OPENAI INTRODUCES CODEX, ITS FIRST FULL-FLEDGED AI AGENT FOR CODING

Summary from the TLDR newsletter

OpenAI's Codex is an agentic coding tool that allows experienced developers to delegate rote and relatively simple programming tasks to an AI agent to generate production-ready code. It is a unique interface that can be accessed from the sidebar in the ChatGPT web app. Developers can include an 'AGENTS.md' file to give the agent custom instructions. Codex is built on a fine-tuned variation of OpenAI's o3 reasoning model. It is now rolling out to ChatGPT Pro, Enterprise, and Team users - Plus and Edu support will come at a later date.