GitHub Copilot is an artificial intelligence tool that helps developers write code faster and with less effort. It is powered by OpenAI Codex, a machine-learning model that can understand and write code based on natural language input and context from comments and existing code. GitHub Copilot is available to all individual developers and can be installed as an extension for your code editor.
It works by providing code completion suggestions as you type, based on your project's context and style conventions. In addition to helping with coding tasks, GitHub Copilot can also assist with translation and testing, and can even be used to create dictionaries and other useful data structures.
GitHub Copilot is designed to improve developer productivity and confidence, and has been shown to have a positive impact on developer workflow.
Worth noting that there has also been some backlash and debate over the legitimacy of the code that GitHub Copilot is using. Matthew Butterick launched a formal investigation challenging the platform back in October 2022.