Sourcegraph Cody is an AI coding assistant that helps developers understand, write, and fix code faster by leveraging the latest LLMs and development context. It uses Sourcegraph's advanced Search API to pull context from local and remote codebases, integrating with codehosts like GitHub and GitLab, and IDEs such as VS Code and JetBrains. Cody offers features like developer chat, code completions, auto-edits, and customizable prompts.