Nano Banana 2 Fast 4K Image Generator
Nano Banana 2 is Google's Gemini 3.1 Flash Image — a high-speed image generation model that delivers up to 4K output, renders text across multiple languages, and supports 15 aspect ratios including ultra-wide panoramic formats. No install or API key required.
Drag or click to upload JPG, PNG, or WEBP images
What is Nano Banana 2?
Nano Banana 2 is the community nickname for Gemini 3.1 Flash Image, Google's second-generation fast image model released in February 2026. It builds on the original Nano Banana (Gemini 2.5 Flash Image) with improved text rendering, higher maximum resolution, and an expanded set of aspect ratios — while preserving the Flash-tier speed that makes it practical for high-volume workflows.
Compared to Nano Banana Pro (Gemini 3 Pro Image), Nano Banana 2 is faster and lower-cost per image, making it the better choice for rapid iteration, draft generation, and production pipelines where volume matters. For maximum compositional quality and complex prompts, Nano Banana Pro remains the stronger option.
Nano Banana 2 Key Features
Gemini 3.1 Flash Image improves on the original Nano Banana across speed, resolution, text accuracy, and aspect ratio support.
Flash-Speed Generation
Built on Gemini 3.1 Flash Image, Nano Banana 2 prioritizes throughput over maximum compositional depth — making it the fastest model in the Nano Banana family for iterating on ideas and producing at scale.
~90% Text Rendering Accuracy
Nano Banana 2 reproduces labels, logos, multilingual scripts (Chinese, Japanese, Arabic, and more), and full infographic layouts directly inside images at approximately 90% accuracy — strong enough for most marketing and social content.
Character Consistency for 5 People
The model tracks up to 5 characters across multiple generations, preserving facial features, clothing, and style. Use it to storyboard comics, build visual series, or create campaign assets featuring the same cast.
Up to 14 Reference Images
Upload up to 14 source images to blend scenes, swap styles, or transplant subjects into new environments. The model merges all inputs into one output while following your text prompt.
Web-Grounded Generation
Nano Banana 2 can draw on real-time web information when generating images, making it more accurate for current events, recent product releases, and time-sensitive visual content.
15 Aspect Ratios Including Panoramic
Choose from 15 ratios — including extreme formats like 4:1, 1:4, 8:1, and 1:8 — alongside the standard set. Ultra-wide and ultra-tall formats are unique to Nano Banana 2 and useful for banners, strips, and vertical displays.
How to Use Nano Banana 2 in 4 Steps
From prompt to download in seconds — choose 0.5K for quick drafts or 4K for production-ready output.
Select Nano Banana 2
The model selector on this page already defaults to Nano Banana 2 — no setup or API key required.
Upload Reference Images (Optional)
Add up to 14 images to edit or blend. Leave this empty to generate a new image from text alone.
Set Aspect Ratio and Resolution
Pick one of 15 aspect ratios and choose your output resolution: 0.5K for quick drafts, 1K for standard use, 2K for quality delivery, or 4K for large-format output.
Generate and Download
Write your prompt and click Generate. Results appear on the right — download, edit, or send to Seedance 2.0 to animate.
When to Choose Nano Banana 2
- High-volume content production — generate many variations quickly without waiting on a slower Pro-tier model.
- Social and marketing assets with text — ~90% text rendering accuracy covers most tagline, headline, and caption use cases.
- Panoramic banners and strips — unique 4:1, 8:1 and mirrored portrait formats that no other model in this family supports.
- Character-consistent series — keep the same cast looking identical across a storyboard or campaign series.
- Animate the result — generate a key frame here, then bring it to life with Seedance 2.0.
Nano Banana 2 FAQ
Common questions about Gemini 3.1 Flash Image and how it works on ImageGen 2.
What is Nano Banana 2?
What resolutions does Nano Banana 2 support?
Does Nano Banana 2 support panoramic and ultra-tall aspect ratios?
How is Nano Banana 2 different from Nano Banana and Nano Banana Pro?
Do Nano Banana 2 images contain a watermark?
Last updated 2026-06-17. Nano Banana 2, Gemini, and SynthID are trademarks of Google LLC. ImageGen 2 is an independent platform and is not affiliated with or endorsed by Google.