Have you guys tried Stitch with Google?

Have you guys tried Stitch with Google? It’s amazing. I’m really curious to know how it works in the backend. Does anyone have any idea? I noticed that the designs are quite good even though it uses Gemini. When I tried the same thing by cloning blot.new locally and testing it, there was a huge difference. I know it’s a coding model, but still how is Google Stitch able to achieve this? Are they generating text or images behind the scenes? How are they so accurate and good?