The coding agent side is where the real time saving turned out to be, because it does the boring repeated stuff rather than the clever stuff.
typo fixed with claude code since i am not a native english speaker so yeah like me from non native speaker AI helps a lot in this case i use fable for that