If you mostly use chatbots and you are trying to keep up with AI tools without wasting time, this is the part that matters: Nano Banana 2 Lite is not the weak tier. It is the default layer. Lite is not a downgrade. It is the floor of a content pipeline, meaning the version you start with for repeat jobs like covers, cards, and thumbnails. [C002]
The cost is not just money. If you read Lite as backup-only, you test the wrong tier first and spend time, budget, and attention in the wrong place. Google lists about $0.0336 per image for 2 Lite versus about $0.067 for NB2. On batch pricing, 2 Lite is about $0.0168 per image. That changes the math fast when you make a lot of small assets.
The stronger signal is the migration advice. Google's public docs say older Nano Banana users should move to 2 Lite for faster speed, lower price, and better quality. Companies do not usually push users toward the Lite tier unless they want that tier to be the everyday default.
The way to judge an update is not by how many features it adds. It is whether it changes your next move. My read, based on Google's docs and pricing page only, not a hands-on runtime test: start with 2 Lite first for high-frequency image work, and move up only if the job truly needs more.