Lunavect

How to check Codex usage limits on a Mac

Codex with a ChatGPT plan has a five-hour limit and a weekly limit, each with its own reset time. To see them:

  1. In the Codex CLI: run /status in an active session. It shows the five-hour and weekly limits with their reset times.
  2. In your ChatGPT account: the Codex usage dashboard shows the same limits.
  3. In your Mac menu bar, all the time: Lunavect shows how much of both Codex limits is left, next to your Claude Code limits and running sessions.

Keep Codex limits in view with Lunavect

Lunavect is a free, open-source menu bar app for Codex and Claude Code. After you connect Codex, it asks the official Codex app or CLI on your Mac for the current rate limits; sign-in stays with Codex.

Lunavect in the menu bar showing Claude 68% and Codex 54% of weekly usage left

Download Lunavect · Installation · Connections

Common questions

Does Lunavect need an OpenAI API key? No. It uses the official Codex client that is already signed in on your Mac.

Why is a Codex limit shown as unavailable? Lunavect shows only fresh values from the client. If Codex is not running or cannot answer, the value is marked as unavailable instead of guessed. See connections.

Can I use only Codex? Yes. Connect Codex, Claude Code or both.