It's sort of amazing that Grok's image model beats Nano Banana on nearly every one of the metrics they chose to highlight.
Image editing: banana 1308, grok 1329
Image generation: banana 1251, grok 1174 (grok loses, but is close)
Cost: banana 3.4 cents, grok 2 cents
Grok is a good image model, so it isn’t totally surprising, but it’s weird that they’d pick a set of metrics where they’re not the clear winner.