@SébastienRenauld completely agree, AIs should ABSOLUTELY label and attribute the contents, just like any food item you purchase at a store has a list of ingredients on it, as well as caloric info. At minimum you have a right to know what exactly is in that jambalaya you just ate. Heck, you might want to push content improvements / error corrections upstream, and you can't even do that when you don't know where the information came from! Just the other day ChatGPT told me that ZZ Top had no song titled "I Need You Tonight". Well, uh..
music.youtube.com/watch?v=PTiwF0z5Auc