What is Nano Banana 2?
Nano Banana 2 is Google's latest AI image generation and editing model, powered by Gemini 3.1 Flash Image. It supports 512px–4K resolution, real-time web search, 14 reference images, and 14 unique aspect ratios — making it the most versatile AI image model available today.
Try Nano Banana 2 Free →Technical Background
Nano Banana 2 was announced by Google on February 26, 2026 as part of the Gemini model family. Unlike its predecessor (Nano Banana Pro, based on Gemini 3 Pro), NB2 uses the Gemini 3.1 Flash architecture — optimized for speed without sacrificing output quality.
Core Capabilities
📐 Resolution: 512px to 4K
Nano Banana 2 supports four resolution tiers, including a 512px quick-preview mode exclusive to NB2 that's not available in any other Gemini image model.
🌐 Web-Grounded Generation
Nano Banana 2 can access real-time web information during image generation via Google Search integration. This means it can reference current events, real brand logos, trending styles, and up-to-date visual concepts that earlier models would hallucinate or miss. Activated via tools: [{ googleSearch: {} }] in the API.
🖼️ 14 Reference Images
For image editing and multi-image blending tasks, NB2 accepts up to 14 reference images simultaneously. This enables complex creative workflows: style transfer from multiple sources, product photography with scene references, and character-consistent storytelling across many frames.
👤 Character Consistency (Up to 4)
NB2 can maintain consistent character appearance across up to 4 characters in a single generation session. This is critical for e-commerce product models, brand mascots, comic/manga creation, and any workflow that requires recognizable faces across multiple outputs.
📏 14 Aspect Ratios
Beyond the standard ratios, Nano Banana 2 introduces exclusive ultra-wide and ultra-tall formats ideal for panoramic shots, social media stories, banner ads, and cinematic compositions.
✦ NB2 exclusive ratios — not available in other Gemini image models
🎨 Generation Modes
Text to Image
Generate images from text descriptions. Supports all resolutions, aspect ratios, and web search.
Image Editing
Edit existing images with natural language instructions. Upload a photo and describe changes.
Multi-Image Blend
Combine up to 14 reference images to create composites, style transfers, and creative mashups.
Version Evolution
Nano Banana (Original)
First generation. Basic text-to-image with Gemini 2. Limited resolution, no web search.
Nano Banana Pro
Powered by Gemini 3 Pro. Higher quality, 1K-4K resolution, image editing, but slower and more expensive.
Nano Banana 2 ← Current
Gemini 3.1 Flash Image. 2x faster, 512px-4K, web search, 14 references, 14 aspect ratios, character consistency. Best balance of speed, quality, and cost.
Nano Banana 2 vs Pro — At a Glance
| Nano Banana 2 | Nano Banana Pro | |
|---|---|---|
| Model | Gemini 3.1 Flash | Gemini 3 Pro |
| Speed | ⚡ ~2x faster | Standard |
| Cost | 3 credits | 12 credits |
| 512px Mode | ✅ | — |
| Web Search | ✅ | — |
| Reference Images | 14 | 14 |
Frequently Asked Questions
What is Nano Banana 2?▼
Nano Banana 2 is Google's latest AI image generation and editing model, released in February 2026. It's powered by Gemini 3.1 Flash Image and offers significant improvements in speed, quality, and capabilities over its predecessor Nano Banana Pro.
What model powers Nano Banana 2?▼
Nano Banana 2 is powered by Google's Gemini 3.1 Flash Image model. It's accessible via the Google Gemini API, Google AI Studio, and Vertex AI. NanoWow AI provides a user-friendly web interface on top of this technology.
What resolutions does Nano Banana 2 support?▼
Nano Banana 2 supports four resolution tiers: 512px (fastest, 3-8 seconds), 1K (default, 5-15 seconds), 2K (10-25 seconds), and 4K (highest quality, 15-40 seconds). The 512px option is exclusive to Nano Banana 2 and not available in other Gemini image models.
How many reference images can Nano Banana 2 use?▼
Nano Banana 2 supports up to 14 reference images simultaneously for image editing and multi-image blending tasks. This is a significant upgrade from earlier models which supported far fewer references.
Does Nano Banana 2 support web search?▼
Yes, Nano Banana 2 can access real-time web information during image generation using Google Search integration. This enables web-grounded generation — creating images that reference current events, real products, or up-to-date visual styles.
What aspect ratios does Nano Banana 2 support?▼
Nano Banana 2 supports 14 aspect ratios including standard ones (1:1, 3:2, 4:3, 16:9, 9:16) and exclusive ultra-wide/ultra-tall ratios (4:1, 8:1, 1:4, 1:8) not available in other models.
Is Nano Banana 2 available via API?▼
Yes. Nano Banana 2 is accessible through the Google Gemini API as the model "gemini-3.1-flash-image-preview". You can use it via the @google/genai SDK (JavaScript/TypeScript) or the google-genai Python package.
How is Nano Banana 2 different from Nano Banana Pro?▼
Nano Banana 2 is faster (2x speed improvement), cheaper (3 credits vs 12), supports 512px quick previews, has real-time web search, and supports 14 reference images (vs fewer in Pro). Pro still uses Gemini 3 Pro, which may produce slightly more detailed output for complex scenes. See our full comparison page for details.
Popular Templates
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