We're excited to partner with OpenAI to start beta testing Codex-powered features across Replit, aiming to make programming easier for users, especially beginners, by providing explanations and insights into code through the Explain Code feature, which allows users to select code blocks and ask for explanations. The goal is to understand where AI can be useful on the programming journey, with plans to expand to other features such as explaining why code isn't working as expected or formatting code by conversation.