GitHub Copilot and Qodo Gen are two prominent AI-powered developer tools that offer sophisticated AI programming capabilities. GitHub Copilot provides real-time code suggestions with context-aware completions across multiple programming languages, while Qodo Gen focuses on smart code completion with AI-driven suggestions that adapt to individual programming styles. Both tools have strong chat features, but they differ in their approach to test generation and code review capabilities. GitHub Copilot excels in its broad IDE support, terminal integration, and deep GitHub ecosystem integration, making it suitable for developers seeking comprehensive code completion and chat assistance across multiple environments. Qodo Gen, on the other hand, distinguishes itself with its robust test generation capabilities and specialized features for code review and quality assurance, particularly suited for teams that prioritize test-driven development and comprehensive code review processes.