Use Nano Banana 2 when precision matters more than speed
The difference comes down to stage of work as much as output quality. Nano Banana 2 Lite fits rough ads, thumbnails, internal briefs, presentation concepts, and first-pass product visuals where speed, cost, and variation matter. Nano Banana 2 is the better pick for closer detail review, cleaner presentation, or fewer experimental branches. Do not treat either model as final approval. Claims, exact brand assets, small lettering, and product details still need a human pass.