Google has announced the release of Nano Banana 2, officially designated as Gemini 3.1 Flash Image. This update follows the initial release of the Nano Banana model in August of last year and the subsequent Nano Banana Pro version in November.
The new model is positioned to combine the advanced visual generation and reasoning capabilities of the Pro tier with the faster processing speeds characteristic of Google’s Flash architecture. It is being integrated into a variety of consumer and developer products.
Key Features and Upgrades
Nano Banana 2 introduces several technical and functional updates aimed at improving both speed and output quality compared to its predecessor:
- Real-Time Knowledge Integration: The model accesses real-time information and web search images to accurately render specific subjects. This functionality is intended to support the creation of infographics, diagrams, and data visualizations.
- Text Rendering and Translation: The system can generate legible text within images, suitable for mockups or cards. It also supports in-image text translation and localization.
- Subject Consistency: The model allows users to maintain the visual consistency of up to five distinct characters and 14 objects within a single generation workflow, facilitating narrative building and storyboarding.
- Output Specifications: Nano Banana 2 supports a range of aspect ratios and output resolutions, scaling from 512px up to 4K.
- Visual Fidelity: Google notes that the new model provides improvements in lighting, texture richness, and overall detail while maintaining faster generation speeds.
- Prompt Adherence: The model’s instruction-following capabilities have been updated to better capture complex and nuanced user requests.
Product Integration and Availability
Google is offering Nano Banana 2 for rapid generation and search-grounded tasks, while Nano Banana Pro remains available for workflows requiring maximum high-fidelity factual accuracy. Nano Banana 2 is currently rolling out across the following platforms:
- Gemini App: Nano Banana 2 replaces Nano Banana Pro as the default across the Fast, Thinking, and Pro models. Google AI Pro and Ultra subscribers retain access to Nano Banana Pro for specialized tasks by using the “regenerate” option in the three-dot menu.
- Google Search: Integrated into AI Mode and Google Lens across the Google app, as well as mobile and desktop web browsers. It is available in 141 new countries and territories, supporting eight additional languages.
- Developer Tools (Preview): Available in preview through Google AI Studio, the Gemini API, Google Antigravity, and Google Cloud’s Vertex AI.
- Flow: Nano Banana 2 is now the default image generation model in Flow, accessible to users for zero credits.
- Google Ads: The model is currently available to power asset suggestions during campaign creation.
Content Provenance and Verification
Alongside the model release, Google provided an update on its generative media identification tools. Nano Banana 2 outputs utilize the company’s proprietary SynthID watermarking technology, interoperating with C2PA Content Credentials to provide context on how an image was created or modified.
According to Google, the SynthID verification feature in the Gemini app has been used over 20 million times since its launch in November. The company also announced plans to integrate C2PA verification directly into the Gemini app in the near future.