Codex saves pages straight into your Showspace from a terminal, your editor or the ChatGPT desktop app, and it can use all twenty of the app's commands.
Codex is OpenAI's coding agent. It works in a folder on your Mac, editing files and running commands, so a status page or a project report is as natural a job for it as code.
On a Mac it runs as an open-source command-line tool, as an editor extension, and as the Codex mode of the ChatGPT desktop app. The standalone Codex app merged into the ChatGPT desktop app on July 9, 2026. The desktop app and the command-line tool share one settings file.
Made byOpenAI
Runs onMac, Apple Silicon or Intel, in a terminal, an editor or the ChatGPT desktop app
Where pages goStraight into the folder you work in
App commandsYes, all twenty
CostIncluded with every ChatGPT plan, including Free, or billed per use with an OpenAI API key
Also calledOpenAI Codex, Codex CLI, Codex app
Set it up
In lite.computer, click the account button at the bottom of the sidebar (it reads Free trial until you buy), choose Agent Helper, and copy the Setup prompt. Paste it into Codex. It remembers where your Showspace is and tries to connect to lite.computer, then tells you whether the connection works now or only from your next conversation. It asks before each step and tells you when it needs your help. If you would rather Codex check first, ask it to read lite.computer/setup instead.
Keep lite.computer open on your Showspace. Start a new Codex session and ask Use the lite.computer tool to list every page in my Showspace. It lists the pages in your folder.
Try this prompt
Here is a starter prompt. How well it works depends on how your AI is set up, so adjust it to fit yours.
Paste into Codex
Build an interactive release page for this project: tabs for new features, fixes and open items, a timeline of this week's changes that animates in, a filter by author, and a generated cover illustration at the top. Save it as a single self-contained HTML file in my Showspace, then open it in lite.computer. In the ChatGPT desktop app, schedule it to rebuild every weekday morning.
Good to know
We use Codex with lite.computer ourselves.
For pages in your Showspace, use Codex in the terminal, your editor or the ChatGPT desktop app on your Mac.
Remote lets you control Codex on your Mac from the ChatGPT phone app. In the ChatGPT desktop app, go to Settings, then Connections, then Control this Mac or PC, and scan the QR code with your phone. Codex keeps working on your Mac, so pages land in your Showspace.
To refresh a page on a schedule, use Codex in the ChatGPT desktop app with a local project that includes your Showspace and ask it to schedule the refresh. Scheduled tasks are listed under Scheduled in the sidebar and run on your Mac while the app is open.
Codex creates images with its built-in image tool. Ask for a cover photo or illustrations in a report, and it builds them into the page, so they travel with the page wherever it goes.
Questions
Does Codex work with lite.computer?
Yes. Codex running on your Mac saves HTML pages into your Showspace, and lite.computer shows each one as it lands. Once it is connected to the app, it can open pages and arrange windows there as well.
What happened to the Codex app?
On July 9, 2026 OpenAI merged the Codex app into the new ChatGPT desktop app, where Codex is a mode beside Chat and Work. It shares settings with the Codex command-line tool, so the setup above covers both. See also ChatGPT.