GitHub Copilot
AI pair programmer with 4.7M+ paid subscribers as of Microsoft FY26 Q2 earnings (2026-01-28, up ~75% YoY), offering code completion, chat, and Agent Mode for autonomous development. Multi-IDE (VS Code, Visual Studio, JetBrains, Neovim, Xcode, Eclipse, Zed) and multi-model (Anthropic Haiku 4.5/Opus 4.7, Google, OpenAI GPT-5 mini).
Overview
GitHub Copilot is the most widely adopted AI coding assistant with 4.7M+ paid subscribers as of Microsoft FY26 Q2 (2026-01-28, up ~75% YoY). Deep GitHub integration and multi-model support (Anthropic, Google, OpenAI) provide intelligent code completion, natural language chat, and an innovative Agent Mode that can autonomously implement features and fix bugs.
Agent Mode
Agent Mode enables Copilot to autonomously work on complex tasks: scanning codebases, making multi-file edits, running tests, fixing errors, and creating pull requests. Generally available in VS Code since April 2025, Visual Studio since June 2025, and JetBrains since March 2026.
Multi-Model Lineup
Copilot supports Anthropic (Haiku 4.5, Opus 4.7), Google, and OpenAI models. GPT-5 mini is the default on the Free and Pro tiers. Users can switch models per-task.
Use Cases
Inline code suggestions, code review and refactoring, test generation, documentation writing, and autonomous feature implementation via Agent Mode.