mozilla keeps saying its new "AI Help" feature is "trained on MDN articles" or "limited to MDN content", which makes it sound like they trained their own model or at least fine-tuned it
but that's not what's happening — as far as i can tell, what they actually do is find a couple MDN articles relevant to your question, send the ENTIRE CONTENTS off to ChatGPT, and ask it nicely IN ENGLISH to answer the question using only what's in those articles