Minerva

About

Minerva is an AI-powered Chrome extension and open-source project designed to help users to summarize, translate, chat, generate, and listen to written content directly in their browser.

It combines Google GenAI APIs with Chrome’s built-in experimental AI APIs to make online browsing and content creation faster and more accessible.

Core Features

- Summarize (TL;DR)
    - Text (Summarizer API)
    - PDFs or Images _(Gemini 2.5 Flash)_
    - YouTube _videos (Gemini 2.5 Flash)_
    - Selected webpages or webpages areas _(Chrome’s Summarizer API)_
        - Listen — Text-to-speech with 30 voice options
        - “Explain for kids” simplification (Rewriter API)

- Chat & Q&A
    - Ask follow-up questions about any text or webpage (Prompt API)

- Create
    - Write text, giving tone and context (via Writer API)
    - Images _(Imagen 4.0 Fast)_
    - Translations (Translator API)
    - Speech _(Gemini 2.5 Flash TTS)_

Requirements

To access all the features of the extension, you will need an up-to-date version
of Chrome and the following flags enabled:

- Prompt API for Gemini Nano: chrome://flags/#prompt-api-for-gemini-nano
- Summarization API for Gemini Nano: chrome://flags/#summarization-api-for-gemini-nano
- Writer API for Gemini Nano: chrome://flags/#writer-api-for-gemini-nano
- Rewriter API for Gemini Nano: chrome://flags/#rewriter-api-for-gemini-nano
- Experimental translation API: chrome://flags/#translation-api

You will need to enable at least `Summarization API for Gemini Nano` for the extension to work.

Onboarding

When no model is downloaded on your Chrome yet, the extension will first have
to download it. You will be presented with a progress bar. It seems to gets a
bit stuck around the end, but please be patient, it'll take just a few more
minutes.