> Which dimensions do you see Google lagging on? They seem broadly comparable on the usual leaderboard (https://lmarena.ai/leaderboard) and anecdotally I can't tell the difference in quality.

Gemini holds indeed the top spot, but I feel you framed your response quite well: they are all broadly comparable. The difference in the synthetic benchmark from the top spot and the 20th spot was something like 57 points on a scale of 0-1500