GitHub Copilot is an AI-powered coding assistant developed by GitHub in collaboration with OpenAI and Microsoft. It integrates directly into popular code editors like Visual Studio Code, Neovim, and JetBrains IDEs, providing real-time code suggestions, autocompletions, and even entire function implementations based on the context of the code being written. Copilot supports a wide range of programming languages and frameworks, aiming to enhance developer productivity by reducing repetitive coding tasks and assisting in learning new APIs or languages. It leverages machine learning models trained on vast amounts of publicly available code to generate contextually relevant suggestions.