What is GitHub Copilot?
GitHub Copilot is an AI code completion plugin that suggests code in real-time as you type, trained on billions of lines of public code. It integrates as a plugin into existing IDEs (VS Code, JetBrains, Neovim) rather than being a standalone editor. At $10/month for individuals, it's the cheapest and most widely adopted AI coding tool, with 50%+ market share in the category.
Key Features
Code Completion
Real-time suggestions as you type
Chat (Copilot Chat)
Conversational coding assistance
Multi-IDE Support
VS Code, JetBrains, Neovim, Vim, Visual Studio
GitHub Integration
Native GitHub workflow integration
Pros & Cons
What works
- Cheapest — $10/mo vs Cursor $20, Windsurf $15
- Multi-IDE support — VS Code, JetBrains, Neovim, Vim
- 50%+ market share — 15M+ users
- Plugin model — works in existing IDE, no migration
Watch out for
- File-level context only — doesn't understand full codebase like Cursor (200K)
- Lower acceptance rate — ~60% vs Cursor 72%
- Single model — no multi-model switching
- No multi-file refactoring — operates at file level
