Nano Banana 2.1 is Google's updated image generation and editing model released in October 2026. It works as an API endpoint on reAPI, allowing developers to generate high-resolution visuals from text prompts or reference files. This model addresses common AI image issues like garbled text and inconsistent subjects across different frames.
Designers and developers use this tool to build automated workflows for product catalogs, storyboards, and web banners. It handles complex layouts better than its predecessor, especially when you need specific words to appear clearly on signs or infographics. You can ground the results in Google Search to improve the accuracy of the generated details.
Key Features
- Output resolutions at 1K, 2K, and 4K for high-fidelity prints and web headers
- Support for 14 different aspect ratios including ultra-wide 8:1 banners and 1:8 vertical strips
- Reference image input allows up to 14 files to maintain character or product consistency
- Text rendering engine designed for infographics, posters, and diagrams with labels
- Google Search grounding to incorporate real-world visual data into the generation process
- Mask-based editing tools for modifying specific parts of an existing image
- Single flat price per image regardless of the selected resolution or aspect ratio
- Multi-image fusion capabilities to blend elements from different sources into one shot
How to Use
- Sign up for a reAPI account and generate a personal API key from the developer dashboard
- Test your prompts in the web-based playground to see how the model handles specific text or aspect ratios
- Upload your reference images if you need to maintain consistency for a specific object or person
- Send a POST request to the image generation endpoint with the model ID set to nano-banana-2.1
- Poll the task ID provided in the response until the generation status changes to completed
- Download the final JPEG output from the provided URL once the task is finished
Use Cases
- Creating a series of product shots where the same physical item appears in different lifestyle settings
- Designing web banners for responsive sites using the 8:1 aspect ratio to avoid tiling artifacts
- Generating educational infographics where text labels and step-by-step diagrams must be legible
- Building a storyboard for a video project using consistent characters across multiple scene descriptions
- Updating existing images by applying masks to change specific colors or textures without altering the whole composition
Pricing
Generations cost $0.03 per image, which equals 30 credits on the reAPI platform. You only pay for tasks that complete successfully, and the price remains the same for 1K, 2K, or 4K resolutions.
FAQ
What is Nano Banana 2.1?
It is a Google-developed image model that creates and edits visuals with a focus on text clarity and subject consistency.
Is Nano Banana 2.1 free?
No, it operates on a credit-based system where each successful image costs approximately $0.03 USD.
Does it support high resolution?
Yes, you can generate images at 1K, 2K, or 4K resolutions through the API for the same flat price.
Can I use my own photos as references?
Yes, you can upload up to 14 reference images to guide the model on specific subjects, characters, or styles.
How does it handle text in images?
It is specifically optimized for infographics and posters, though you should put exact words in quotes for best results.
What happens if a generation fails?
Any task that fails to complete is not charged, and the reserved credits are automatically refunded to your balance.
