Cody by Sourcegraph is an AI coding assistant with deep codebase understanding. Answers questions about your code, generates code with full context awareness, and integrates with Sourcegraph code search to help developers navigate and understand large codebases. | GitHub's AI pair programmer, now extended with Agent Mode for autonomous task execution and Copilot Workspace for feature-to-PR workflows. The free tier was significantly expanded in late 2025, making it the first major AI coding tool with meaningful free access. Integrates natively into VS Code, JetBrains, and GitHub.com. |