By skyforbes 
Left photos are from Gemini. Right from ChatGPT. 4th photo is the reference picture used.
I'm honestly blown away by Nano Banana fidelity to the reference image. It's like it recognized her face and used more references from across the web, even her smile on the 2nd picture was accurate, which is not shown in the reference picture. I felt as if I was the professional photographer of the woman (Nayeon) with these pictures. ChatGPT generate great images, but Gemini recognizes the face structure in a way that I haven't seen in another AI yet.
Prompts: https://pastebin.com/TACLcRqJ