Google

Nano Banana 2

Nano Banana 2 is Google's Gemini 3.1 Flash Image model, run here at 1K resolution through OpenRouter. It takes a prompt and up to fourteen reference photos, which makes it the pick in the Nano Banana family when a scene has to match many inputs. One image costs 105 credits, plus 1 credit for each photo you attach.

Nano Banana 2 is made by Google. Prompt Generator is independent and not affiliated with Google; we run the model through OpenRouter.

105 credits

Model: Nano Banana 2 · Google
Cost: 105 credits

Your results appear here when you press Generate.

Specs

Vendor: Google
Type: Text to image
Price: 105 credits per image
Aspect ratios: 1:1, 4:3, 3:4, 16:9, 9:16
Reference images: up to 14
Input surcharge: 1 credit per reference image
Served via: OpenRouter

Best for

Scenes built from many reference photos
Product sets that must match a catalogue
Detail beyond the original Nano Banana

Tips

Name each reference in the prompt by its role, for example 'the jacket from photo 2'.
Fourteen references cost 14 credits on top of the image price, so add only the ones that change the result.

Tools that use Nano Banana 2

AI Photoshoot

Photo

Upload one to four photos of yourself, choose a concept, a framing and a grade, and get up to four matching shots per run, with your face kept from the photos.

Image to Image

Photo

Upload a picture and describe what to make from it. Keep its layout, its subject or only its style, and get a new image on Nano Banana, FLUX.2 or Seedream.

AI Baby Generator

Photo

Add one photo of each parent, pick an age, and see a portrait of a child who mixes your features: eyes, hair, skin tone and face shape. A playful guess, not science.

Photo Enhancer

Photo

Fix a dark, flat, noisy or slightly soft photo in one step. Pick what to improve, and the picture keeps its people, framing and content.

AI Age Predictor

Photo

Choose an age between 10 and 80 and see your selfie made older or younger to match. Skin, hair and face shape change; your identity, pose and background stay.

AI Headshot Generator

Photo

Upload one to three clear photos of yourself, pick an outfit and a backdrop, and get a head-and-shoulders portrait in studio light, ready for your LinkedIn profile, CV or company site.

Photo Restorer

Photo

Upload a scan of an old print. The model mends scratches, creases and stains, brings back faded contrast and can add color, while faces stay as they were.

YouTube Thumbnail Generator

Image

Write the video title, a short line of text and the expression, add your photo if you want to be in it, and get a 16:9 thumbnail with lettering big enough to read on a phone.

Image Colorizer

Photo

Turn a black and white or sepia photo into color. The model picks believable tones for skin, clothes and sky, and you can name the colors you already know.

Questions

1How many credits does Nano Banana 2 use?

105 credits per image, one image per run. Each reference photo adds 1 credit. If a run fails, the credits go back to your balance; runs stopped by the model's safety filter are refunded up to 10 times a day.

2What can I give Nano Banana 2 besides a prompt?

Up to 14 reference photos (PNG, JPEG or WebP, up to 12 MB each). Leave them out and pick Create image to work from the prompt alone, or add them and pick Edit photo. Output sizes: 1:1, 4:3, 3:4, 16:9 or 9:16.

3Can I use what I make with Nano Banana 2 in paid work?

Yes, when you made it on a paid plan or after buying credits. Results made only with the free sign-up credits are for personal, non-commercial use. Anything you upload must be yours to use, and people shown in it must have agreed.

Compare with all models.