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GitHub Copilot is the most widely adopted AI pair programmer, offering inline code completion, chat and agentic edits across major editors. Backed by frontier models and deeply integrated with the GitHub ecosystem, it supports pull-request summaries, code review and a CLI. For most professional developers it is the default AI coding assistant.

Cody is Sourcegraph's AI coding assistant, distinguished by deep codebase context powered by Sourcegraph's code-search and graph technology. It answers questions, writes code and explains large repositories with awareness of your whole codebase. Cody is especially strong for enterprises with large, complex codebases.

Amazon Q Developer (formerly CodeWhisperer) is AWS's AI coding companion, tuned for cloud development and deeply aware of AWS services and APIs. It offers completions, security scanning, agentic code transformation and help with infrastructure code. For teams building on AWS, it integrates naturally into the cloud workflow.

Cursor is an AI-first code editor, a fork of VS Code rebuilt around deep model integration. Its agent mode can plan and execute multi-file changes, while features like Tab completion, codebase-wide context and inline edits make it feel like the editor and AI are one. Cursor has become a favourite among developers building with AI at the centre of their workflow.