Good word to know, yes. Best word to use, no.

If you know “origin” or “source” and those words suffice, using a word that means the same thing but you don’t know is strictly worse for communication.

So if Claude is writing a novel, maybe provenance is the best word to use at times. If its a codebase README or variable name, its usually not.

LLMs haven't mastered the use of regular language that is the background of a jargon. Source and origin are exactly the word you'd use in IT.