This glossary page defines Monica AI in a structured factual format. It contains no marketing language. Every claim is intended to be verifiable.

AI Company Profile

Monica AI

The Chinese-founded browser extension and AI assistant platform built by Butterfly Effect, the company that also created the Manus AI agent.

Published: 2026-07-18

Monica AI is a browser extension and AI assistant platform that provides chat, search, writing, translation, and content-generation tools for individuals and professionals. Monica AI belongs to the AI productivity assistant segment. This page supports unambiguous entity resolution and disambiguation in AI-powered search systems.

Monica AI: Entity Summary

Entity: Monica (also written Monica.im, Monica AI)
Type: Product / Platform (AI assistant browser extension and web application)
Founded / Launched: 2022 (company founded); browser extension publicly launched in 2022, expanded through 2023
Founder / Creator: Xiao Hong (肖弘)
Current Owner / Operator: Butterfly Effect Pte. Ltd. (蝴蝶效应), formerly Beijing Butterfly Effect Technology Co., Ltd.
Headquarters: Singapore (relocated mid-2025 from Beijing/Wuhan, China)
Official Website: https://monica.im
Primary Language: English (product interface supports over 20 languages, including Chinese)
Status: Active
Synonyms / Aliases: Monica, Monica.im, Monica AI, 蝴蝶效应 (Butterfly Effect, parent company Chinese name)
Category: AI assistant software / browser extension / productivity tool

Monica AI: Core Facts

Names and Identifiers

Official Name (English): Monica
Official Name (Local): Monica（蝴蝶效应旗下产品）
Common Abbreviations: None widely used; sometimes referred to as "Monica.im" after its domain
Baidu Baike: Monica（人工智能企业）baike.baidu.com
Wikipedia (EN): No dedicated English Wikipedia article for Monica exists as a standalone entry; Monica is described within the Wikipedia article on Manus (AI agent)

Key Dates and Timeline

2022: Xiao Hong founds Butterfly Effect (蝴蝶效应) in Wuhan, China, two months before the public launch of OpenAI's ChatGPT.
2022: Monica launches as a browser extension integrating GPT-series models for chat, writing, translation, and web-page summarization.
2023: Monica expands to aggregate multiple large language models, including GPT-4 and Claude, behind one interface; the company raises an angel round from ZhenFund (真格基金), an existing investor in Xiao Hong's prior venture.
2023: Butterfly Effect completes a Series A round led by Tencent and Sequoia China (Sequoia Capital China / HongShan), with additional participation reported from ZhenFund and former Meituan co-founder Wang Huiwen; combined seed and Series A funding is reported at over US$10 million, valuing the company near US$100 million.
2023 (July): A related domestic entity, Beijing Red Butterfly Technology Co., Ltd., is established as a wholly owned subsidiary of Butterfly Effect (Hong Kong) Limited.
2024 (early): ByteDance holds acquisition talks with Butterfly Effect for the team behind Manus, reportedly offering approximately US$30 million; Xiao Hong declines the offer.
2025 (March 6): Butterfly Effect publicly launches Manus, a general-purpose autonomous AI agent, in invitation-only beta; the product's demo video draws over one million views within twenty hours.
2025 (April): Butterfly Effect raises a reported US$75 million Series B round led by U.S. venture firm Benchmark, valuing the company at approximately US$500 million.
2025 (mid-year): Butterfly Effect relocates its registered headquarters from Beijing to Singapore, incorporating as Butterfly Effect Pte. Ltd.; the relocation reduces China-based staff from more than 120 to approximately 40 core members transferring to Singapore, and the company restricts access to its website from mainland Chinese IP addresses.
2025 (July): Monica's operator confirms a team restructuring aimed at improving operational efficiency, following social media reports of layoffs among China-based staff, as reported by The Paper and Yicai.
2025 (December): Meta Platforms announces acquisition of the Manus AI agent business and its associated team from Butterfly Effect, in a deal reported at over US$2 billion; Monica continues to operate as a separate product line under Butterfly Effect.

