Overview
Nano Banana is a series of AI image generation and editing models launched by Google. It quickly became popular after its initial release in September 2025, and as of May 2026, it has generated over **50 billion** images, making it Google's most important product in the consumer-grade AI image field.
**Nano Banana Pro** (based on Gemini 3 Pro Image, released on November 20, 2025) supports **4K ultra-high definition**, **advanced text rendering**, **multi-image fusion** (up to 8 images), **thinking mode**, and **web search grounding**, capable of transforming recipes, data, real-time weather, and more into well-founded infographics.
**Nano Banana 2 Lite**: Currently Google's fastest and most cost-effective image generation model, generating images **within 4 seconds**, costing approximately $0.034 (about 0.23 yuan) per 1000 images, with significantly reduced latency compared to the previous generation. It is suitable for scenarios requiring rapid iterative modifications or batch generation of large volumes of images in a short time. Google recommends that users of the original Nano Banana migrate to this model. It can be used via the Gemini App, Gemini API, and Google AI Studio.
Key Features
- 4K Ultra-High Definition Generation: Nano Banana Pro supports native 4K output, achieving professional-grade image quality.
- 2 Lite: 4-Second Image Generation / Ultra-Low Cost: Currently Google's fastest and most cost-effective image generation model, costing only about $0.034 per 1000 images, suitable for high-frequency iteration scenarios.
- Advanced Text Rendering: Clear and accurate text in posters, covers, and infographics, with multilingual support.
- Multi-Image Fusion: The Pro version can simultaneously fuse up to 8 reference images to generate coherent and consistent composite works.
- Thinking Mode: The Pro version leverages the reasoning capabilities of Gemini 3 Pro to understand complex instructions and adhere to factual constraints.
- Web Search Grounding: Generates images based on real-time information, such as the latest weather infographics or daily data visualizations.
- Image Editing: Perform language-based editing on existing images, including object replacement, style adjustments, and background modifications.
- Ease of Use and Speed: The Flash series responds quickly, suitable for daily creation and rapid iteration.
- Flexible API Integration: Flexibly call via Gemini API / Vertex AI / third-party proxies (e.g., 0.09 yuan per image).
Use Cases
- Cover images and supporting graphics for social media content on platforms like WeChat Official Accounts and Xiaohongshu.
- Rapid generation of e-commerce product images and marketing posters.
- Images for PPTs, presentations, and teaching courseware.
- Infographics and data visualizations (leveraging web search grounding capabilities).
- Batch editing of existing images, object replacement, and background changes.
- Quick prototyping for illustrations and concept designs.
Pros
- The world's most widely used AI image product (50 billion+ images).
- The Pro version is based on Gemini 3 Pro, with strong understanding of complex Chinese instructions.
- Comprehensive capabilities: 4K high definition + text rendering + multi-image fusion.
- Generous free tier; new users receive tokens across multiple platforms upon registration.
- Affordable API pricing (approximately ¥0.09/image), accessible for small and medium teams.
- Web search grounding enables image generation based on real-time information.
Pricing
Consumers can try it for free within the Gemini App (with daily usage limits). API usage via Gemini API / Vertex AI is billed per image: Nano Banana Pro costs approximately $0.039 per image, while the Nano Banana Flash series is cheaper. Third-party API proxies offer even lower prices, around ¥0.09 per 4K image. New users enjoy free token quotas in Google AI Studio.
Summary
Nano Banana is the most influential AI image product from 2025 to 2026, thanks to its ease of use, output quality, and Google's
Version History
- Google Earth 集成 Nano Banana 2 图像生成 (2026-07-30): Google Earth web version has launched an image generation feature based on Nano Banana 2, allowing users to combine satellite and 3D imagery with text prompts to reimagine any location worldwide (such as a city's appearance a century ago or a new community sports field). This feature is now available to all users.