Building with Gemini 2.5 Flash Image in Google AI Studio

Google for DevelopersAbout 5 min readAug 27, 2025Watch original
THE SUMMARYAI-generated

Key Concepts:

  • Gemini 2.5 Flash Image (Nano Banana): State-of-the-art image generation and editing model.
  • AI Studio: Platform for building and sharing AI-powered applications.
  • Vibe Coding: Rapid application development through prompting and iteration with AI models.
  • Applets: Shareable and portable AI applications built on AI Studio.
  • Model Picker: New UI element in AI Studio for easily selecting and exploring available models.
  • Timeline: Feature in AI Studio for navigating long chat conversations with AI models.
  • Flashlight: A smaller, faster version of Gemini 2.5 used for generating suggestions in AI Studio.

1. Nano Banana Launch and AI Studio Apps

  • The YouTube video celebrates the launch of Gemini 2.5 Flash Image, also known as Nano Banana, a new image generation and editing model.
  • The AI Studio team showcases several applications built using Nano Banana, highlighting its capabilities.
  • The focus is on "vibe coding," a rapid development approach using AI to generate and refine applications through iterative prompting.

2. Past Forward and Future Forward Apps

  • Past Forward: An app that transforms a user's image to depict them in different historical decades (50s, 70s, etc.).
    • Demonstrates the model's character consistency and ability to extrapolate images based on prompts.
    • The app uses prompts like "reimagine this person in the style of that decade," including details like clothing, hairstyle, and photo quality.
    • The app was created through vibe coding, starting with a basic prompt and refining details iteratively.
  • Future Forward: A remix of the Past Forward app, modified to envision the user in future decades (2030, 2040, 2050, etc.).
    • The model renames the app and adapts the image generation to reflect futuristic styles.
    • The model imagines flying cars and Bluetooth headsets making a comeback.

3. Home Canvas App: Product Placement and Editing

  • The Home Canvas app allows users to upload a product image and a scene image, then places the product into the scene.
    • Example: Placing a pillow on a couch or adding a cat to a living room scene.
    • The model adjusts the product's perspective and lighting to blend seamlessly into the scene.
    • The model can add shadows based on the light coming in through the window.

4. Ad Visualizer App: Contextual Advertising

  • The Ad Visualizer app allows users to upload a product image and visualize it in different advertising contexts (city billboard, London bus stop, New York subway ad, etc.).
    • The model can render text effectively, adding promotional messages like "Amar's book is now 100% off."
    • The app uses emojis instead of icons for a clean aesthetic.
    • The model can generate different styles, such as a 70s newspaper ad.

5. AI-Powered Photo Editing App

  • This app allows users to edit details of a photo using AI, such as adding a mustache, top hat, or monicle.
    • Demonstrates the speed and ease of iteration with the Flash model.
    • The app also includes filters to apply different styles, such as anime or cartoon.
    • The retouching capabilities blend the added elements naturally into the image.

6. Remixing and Iteration in AI Studio

  • The video emphasizes the ease of remixing and iterating on apps within AI Studio.
  • Users can download the code and use it outside of AI Studio.
  • AI Studio provides suggestions for improving the app, powered by 2.5 Flash Light.
  • The UI has been updated to focus on the preview for app generation and provide more space for the code assistant.
  • Users can flip back and forth between the code and the preview.

7. UI Updates in AI Studio

  • New model picker for easily finding and exploring models.
    • Provides documentation and details about each model.
    • Allows filtering by modality (image generation, etc.).
  • Timeline feature for navigating long chat conversations.
    • Allows jumping to specific points in the conversation using up and down arrows.
  • Consistency in the chat UI and build experience.

8. Sharing and Deployment

  • Applets can be easily shared with the world via a publish option.
  • Users can create a new repository from AI Studio and commit changes to GitHub.
  • Applets can be deployed to Cloud Run with a single click.
  • Apps work across mobile devices.

9. Model Capabilities and Limitations (Nicole from Google Tind)

  • Gemini 2.5 Flash improves upon 2.0 Flash with better visual quality, instruction following, and consistency.
  • The model excels at character consistency and reimagining spaces.
  • Known limitations include text rendering and stylization.
  • Future goals include improving factuality and generating accurate infographics.
  • The name "Nano Banana" was coined by a PM at 2:30 in the morning.

10. Creative Labs Filters App

  • This app, created by Creative Labs, allows users to apply various filters to their photos, such as big beard, 8-bit, comic book, and old age.
  • The app reveals the prompts used for each filter, encouraging users to remix and customize them.

11. Collage App

  • An app that generates 15 variations of an image and puts them all into a single UI.
  • Demonstrates the model's ability to create distinct visual styles.

12. Virtual Try-On App

  • Allows users to upload a photo of themselves and a clothing item to visualize how they would look wearing it.
  • The model can combine multiple images, such as adding a top hat and a sweatshirt.

13. Conclusion

  • The launch of Gemini 2.5 Flash Image (Nano Banana) and the AI Studio platform provide powerful tools for rapid AI application development.
  • The video showcases the ease of vibe coding, remixing, and sharing apps, empowering users to create innovative AI experiences.
  • The model's capabilities include image generation, editing, product placement, and contextual advertising.
  • Future improvements will focus on text rendering, stylization, and factuality.

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