Satya Nadella interviews Sam Altman about OpenAI's newly launched Codex agent, a tool designed to revolutionize software engineering. Altman describes Codex as a virtual teammate that allows for parallel task delegation, significantly accelerating the development process. He discusses the future of AI models, predicting increased ease of use, reliability, and functionality, including multi-modality and improved tool integration. Nadella and Altman also touch upon the challenges of adapting to the rapid pace of technological advancement in this field and the importance of early adoption of new tools for developers.