Definio: Multi-modal AI Copilot - Claude 4, GPT-4o, o1 Reasoning Model

Access all premium AI models in one convenient sidebar. Chat with Claude 4, GPT-4o, o1 and more.

Definio AI Copilot is a versatile Chrome extension that integrates multiple premium AI language models—including Claude 4, GPT-4o, and the o1 Reasoning Model—into a single, convenient sidebar within your browser. Designed to enhance research, reasoning, and knowledge discovery, it allows users to chat with various AI agents simultaneously, compare perspectives, and streamline workflow directly while browsing.

Featuring quick-access methods like keyboard shortcuts, right-click menu, and toolbar icon, Definio ensures fast and seamless interactions without interrupting your reading or browsing flow. Its privacy-first, non-intrusive side panel design keeps AI conversations persistent and visible, enabling smarter question-asking, content summarization, and efficient idea brainstorming. Whether you are a student, professional, or avid learner, Definio AI Copilot empowers you to turn complex content into clear insights effortlessly.

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Manifest V3 Extension AI Productivity Developer Tools
By:
https://definio.org
Users:
2,000
Rating:
4.86
(29)
Version:
2.3.1 Last updated: 2025-06-09
Creation date:
2022-02-17
Risk:
Low risk impact Low risk likelihood
Permissions:
  • sidePanel
  • contextMenus
  • windows
Size:
572.00KB
Email:
ad*****@definio.org
URLs:
Website
Full description:
See detailed description
Source:
Chrome Web Store
Data ingested on:
2025-07-09

Publisher Change History

2024-03-14: Email was changed from zu*****@gmail.com to ad*****@definio.org

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User reviews

Definio is praised for being a versatile, all-in-one AI-powered study and productivity tool that combines translation, note-making, and chat functionalities seamlessly within the browser, significantly improving workflow and learning efficiency. Users appreciate its ease of use and helpful features especially for studying and professional tasks. Some users experienced connectivity issues with the OpenAI API and expressed interest in additional capabilities like text-to-speech. Overall, it is highly recommended by users for enhancing productivity and learning.
Pros
  • Highly convenient multi-functional tool integrating dictionaries, translations, writing assistance, AI chat, note-taking, and progress tracking.
  • Enhances productivity by allowing users to interact with text directly in the browser without switching tabs or copying and pasting.
  • Smooth and user-friendly interface that is effective for both quick tasks and in-depth learning or work needs.
  • Highly beneficial for students and professionals for summarizing, translating, note generation, and language learning.
  • Significant positive impact on workflow efficiency and learning effectiveness, as well as improving vocabulary and comprehension.
Cons
  • Occasional issues with connecting to the OpenAI API as reported in multiple reviews.
  • Lack of certain features such as text-to-speech that users would find useful.
Recent reviews
Super useful! Great Stuff
by Pa*****, 2024-04-16

Definio is like the swiss army knife of study tools. Dictionaries, translations, and writing help + you can chat with AI, take notes, and track your progress. you just have to try to understand how convenient this tool really is. big ups to definio team ! <3
by To*****, 2024-03-06

best website for students
by Sa*****, 2024-03-04
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Definio: Multi-modal AI Copilot - Claude 4, GPT-4o, o1 Reasoning Model requires very minimum permissions.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Risk likelihood
Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension.

Definio: Multi-modal AI Copilot - Claude 4, GPT-4o, o1 Reasoning Model has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* ** ****** ** ********
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