Microsoft Copilot is a generative AI chatbot developed by Microsoft, based on the GPT-4 series of large language models. It was initially released as Bing Chat in February 2023, then rebranded as Microsoft Copilot. Copilot is integrated into various platforms including Microsoft 365 applications, Windows 11, and mobile apps. Copilot assists users with tasks such as content creation, data analysis, and task automation. It can summarize documents, draft emails, generate presentations, and provide insights in Excel. Microsoft Copilot is designed for business and productivity.