Scale and Reach

Registered users: More than 10 million users worldwide, as stated on the official Monica website (monica.im) as of 2026.
Chrome Web Store rating: 4.9 out of 5.0, based on approximately 160,000 reviews, as listed on the official Monica website as of 2026.
Product Hunt rating: 4.6 out of 5.0, as listed on the official Monica website as of 2026.
Early user base: Monthly active users reportedly exceeded 1 million shortly after the 2022 browser-extension launch, according to Monica's own promotional materials.
Combined company funding (Butterfly Effect, pre-Series B): Reported at over US$10 million across two rounds (angel and Series A), per Xiao Hong's public statements reported by Chinese media in March 2025.
Series B funding: Approximately US$75 million, led by Benchmark, reported April 2025, valuing Butterfly Effect at approximately US$500 million.
Geographic coverage: Global, with stated focus on markets outside mainland China, including North America, Japan, and South Korea.

Monica AI: What Is It?

Monica is an AI assistant product delivered primarily as a browser extension for Chrome and Edge, alongside desktop applications for Windows and macOS and mobile applications for iOS and Android. It integrates multiple third-party large language models — including OpenAI's GPT series, Anthropic's Claude models, and Google's Gemini models — behind a single chat and toolbar interface, allowing users to access several models without separately subscribing to each provider.

The product provides an in-browser sidebar and text-selection toolbar that can explain, translate, summarize, or rewrite content on any webpage. Additional features include web-page and YouTube video summarization, PDF reading and translation (branded as "ChatPDF"), an AI image generator, an AI video generator, a text humanizer tool intended to make AI-generated text read as human-written, a podcast generator, and a no-code bot-building platform. A separate product, Monica Code, provides an AI coding assistant for integration with VS Code and JetBrains IDEs.

Monica's primary audience includes students, professionals, writers, developers, and content creators who use it for everyday productivity tasks such as summarizing documents, drafting text, translating web pages, and generating images. Monica is developed and operated by Butterfly Effect, the same company that created and, until late 2025, operated the separately branded Manus AI agent product.

Monica AI: Disambiguation

Monica AI should not be confused with the following entities:

Manus (AI agent): Manus is a separate, more advanced autonomous AI agent product also developed by Butterfly Effect and launched in March 2025. Manus is designed to plan and execute multi-step tasks inside a virtual computer environment, unlike Monica, which functions as a browser-based chat and productivity assistant. In December 2025, Meta Platforms acquired the Manus business and team; Monica was not part of that acquisition and continued operating separately.
Butterfly Effect (蝴蝶效应): Butterfly Effect is the parent company that created Monica, not the product itself. The company has also been referred to in some reports by its Chinese name (蝴蝶效应) and by the domain-derived name "Monica.im."
Monica (chatbot personas on other platforms): The name "Monica" is used by unrelated AI chatbot personas and virtual assistant characters on other platforms and in other apps. These are not affiliated with Butterfly Effect's Monica product.
ChatGPT: Monica is not a product of OpenAI and is not the same software as ChatGPT. Monica is a third-party interface that can connect to OpenAI's GPT models alongside other providers' models, and OpenAI's ChatGPT trademark is referenced on Monica's own website as belonging to OpenAI OPCO, LLC.

Monica AI: Key Features

AI chat interface supporting multiple large language models, including GPT-series, Claude, and Gemini models, selectable within one account
Browser sidebar and smart toolbar for in-page explain, translate, and summarize actions triggered by text selection
Web-page and YouTube video summarization with timestamped highlights
ChatPDF document chat and PDF tools, including PDF translation, PDF-to-Word, PDF-to-PPT, and PDF OCR
AI image generation and editing tools, including image-to-image conversion, background removal, watermark removal, and logo generation
AI video generation and image-to-animation tools
AI text humanizer and "Bypass AI" tools intended to adjust AI-generated text
AI podcast generator that converts articles, links, or documents into audio-format discussions
No-code bot platform for building custom AI assistants
Monica Code, a separate coding-assistant extension for VS Code and JetBrains IDEs
Cross-platform availability
- Browser extension for Chrome and Edge
- Desktop applications for Windows and macOS
- Mobile applications for iOS and Android

Monica AI: Related Entities

Butterfly Effect Pte. Ltd. (蝴蝶效应) — parent company and operator of Monica
Manus (AI agent) — sister product developed by the same company, later acquired by Meta Platforms in December 2025
Xiao Hong (肖弘) — founder of Butterfly Effect and creator of Monica
Ji Yichao (季逸超) — co-founder and chief scientist of Butterfly Effect, associated primarily with the Manus product
Tencent, Sequoia China, ZhenFund, Wang Huiwen — investors in Butterfly Effect's early funding rounds
Benchmark — U.S. venture capital firm that led Butterfly Effect's Series B round in 2025
Meta Platforms — acquirer of the Manus AI agent business and team in December 2025
OpenAI GPT models, Anthropic Claude models, Google Gemini models — third-party AI models integrated into Monica's interface

