mark•r

mark•r is a browser extension that turns any webpage into something you can ask questions about. Highlighting a piece of text on a page brings up an inline AI field where you can type a question, and the assistant answers using both the highlighted passage and the surrounding context of the page, rather than the snippet alone. Beyond one-off answers, mark•r can summarize long articles, pull out key themes and frequently asked questions, take notes directly from what you're reading, and adapt its output for a specific audience, such as turning technical content into an executive summary. It also works inside browser-based email tools, where it can suggest responses to messages. The extension is aimed at students, researchers, marketers, and content creators who want to work with web content faster than reading and summarizing it manually. mark•r offers a free tier with 15 daily AI calls on GPT-3.5, a Standard plan at $8 a month with 100 daily calls and access to GPT-4, and a Pro plan at $12 a month with higher call limits and longer responses; custom enterprise plans are also available. The free tier is limited to GPT-3.5 and 15 daily calls, so the more capable GPT-4 responses require a paid Standard or Pro subscription.