Codex App

Codex App is OpenAI’s official desktop client. It is useful for managing local projects, threads, workspaces, and review flows through a graphical interface. It reads the same Codex configuration as Codex CLI, so you do not need to write the SU8 API key, model, or endpoint again here.

Download links

Prefer the official entry first. If you use Windows, you can also install directly from the Microsoft Store.

Configuration guide

Codex App shares advanced configuration with Codex CLI through ~/.codex/config.toml and ~/.codex/auth.json.

To connect Codex App to SU8 Codes, read Codex CLI setup. The config.toml on that page sets the SU8 endpoint and model, and auth.json stores your SU8 API key. After writing those files, fully quit and reopen Codex App before the configuration takes effect.

Codex++

Codex++ is a third-party enhancement launcher and management tool for Codex App. It is not an official OpenAI client and does not directly modify the original Codex App installation files. Instead, it starts Codex App through an external launcher and injects enhancement scripts through the Chromium DevTools Protocol.

It is useful if you want to add these abilities to Codex App:

• Use a management tool to inspect, repair, update, and manage enhancements.
• Let Codex App use a custom compatible API.
• Add enhancement entries such as session deletion, Markdown export, project moving, Timeline, and user scripts.
• Use project-provided installers on Windows and macOS.

If you only want to use the official Codex App normally, installing the official client above is enough. Codex++ is more like an enhancement tool, so install it only when you clearly need those extra abilities.