Claude does it quite a bit when you’re triggering the search tool functions.

It’s fine, and what you would expect for certain prompts, except that the synthesized results often come back communicating more authority than they deserve.

It was funny for me, when I asked it about something specific exotic - and it gave me a confident answer. But checking the sources I discovered it was from my own inquiries on a forum thread about it from the last time I unsuccesfully tried this (before the agents came) And so I knew, that any authorative tone was undeserved.

On the other hand, Claude later nailed this project, where I as a human said before, no, too much extra work.