What is Nano Banana?

Nano Banana is a free web-based AI image generator that creates images from text descriptions and edits existing images using artificial intelligence. It is powered by Google Gemini 3 models and hosted on Vercel.

Features

• Text-to-image generation: Describe what you want and get an AI-generated image
• Image editing: Upload up to 2 images and describe changes you want
• 10 aspect ratios: 1:1, 9:16, 16:9, 21:9, 4:3, 3:4, 3:2, 2:3, 5:4, 4:5
• NB2 mode: Gemini 3.1 Flash with thinking levels (Minimal/High) and up to 4K resolution
• Pro mode: Gemini 3 Pro for highest quality output
• Classic mode: Gemini 2.5 Flash for fastest generation
• Google Search grounding for real-time web context in NB2 mode
• No watermarks on generated images
• Free to try without account

How it works

Enter a text prompt describing the image you want. Optionally upload reference images. Select your preferred aspect ratio and generation model (NB2, Pro, or Classic). Configure thinking level and resolution for NB2. Click Run to generate. Download, copy, or continue editing the result.

Technology

Nano Banana uses Google Gemini 3 image generation models accessed through Vercel AI Gateway. NB2 uses Gemini 3.1 Flash Image Preview with configurable thinking and resolution up to 4K. Pro uses Gemini 3 Pro Image for best quality. Classic uses Gemini 2.5 Flash Image for speed.