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Google Chrome Built-in AI Challenge 2025

Date
September 16, 2025 – November 1, 2025
Where
Online
Mode
online
Entry
Free
#extension#hackathon#client-side#2025#devpost#web#gemini nano#global#chrome#ai
Google Chrome Built-in AI Challenge 2025 posterFREE
Starts
Tue, 16 Sept
Entry
Free
Venue
Online
Eligibility
College students
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About this event

Free entry

Google Chrome Built-in AI Challenge 2025 🚀

🌟 About the Challenge

The Google Chrome Built-in AI Challenge 2025 invites developers to create new web applications or Chrome Extensions that harness Chrome’s built-in AI APIs, including the powerful Gemini Nano model. Build privacy-first, client-side AI features such as dynamic prompts, grammar correction, summarization, translation, content writing, and rewriting—all working seamlessly offline for your users.

This challenge emphasizes creative freedom, network-resilient user experiences, and delivers advanced AI without server costs or data leaving the user's device.


🛠️ What to Build

- Develop a new web app or Chrome Extension utilizing one or more of the following APIs:

- Prompt API (with multimodal image/audio support)

- Proofreader API

- Summarizer API

- Translator API

- Writer API

- Rewriter API

- You can also combine these with Firebase AI Logic or the Gemini Developer API for hybrid AI strategies.


📝 Submission Requirements

- Live demo accessible via URL or hosted app

- Text description explaining the features, APIs used, and problem solved

- A video demo (up to 3 minutes) publicly accessible on YouTube, Vimeo, or Facebook

- Public open-source code repository with necessary instructions and open license

- Application must be original for 2025, not reused from previous hackathons


🏆 Prizes

- Most Helpful (Chrome Extension & Web Application): $14,000 USD + promotion + virtual coffee chat

- Best Multimodal AI Application (Chrome Extension & Web Application): $9,000 USD + promotion + virtual coffee chat

- Best Hybrid AI Application (Chrome Extension & Web Application): $9,000 USD + promotion + virtual coffee chat

- Honorable Mention: $1,000 USD + promotion + virtual coffee chat

- Most Valuable Feedback Prize


👩‍⚖️ Judging Criteria

- Functionality: Scalability, effective use of Chrome AI APIs, audience reach

- Purpose: Meaningful improvement of user tasks or unlocking new web capabilities

- Content: Creativity and visual quality

- User Experience: Ease of use and execution

- Technological Execution: Showcase of Chrome AI model APIs in the project


🤝 Judges

Experienced professionals from Google Chrome’s product, engineering, and developer relations teams will evaluate submissions, ensuring quality and innovation.


Build the future of client-side AI today! Join the Google Chrome Built-in AI Challenge 2025 and give the web a brain boost and creative spark.

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