GitHub Copilot

What Is GitHub Copilot?

GitHub Copilot is the original AI pair programmer and still the market leader by install base. Powered by OpenAI Codex and now GPT-4o, it integrates directly into VS Code, JetBrains IDEs, Neovim, and Visual Studio — meaning it works inside the editor you already use without changing your workflow.

Copilot provides inline code completions as you type, full function and class generation from comments, and since the Copilot Chat update, full conversational AI assistance within the IDE. The combination of autocomplete and chat makes it a complete AI coding companion rather than just a suggestion engine.

Key Features

Copilot Workspace — launched in 2025 — allows you to describe a feature or bug fix in natural language and receive a full multi-file implementation plan. The system reasons about your entire repository, identifies which files need changing, and proposes a complete set of edits. For large codebases, this is transformative.

Copilot code review integrates AI review comments directly into GitHub pull requests, flagging potential issues, suggesting improvements, and explaining decisions — without leaving the GitHub interface. Teams using this feature report reduced review cycle times of 20-30% in Vanderflip Network surveys.

The free tier, introduced in 2024, provides 2,000 code completions and 50 chat messages per month — enough to evaluate the tool before committing. Student and educator accounts get Copilot Pro at no cost.

Pricing

GitHub Copilot Free includes 2,000 completions and 50 chat messages per month. Copilot Pro at $10/month (or $100/year) removes all limits and adds Copilot Workspace. Copilot Business at $19/user/month adds organization management, policy controls, and audit logs. Enterprise at $39/user/month adds fine-tuned models on your codebase.