lucascs@protonmail.com Lucas Couto OpenAI's official Electron desktop application for Linux, published under the Codex brand and released on 2026-08-11. It bundles ChatGPT, ChatGPT Work and the Codex coding agent in a single window; the Codex CLI, a private Node.js runtime and ripgrep are shipped inside the payload. This is proprietary, closed-source software distributed only as a prebuilt binary: nothing here is compiled from source, the package is neither mirrored nor redistributable in binary form, and using it requires an OpenAI account. Upstream calls the installed command "chatgpt", which is why the package name and the binary name differ. Note that the Linux build is a preview: it has no setuid sandbox helper and depends on unprivileged user namespaces for renderer isolation. Install the upstream AppArmor profile, which grants the app the user-namespace access its renderer sandbox needs Use EGL for smooth rendering on high refresh rate monitors Run in wayland mode under wayland sessions, xwayland otherwise. This flag doesn't affect x11 sessions. https://developers.openai.com/codex/app