Best Lupin Alternatives & Competitors

One-click AI assistant for browsing, writing and research

Chat with any PDF, video, or website and get cited answers in seconds

AI sidebar and browser agent for reading, writing and research

Chat with any PDF and add an AI chatbot trained on your own content

One browser agent that combines every major AI model with web automation

All-in-one AI assistant across web, browser, desktop and mobile

An AI assistant that reads your books and documents with you — and quotes the page

One AI sidebar for ChatGPT, Claude and Gemini across the web

ChatGPT in your browser sidebar, without switching tabs

Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

AI browser extension that reads quiz questions and answers them with explanations

SpecialistAsk questions of any webpage and get ChatGPT-powered answers instantly