心流, or "Flow," is a free AI search assistant designed to enhance productivity while browsing the web through the Chrome platform. It operates from a sidebar, providing users with real-time answers to questions, summarizing lengthy articles, and offering creative writing inspiration. This tool aims to streamline the browsing experience by minimizing the need to switch between pages for information.

With features like instant question answering, quick article summarization, and document outlining assistance, 心流 supports users in managing their tasks more efficiently. To start using 心流, users can easily add it to their Chrome browser, log in, and activate it with a simple keyboard shortcut. This integration allows for seamless interaction, making it a valuable tool for anyone looking to improve their online productivity.