Monica

★★★★☆3.9 / 5 editorial Freemium Free tier with a daily quota of standard-model queries. Paid plans unlock advanced models and higher limits; check the official site for current plan prices before subscribing.

All-in-one AI sidebar that follows you across the web with every major model

✓ Editor-verified listing — details reviewed by Grab AI Tool editors; pricing re-checked regularly.

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#chatbot#browser extension#multi-model#summarize#writing help

What is Monica?

Monica is a browser extension and app that parks a multi-model assistant in your sidebar wherever you browse. Highlight text on any page to explain, translate or rewrite it; summarise articles and YouTube videos in place; or open a chat that can draw on GPT, Claude, Gemini and other top models. It also bundles writing help, image tools and PDF chat into the same panel.

The appeal is convenience: instead of copying text into a chatbot tab, the assistant comes to the content. Free users get a daily quota of basic-model queries, while paid plans unlock advanced models and higher limits across chat, writing and summarisation features. For heavy readers and researchers who live in the browser, Monica removes a lot of copy-paste friction.

Key Features

Browser sidebar assistant on any web page
Chat with GPT, Claude, Gemini and more
One-click page, PDF and YouTube summaries
Select-text explain, translate and rewrite tools
Mobile and desktop apps alongside the extension

Pros

Assistant travels with your browsing
Summaries in place save constant tab-switching
One plan covers many underlying models

Cons

Advanced models burn through quotas quickly
Feature sprawl can overwhelm new users
Browser extension needs broad page permissions

Pricing

Model: Freemium
Free tier with a daily quota of standard-model queries. Paid plans unlock advanced models and higher limits; check the official site for current plan prices before subscribing.

Adding Up Your AI Bill?

If you pay for Monica alongside other AI subscriptions, the monthly total adds up quietly. Tick every tool you pay for in our free AI Tool Cost Calculator to see your real monthly and yearly bill — and spot overlaps you can cut. Still choosing? Start with our guide on how to choose the right AI tool.