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Monica

AI-first

AI Chat & Assistants

Monica is an all-in-one AI assistant that runs as a browser extension, web app, desktop app, and mobile app. It routes prompts across multiple underlying models (including GPT, Claude, and Gemini families) and bundles chat, writing, translation, summarisation, image and video generation, and an AI agent behind a single sidebar interface.

ABOUT MONICA

Monica is a cross-platform AI assistant from Butterfly Effect Pte. Ltd., available as a browser extension, web app, desktop app, and mobile app. It aggregates access to multiple LLMs behind one sidebar and layers on writing, translation, image and video generation, and an AI agent, with a free daily tier and three paid tiers priced from about 8 USD to 83 USD per month on annual billing.

OVERVIEW

Who is it for?
Knowledge workers, writers, and researchers who want one sidebar assistant across the browser and desktop that reaches multiple AI models without opening a separate app or paying for each one.
Problem
Users who rely on several models (GPT, Claude, Gemini) end up juggling multiple subscriptions and tabs, and lose the in-context help they need while browsing, reading PDFs, or writing email.
Solution
Monica runs as a sidebar across any website plus a web, desktop, and mobile app. It routes prompts across GPT, Claude, and Gemini family models and bundles chat, writing, translation, PDF analysis, image and video generation, and an AI Agent for multi-step tasks.
What makes it unique
A single subscription unlocks multiple third-party LLMs with side-by-side answer comparison, and the same account works as a browser extension, standalone web app, desktop app, and mobile app.

KEY FEATURES

  • Sidebar AI chat across any website
  • Access to multiple third-party LLMs from one interface
  • Multi-model answer comparison
  • Gmail and Outlook writing assistance
  • Google Search result enhancement
  • PDF and long-document analysis
  • AI translation across text, pages, and images
  • Image and video generation
  • AI Agent for multi-step tasks
  • Mindmap and outline generation

PRICING PLANS

Every published plan tier. Editorial reasoning about which one to buy lives on our reviews and best-of pages, not here.

Free

Free

40 daily accesses to basic models with limited access to advanced models and features.

Pro

$8.30/mo

Annual plan at 99 USD per year. Includes unlimited basic-model use and a monthly quota of advanced-model queries.

Pro Plus (Max)

$16.60/mo

Annual plan at 199 USD per year. Adds larger advanced-model quotas and expanded AI agent, image, and video generation limits.

Ultra

$82.90/mo

Annual plan at 995 USD per year. Highest usage tier with the largest quotas across all models and features.

COMPANY

Founded
2022
Headquarters
Singapore
Founders
Xiao Hong, Ji Yichao, Zhang Tao
Publicly traded
No

Where ZPlatform covers Monica

Recommended for

Rankings where ZPlatform recommends this tool for a specific purpose.

Mentioned in

Passing mentions in guides and other posts.

Sources

  1. Monica homepage - Homepage · checked Aug 29, 2026
  2. Monica pricing - Pricing page · checked Aug 29, 2026

This profile answers what is Monica?. For is it good? see any ZPlatform review. For which tool should I choose? see the relevant best-of ranking.