Concentration is a ChatGPT-powered plugin designed to enhance user focus by blocking distracting websites. It employs natural language processing (NLP) and ChatGPT to optimize performance and accuracy. Concentration is free for all users. You don't need to pay for ChatGPT to use it. Using Concentration is simple: 1) Enable the extension and open the pop-up window. 2) Enter keywords representing the categories of websites you want to block (e.g., games, movies). 3) Click *Submit* to add each keyword, or click *Delete All* to remove all existing keywords. You can also individually click the ✗ mark next to each keyword to delete them. 4) You can switch between Strict Mode (based on NLP, faster but less accurate) and GPT Mode (based on ChatGPT, slower but more accurate) if needed. 5) From now on, Concentration will attempt to block websites related to your entered keywords throughout your online experience.