Nano Banana Pro aka gemini-3-pro-image-preview is the best available image generation model

Willison has an initial take on Gemini 3 Pro's "Nano Banana" image generation. I've now used this as well for a few tests as well as a recent POAP I made. I've done a lot of image generation with ChatGPT and DALL-E, and so far Nano Banana definitely does a better job. The larger sizes are a nice addition, and it generally has gotten the images better and seems to show a better understanding of the prompts. I have seen it give me the same image back when I ask for edits and I've had to ask it to try again. Like other AI image generators I find it gets confused after several iterations and I need to start a new conversation with a fresh prompt. Also see Google suggestions on using Nano Banana.