OpenAI has introduced an AI coding tool called Codex for experienced developers in research preview.Codex allows developers to delegate simple programming tasks to an AI agent that generates production-ready code and displays the process.Accessible through the ChatGPT web app, users can input prompts and choose between 'code' for code generation or 'ask' for answers and advice.Tasks given to Codex are performed in a separate container with the user's codebase, replicating their development environment accurately.