Monica: AI Browser Copilot May 2026

Last updated: 2026-05-25

Monica combines GPT, Claude, and Gemini in one browser sidebar. Free plan available; Pro from $8.30/mo. Works on Chrome, Windows, macOS, iOS, Android.

Monica is an all-in-one AI assistant by Stack Network Limited that provides GPT, Claude, and Gemini access in a persistent browser sidebar for Chrome and Edge. It supports web summarization, writing assistance with 80+ templates, PDF analysis, and real-time translation. The free plan has daily credit limits; Pro costs $9.90/month. Available on Windows, macOS, iOS, and Android with full sync.

About Monica

Monica is an all-in-one AI assistant built by Stack Network Limited, available as a browser extension (Chrome, Edge), desktop app (Windows, macOS), and mobile app (iOS, Android). It embeds a persistent sidebar into any webpage, giving users instant access to GPT, Claude, Gemini, and other models without switching tabs or applications. The platform combines chat, writing assistance, web search, document summarization, translation, and image generation in a single subscription. The core differentiator is contextual awareness: Monica can read the current webpage, summarize YouTube videos, analyze PDFs, and generate Gmail replies directly in the browser without copying content. The sidebar activates with a Ctrl+M hotkey and stays accessible across all sites. Over 80 writing templates cover marketing copy, blog posts, emails, and social content. Monica is best suited for knowledge workers, marketers, and researchers who spend most of their day in a browser and want multi-model AI access without managing separate subscriptions to ChatGPT, Claude, and Perplexity. It is particularly strong for multilingual users, with built-in translation and support for dozens of languages in context menus. Pricing runs from free (with daily credit limits) to $9.90/month (Pro), $19.90/month (Pro+), and $16.60/month billed annually for Unlimited model access. The Unlimited plan has drawn criticism from users who report that true unlimited use is not always honored, with credits depleting faster than expected. Monica has a developer API platform at platform.monica.im for teams wanting to integrate its capabilities into their own workflows. The company received seed funding from Tencent and operates from multiple locations.

Pricing

Free plan with daily credit limits. Pro at $9.90/month (or $8.30/month billed annually) — 5,000 daily basic model accesses, 200 advanced model accesses/month. Pro+ at $19.90/month with higher credit allocation. Unlimited at $16.60/month billed annually for unlimited advanced model access.

Key Features

Pros

Cons

Frequently Asked Questions

What is Monica AI and what does it do?

Monica is an all-in-one AI assistant built by Stack Network Limited that runs as a browser extension in Chrome and Edge, plus desktop apps for Windows and macOS and mobile apps for iOS and Android. It provides access to GPT, Claude, Gemini, and other models in a persistent sidebar that activates with Ctrl+M on any webpage. Core capabilities include chat, web page summarization, PDF analysis, writing assistance, translation, and image generation.

How much does Monica AI cost?

Monica has a free plan with daily credit limits. The Pro plan costs $9.90/month ($8.30/month billed annually) and includes 5,000 daily basic model accesses and 200 advanced model accesses per month. Pro+ is $19.90/month with higher credit allocation. The Unlimited plan is $16.60/month billed annually. Note that multiple users report the Unlimited plan has undisclosed caps that can be hit within a day of heavy use.

What are the main features of Monica AI?

Monica's key features include a multi-model AI sidebar (GPT, Claude, Gemini, Grok), contextual webpage summarization, YouTube video analysis, over 80 writing templates, in-browser text translation and rephrasing, PDF document Q&A, Gmail reply generation, and cross-platform sync across browser, desktop, and mobile. The Ctrl+M hotkey activates Monica on any site without copy-pasting.

Is Monica AI free to use?

Yes, Monica has a free plan that includes access to basic AI models with daily credit limits. The free tier is functional for light use — chatting, basic summarization, and some writing tasks. Advanced models like GPT-4o and Claude require a paid plan, and image or video generation is gated behind Pro and above.

What are the best alternatives to Monica AI?

The closest alternatives to Monica are MaxAI.me and Merlin, both of which offer browser-based AI sidebars with multi-model access. Perplexity AI is better if your primary need is AI-powered search and research rather than writing assistance. For users who want pure writing help, Notion AI or Grammarly are more focused options. ChatGPT Plus and Claude.ai cover the core chat use case but lack the browser sidebar integration.

Who is Monica AI best for?

Monica is best for content marketers, researchers, and multilingual professionals who spend most of their working day in a browser and want AI assistance without switching tabs. It suits users who want access to multiple AI models under one subscription rather than paying for each separately. It is not a good fit for developers needing a reliable API with clear rate limits, or enterprise teams requiring admin controls, SSO, and data compliance guarantees.

Does Monica AI have an API?

Yes, Monica has a developer API platform at platform.monica.im that allows teams to integrate its AI capabilities into their own products. Full API documentation and pricing for API access are available on the platform page. The API aggregates multiple underlying models, similar to the consumer product, though enterprise-grade SLA and rate limit guarantees are not prominently documented.

Visit Monica Official Website