GitHub Copilot

GitHub's AI pair programmer writes code suggestions in real-time as you type. Studies by GitHub show developers accept 30% of Copilot's suggestions and complete tasks 55% faster. Over 1.8 million paid subscribers and 50,000+ businesses use it. Powered by OpenAI Codex (fine-tuned GPT-4), it works in VS Code, JetBrains, Neovim, and Visual Studio. Copilot Chat lets you ask questions about your codebase in natural language. The most transformative use: writing boilerplate code, test cases, and documentation — the tedious work that developers hate but projects need. At $10/month (individual) or $19/month (business), ROI is measured in hours per week.