Free ChatGPT Chrome extension to answer your queries, summarize videos, articles, pdf, and websites, write emails, and write content on social media. Login to Merlin AIUnlock better models like GPT 5, Claude Sonnet 4.5, Grok 4, DeepSeek R1 and Gemini 2.5 Pro. Create images, do Deep Research and compile Projects. Save your history, and sync it across your mobile app and Chrome extension . Merlin is an AI Chrome Extension and web app that works as your AI-powered assistant, saving you time and money. It provides top AI models such as ChatGPT, GPT 4 , Claude, Deepseek V3, Opus, Llama, Mistral etc. to generate AI responses on Google Search, summaries for YouTube videos, blogs, documents (PDF or PPT), social media posts and replies to comments on LinkedIn, Twitter and Gmail. Merlin also translates into more than twenty-five languages. Merlin AI is a powerful AI-powered assistant available as a Chrome extension and web app that streamlines research and content generation by leveraging multiple leading AI models such as GPT-4, Claude, Gemini, Mistral, and Llama. It enables users to instantly summarize videos, articles, PDFs, and websites, draft emails, create social media content, and interact with webpages without switching tabs. With over 2 million users worldwide, Merlin supports real-time web access, multilingual ...