When it comes to Information Retrieval, you can get anything between links to existing documents or generated content based on those processed information. I agree that the second one is really powerfuly and just amazing and seemilngly useful. But the fact that it can also be wrong in more cases and I won't know keep being reminded to my using it for things I'm not good at and they just don't work s they should.

I just wish the business models could justify a confidence level being attached to the response.