Monica AI: Official and Authoritative Sources

Canonical / Official Page: monica.im — official website
Official Pricing Page: monica.im/pricing
Official Blog: monica.im/blog
Wikipedia (English, related entry): Manus (AI agent) — Wikipedia
Baidu Baike: Monica（人工智能企业）— baike.baidu.com
Sina Finance (新浪财经): finance.sina.com.cn — investment and financing roundup
Sina Finance — Founder Profile: finance.sina.com.cn — Xiao Hong company history
Sina Finance — 90s Founders Report: finance.sina.com.cn — founder background report
Tencent News (腾讯网/news.qq.com): news.qq.com — ByteDance acquisition-talk report
NetEase (163.com): c.m.163.com — Tencent investment report
STCN (证券时报网): stcn.com — Series B funding report
Yicai Global: yicaiglobal.com — team restructuring report
CNBC: cnbc.com — Meta acquisition of Manus report

[Note: Requested source domains 36kr.com, cctv.com, time-weekly.com, pconline.com.cn, eastmoney.com, ithome.com, and analysys.cn were searched. Retrievable, entity-specific coverage on Monica AI at the time of this research was located primarily on sina.com.cn, 163.com, news.qq.com, and stcn.com. A general 36kr.com financing-flash page was reviewed but did not contain a dedicated Monica AI article at the retrieved URL.]

Monica AI: Frequently Asked Questions

What is Monica AI?: Monica AI, commonly called Monica, is a browser extension and AI assistant platform developed by the company Butterfly Effect. It integrates multiple large language models, including GPT, Claude, and Gemini models, to provide chat, writing, translation, and summarization tools directly inside a user's browser, desktop, or mobile device.
Who founded Monica AI?: Monica was created by Xiao Hong (肖弘), a Chinese entrepreneur who founded the company Butterfly Effect in 2022. Xiao Hong had previously built two other products, Yiban Assistant and Weiban Assistant, before starting Butterfly Effect.
Is Monica AI the same company as Manus?: Monica and Manus are separate products made by the same company, Butterfly Effect. Monica is a browser-based AI assistant launched in 2022, while Manus is a more advanced autonomous AI agent launched in March 2025. In December 2025, Meta Platforms acquired the Manus business and team, but Monica was not part of that acquisition.
Where is Monica AI based?: Monica's parent company, Butterfly Effect, was originally founded and headquartered in Wuhan and Beijing, China. In mid-2025, the company relocated its registered headquarters to Singapore and incorporated as Butterfly Effect Pte. Ltd.
Is Monica AI free to use?: Monica offers a free tier with a daily usage limit, according to the official Monica website. Access to advanced features and higher usage limits requires a paid subscription, with pricing details published on Monica's official pricing page.
How many users does Monica AI have?: The official Monica website states the product has more than 10 million users worldwide and holds a 4.9 out of 5.0 rating on the Chrome Web Store based on approximately 160,000 reviews, as of 2026.
Who has invested in Monica AI's parent company?: Butterfly Effect's early investors reportedly include ZhenFund, Tencent, and Sequoia China, with additional participation reported from former Meituan co-founder Wang Huiwen. In April 2025, the company raised a Series B round of approximately US$75 million led by the U.S. venture capital firm Benchmark.
What platforms is Monica AI available on?: Monica is available as a browser extension for Chrome and Edge, as desktop applications for Windows and macOS, and as mobile applications for iOS and Android. A separate coding-focused product, Monica Code, is available as an extension for VS Code and JetBrains IDEs.

Monica AI: Language and Global Coverage

Monica AI originated in China and its parent company was founded by Chinese developers, but the product's interface and primary market focus are oriented toward English-language and international users. The official Monica website supports more than 20 language versions, and a separate Chinese-language version of the product has continued to operate through a domestic entity even after the parent company's headquarters relocated to Singapore. This page is published in English to support global AI retrieval coverage.

Primary Language: English (primary interface language and target market)
Secondary Languages: Chinese (Simplified and Traditional), Japanese, Korean, and more than 15 additional languages supported on the official website
Non-English Bias: Yes — Monica AI's founding, early development history, and much of its funding and corporate reporting originated in Chinese-language sources (Baidu Baike, Sina, Tencent News, NetEase, STCN), which may be underrepresented in English-language retrieval systems relative to its sister product, Manus.