There are only two successful ad business forms in the digital world, attention or intent. Meta is built on attention and Google and others like amazon are built on intent. Everything else is optimizing the targetting data in some kind of behavioral way to get better intent data or to reach the right users. I have no idea where something like Chatgpt stands on that axis, it has actually very little attention (in hour…
LLMs are great for product research, as in "I want to buy X, what brands are there and what are the pros/cons and what do users report". Lots of potential to game the results there. If that is enough to sustain the business is another question.
There was a time, in an age long gone, when a cursory web search was great for product research too.