GitHub Copilot and Tabnine are AI coding assistants that provide real-time suggestions and improve coding efficiency.GitHub Copilot, developed by GitHub and OpenAI, uses the Codex model to analyze code context and provide coding suggestions.Tabnine prioritizes code quality and privacy, allowing customization for specific projects and offering support for various programming languages.Tabnine is considered more user-friendly and seamless in daily workflow, providing attention to testing, neat code snippets, and easy integration.