Question 1

What is Nano Banana?

Accepted Answer

Nano Banana is the nickname for Google Gemini 2.5 Flash Image, a powerful AI model for generating and editing images from text descriptions. It's part of Google's Gemini family of AI models.

Question 2

How do I get started with Nano Banana?

Accepted Answer

First, get your free API key from Google AI Studio (ai.google.dev). Then check out our Getting Started tutorial which walks you through your first image generation step-by-step.

Question 3

Is Nano Banana free to use?

Accepted Answer

Google offers a free tier with 60 requests per minute. Each image generation costs approximately $0.039. The free tier is generous for learning and small projects.

Question 4

Do I need coding experience?

Accepted Answer

No! You can use our Playground to generate images without any coding. For developers, we provide tutorials for Node.js, Python, and other languages.

Question 5

Which programming languages are supported?

Accepted Answer

The Google Generative AI SDK officially supports JavaScript/Node.js and Python. You can also use the REST API directly from any language that can make HTTP requests.

Question 6

Can I use this in my commercial project?

Accepted Answer

Yes, you can use Nano Banana in commercial projects. Check Google's terms of service for specific usage guidelines and pricing for production use.

Question 7

How do I handle API rate limits?

Accepted Answer

Implement request queuing, add delays between requests, and consider caching results. Our API Integration tutorial covers rate limiting strategies in detail.

Question 8

Where should I store my API key?

Accepted Answer

Never expose your API key in client-side code or commit it to public repositories. Use environment variables and keep all API calls on your backend server.

Question 9

What makes a good prompt?

Accepted Answer

Good prompts are specific, descriptive, and include details about style, lighting, composition, and technical aspects. Check our Advanced Prompt Engineering tutorial for comprehensive guidance.

Question 10

How long does image generation take?

Accepted Answer

Most images generate in 2-5 seconds, depending on complexity and API load. Our Playground shows real-time generation status.

Question 11

Can I generate multiple images at once?

Accepted Answer

Yes, you can specify numberOfImages parameter. However, each image counts toward your quota and costs separately.

Question 12

What aspect ratios are supported?

Accepted Answer

Common ratios include 1:1 (square), 16:9 (landscape), 9:16 (portrait), and 4:3 (standard photo). Specify your preference in the request parameters.

Question 13

Why aren't my images turning out as expected?

Accepted Answer

Try being more specific in your prompt, add style references, specify lighting conditions, and use technical photography terms. Our examples library shows successful prompts you can learn from.

Question 14

Can I edit existing images?

Accepted Answer

Yes! Nano Banana supports image editing with natural language instructions. You can make targeted modifications to existing images.

Question 15

How do I maintain character consistency?

Accepted Answer

Nano Banana has built-in character consistency features. Use detailed character descriptions and reference the same characteristics across multiple generations.

Question 16

Are the generated images watermarked?

Accepted Answer

All images include an invisible SynthID watermark for authenticity tracking. This doesn't affect visual quality but helps identify AI-generated content.

Question 17

What image formats are returned?

Accepted Answer

Images are typically returned as base64-encoded data or URLs, depending on your configuration. You can save them in standard formats like PNG or JPEG.

Question 18

Can I use this offline?

Accepted Answer

No, Nano Banana requires an internet connection as it's a cloud-based API service. All processing happens on Google's servers.

Question 19

How do I handle errors?

Accepted Answer

Implement try-catch blocks, check response status codes, and handle common errors like quota exceeded, invalid prompts, and network timeouts. See our API Integration guide for examples.

Question 20

Is there a size limit for generated images?

Accepted Answer

The model generates images at specific resolutions based on your aspect ratio choice. The exact resolution depends on the model version and your parameters.

Question 21

How is pricing calculated?

Accepted Answer

Images are priced per generation, approximately $0.039 per image based on output tokens (1290 tokens per image). Check Google Cloud Console for current pricing.

Question 22

What are the rate limits?

Accepted Answer

Free tier: 60 requests per minute. Paid tiers offer higher limits. Monitor your usage in Google Cloud Console.

Question 23

Can I increase my quota?

Accepted Answer

Yes, upgrade to a paid tier in Google Cloud Console for higher quotas and rate limits. Enterprise options are also available.

Question 24

Should I cache generated images?

Accepted Answer

Yes! Cache identical prompts to save costs and improve response time. Our tutorials show how to implement caching effectively.

Question 25

How can I optimize costs?

Accepted Answer

Cache results, batch similar requests, use specific prompts to avoid regeneration, and implement client-side rate limiting to prevent accidental overuse.

Question 26

What are content safety considerations?

Accepted Answer

The API has built-in safety filters. Respect usage policies, don't generate harmful content, and implement your own moderation for user-generated prompts.

Frequently Asked Questions