Magical is a free AI writing assistant and text expander that leverages OpenAI's ChatGPT and GPT-4 technology to automate repetitive tasks. It can generate AI-powered messages, emails, and customer replies based on GPT-4 prompts and save commonly used messages as templates for readily expandable use. Magical also offers functionalities like quickly updating databases and transferring information from any website or application to Google Sheets, among others. Supporting team sharing and adaptable to various work scenarios, Magical aims to enhance overall work efficiency.