The AI tool is an AI chatbot called ChatBesti. It has a feature called Supercharge that enhances UI for faster response time and direct connection to OpenAI API for quicker responses. It also offers a searchable chat history for easy access to past conversations. The key chat is stored locally in the browser for easy access and does not require registration. The tool offers free access to its basic features and provides an option to get an OpenAI API key for free.