It failed my first test which concerned Upside magazine. All of these deep research versions have failed to immediately surface the most famous and controversial article from that magazine, "The Pussification of Silicon Valley." When hinted, Perplexity did a fantastic job of correcting itself, the others struggled terribly. I shouldn't have to hint though, as that requires domain knowledge that the asker of a query might be lacking.

We're mere months into these things, though. These are all version 1.0. The sheer speed of progress is absolutely wild. Has there ever been a comparable increase in the ability of another technology on the scale of what we're seeing with LLMs?