# Lupin According to OpenAITools.app telemetry verified on 2026-11-11, Lupin (chromewebstore.google.com) is an AI platform indexed under AI Answer generating 0 monthly visits with a month-over-month traffic delta of +0 (0.0%). Its primary geographic market is Global (— traffic share), and it operates on a Free pricing model. Top competing alternatives by monthly volume include Merlin AI (1.38M visits/mo), ChatPDF (1.04M visits/mo), Sider (2.64M visits/mo). Ask questions about the page you're reading, answered by an LLM ## Key Telemetry & Specifications | Metric | Value | | :--- | :--- | | Tool Name | Lupin | | Handle | lupin | | Status | active | | Origin | independent | | Maintenance | active | | Official Domain | chromewebstore.google.com | | Website URL | https://chromewebstore.google.com/detail/lupin/kdfaiheakopcdabhlcnbmfjffanaedgm | | Categories | AI Answer, Large Language Models (LLMs), AI Assistant, AI Chatbot, AI Research Tool, AI PDF | | Pricing Model | Free | | Monthly Visits | 0 | | MoM Traffic Change | 0 | | MoM Growth Rate | — | | Primary Market | Global | | Market Share | — | | Direct Visits | 0 | | Organic Search Visits | 0 | | Social Visits | 0 | | Referral Visits | 0 | | Email Visits | 0 | | Review Score | 4.2 | | Saved Count | 0 | | Supported Platforms | Browser Extension | | Billing Platforms | | | Attributes | Features: Browser Extension; Pricing: Free | | Tags | LLM, Question answering, Contextual information, Chat history, PDF download, Open Beta | ## Overview Lupin solves a narrow but frequent problem: you are reading something long — an article, a product page, a YouTube video description — and you want an immediate answer about what it says without copying text into a separate chat window. Once installed, the extension attaches to your current tab and lets you pose a question about that page's content, with the model answering in the extension popup or side panel. Storage behaviour is deliberately modest and clearly documented. Each tab supports a maximum of 80 chats before older history is cleared, and only the five most recent chat histories are retained, so the sixth-newest is dropped automatically. You can also clear a chat manually at any time. An information button in the top-right explains the extension's controls, and a download button writes the chat history for the current tab to a PDF for saving or sharing. Lupin was still in Open Beta as of late 2023, which means it was free to use until a designated cumulative usage threshold was reached, after which the developer planned an official launch. The listing collects personally identifiable information and website content according to its privacy disclosure, does not sell data to third parties and does not use it for unrelated purposes. It remains useful as a no-cost, single-purpose page-question tool, with the expectation that it is a small beta project rather than an actively iterated commercial product. ## Pricing & Plans Free. The Chrome Web Store listing states Lupin is completely free during its Open Beta phase, with a paid or official launch planned once a cumulative usage threshold is reached. ## Key Features & Capabilities - **Ask about the current page:** Pose a question about the material on your active tab and get an answer generated by a large language model using that page as context. - **Works across page types:** Handles reading material such as articles, product pages and YouTube video pages, not just plain text documents. - **Per-tab chat history:** Each tab keeps its own conversation, storing only the five most recent chat histories and capping tabs at 80 chats before older ones are cleared. - **Export chat to PDF:** A download button saves the current tab's chat history as a PDF so you can keep or share the answers. - **Free during Open Beta:** The extension costs nothing while in beta, and a built-in information button explains how to use its controls. ## Primary Use Cases - **Interrogating long articles (Researcher or student):** Get quick answers about a dense piece of reading without scrolling back through the whole text or pasting it into another tool. - **Checking product page details (Online shopper):** Ask targeted questions about a product listing, such as specifications or what is included, directly from the page. - **Understanding a video page (Video viewer):** Ask questions about the information on a YouTube page without leaving the tab or watching the full video. - **Saving