Codex CLI is an open-source coding agent from OpenAI, written primarily in Rust, that runs locally on your computer. Codex IDE extension is a coding agent that runs in Visual Studio Code and its forks ...
GPT-5-Codex introduces agentic coding with cloud hand-offs. GitHub integration catches bugs and backward compatibility issues. Usage of Codex surged 10x among developers in a month. OpenAI today ...
GPT-5.1 speeds up coding with adaptive and no-reasoning modes. New prompt caching cuts API costs for embedded app developers. New tools make AI agents more capable inside modern IDEs. OpenAI is back ...