New Model: Nano Banana 2 (Google Gemini 3.1 Flash)

Posted: February 28, 2026
Category: Changelog, Image Generation
Tags: Nano Banana 2, Gemini 3.1 Flash, image generation, new model, changelog

What’s New

We’ve added Nano Banana 2 to the image generation lineup in Banana Flow. Powered by Google’s Gemini 3.1 Flash, this model combines fast generation speed with pro-level image quality.

Key Features

• Text-to-image and image-to-image editing support
• Flexible aspect ratios including ultra-wide formats: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 4:1, 1:4, 8:1, 21:9, and auto
• Three quality tiers: Standard (1K), High (2K), and Ultra (4K) resolution
• Output formats: PNG and JPEG

Pricing

Nano Banana 2 costs 8 credits per generation. Free tier users get 20 credits per month.

How to Use

1. Open any board in Banana Flow
2. Add an Output Node to your flow
3. Select Nano Banana 2 from the model dropdown
4. Connect a prompt node (and optionally an image node for image-to-image editing)
5. Choose your aspect ratio, quality, and output format
6. Hit Generate