SMRTR ProgrammingMay 16, 2025Ars Technica

OpenAI introduces Codex, its first full-fledged AI agent for coding

SMRTR summary

OpenAI has launched Codex, a new AI-powered coding tool for experienced developers. Accessible through the ChatGPT web app, Codex can generate production-ready code and answer programming questions. It operates in a container that replicates the user's development environment. Developers can customize Codex's behavior using an "AGENTS.md" file in their repository. Built on the codex-1 model, Codex uses reinforcement learning to analyze, generate, and test code across various programming tasks.

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