answers for later (Analyst compiling notes):** Export the per-tab conversation to PDF to keep a record of the questions and answers gathered while browsing. ## Strengths - Free to use while in beta - Single-purpose and simple to operate from the current tab - Per-tab chat history with a built-in PDF export - Clear, documented storage limits rather than silent data accumulation ## Limitations - Small beta project with a low user count and no update since late 2023 - Only five recent chat histories are kept per tab and 80 chats per tab, so longer conversations get trimmed - Requires access to page content and collects personally identifiable information, which may not suit privacy-sensitive users ## Frequently Asked Questions ### Is Lupin free to use? Yes. The Chrome Web Store listing states it is completely free during its Open Beta phase, and a launch with possible paid access was planned once a cumulative usage threshold was met. ### How much chat history does it keep? Each tab supports up to 80 chats before older ones are erased, and only the five most recent chat histories are stored — the sixth-newest is cleared automatically. You can also clear chats yourself. ### Can I save the answers? Yes. A download button writes the chat history of the current tab to a PDF file, which you can keep or share. ### What data does Lupin handle? Its privacy disclosure states it handles personally identifiable information and website content, does not sell data to third parties, and does not use it for purposes unrelated to the extension's core functionality. ### What is Lupin's monthly traffic and growth trend? Lupin currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0.0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo. ### Is Lupin free? What is its pricing model? Lupin operates on a Free pricing model. Free. The Chrome Web Store listing states Lupin is completely free during its Open Beta phase, with a paid or official launch planned once a cumulative usage threshold is reached. Supported billing and checkout platforms include: not listed. ### What are the best Lupin alternatives in 2026? Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Lupin are: 1. Merlin AI (1.38M visits/mo); 2. ChatPDF (1.04M visits/mo); 3. Sider (2.64M visits/mo); 4. AskYourPDF (127.73K visits/mo); 5. HARPA AI (537.46K visits/mo). ### Which platforms and core AI capabilities does Lupin support? Lupin is classified under AI Answer, Large Language Models (LLMs), AI Assistant, AI Chatbot, supports the following platforms: Browser Extension, and its core capability tags include: LLM, Question answering, Contextual information, Chat history, PDF download, Open Beta. ## Alternatives | Tool Name | Monthly Visits | Pricing Model | Compare | | :--- | :--- | :--- | :--- | | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | Freemium | [Compare](https://openaitools.app/compare/lupin-vs-merlin-ai) | | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | Freemium | [Compare](https://openaitools.app/compare/chatpdf-vs-lupin) | | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | Freemium | [Compare](https://openaitools.app/compare/lupin-vs-sider) | | [AskYourPDF](https://openaitools.app/tool/askyourpdf) | 127,733 | Freemium | [Compare](https://openaitools.app/compare/askyourpdf-vs-lupin) | | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | Freemium | [Compare](https://openaitools.app/compare/harpa-ai-vs-lupin) | | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | Freemium | [Compare](https://openaitools.app/compare/lupin-vs-monica-ai) | | [Myreader AI](https://openaitools.app/tool/myreader-ai) | 25,285 | Freemium | [Compare](https://openaitools.app/compare/lupin-vs-myreader-ai) | | [Mochii](https://openaitools.app/tool/mochii) | 26,988 | Freemium | [Compare](https://openaitools.app/compare/lupin-vs-mochii) | | [Chippy](https://openaitools.app/tool/chippy) | 2,987 | Freemium | [Compare](https://openaitools.app/compare/chippy-vs-lupin) | | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | Freemium | [Compare](https://openaitools.app/compare/lupin-vs-perplexity-ai) | | [Quiz Solver AI](https://openaitools.app/tool/quiz-solver-ai) | 35,177 | Freemium, Paid | [Compare](https://openaitools.app/compare/lupin-vs-quiz-solver-ai) | | [Semantic Search](https://openaitools.app/tool/semantic-search) | 0 | Free | [Compare](https://openaitools.app/compare/lupin-vs-semantic-search) | --- Source: https://openaitools.app/tool/lupin