The speaker liked Grok 4 because it combined capabilities resembling those of Opus and Sonnet.

“with Grok4 as well but I think the idea was I think Grok4 actually has some of the really cool agentic capabilities so kind of like I think I really love Claude Sonet for example because of the same and Grok4 had like some of a mix of Opus and Sonet which I really like so kind of like wanted to use a CLI to use that on my code base so kind of just developed it overnight not”