CodexPersonal · Pro 20×
Ready4 banked · next expires 2d 11h
Weekly52% left
Codex usage limits, right in your menu bar.
See what's left of your Codex limits, when each one resets, and how many banked resets you have before the next one expires.
Using Claude Code too? See Claude Code limits →Short answer
How do Codex usage limits work?
ChatGPT plans that include Codex have a weekly limit, and some plans add a 5-hour limit. You can see yours with /status in the Codex CLI. Codex also has rate-limit reset credits that expire, and Headroom keeps all of it in your Mac menu bar: what's left of each limit, when it resets, and how many credits you have before the next one expires.
- /statusIn the Codex CLI: the limits on your plan
- HeadroomYour limits, their resets and your banked resets, in your menu bar
The limits
What limits does Codex have?
A weekly limit, a 5-hour limit on some plans, and reset credits that expire. Headroom gives each limit its own row, with a bar, your pace and a reset countdown, and counts your credits as banked resets.
Weekly limit
It resets once a week.
Weekly52% left
5-hour limit
On some plans. It resets when its 5-hour window ends.
5-hour71% left
Rate-limit reset credits
They expire. Headroom calls them banked resets.
4 banked · next expires 2d 11h
The limits as Codex reports them in October 2026. Readings are illustrative.
What Headroom shows
Every limit, its pace and its reset.
Headroom reads your Codex limits and lays each one out like the app's menu: what's left, an even-pace mark and when it resets, with your banked resets on top.
CodexPersonal · Pro 20×
ReadyWeekly71% left
The tick is an even pace: 62% left with 4d 8h to go.
Ahead or behind, at a glance
The tick on a bar marks an even pace through its window. Headroom tells you how many points you're ahead of it, or behind.
4banked resets
4 banked · next expires 2d 11h
Banked resets, counted
Your reset credits, counted in the menu, with the time until the next one expires.
Codex3 accounts
WorkPro 20×
Menu bar62% left
PersonalPlus18% left
Client ABusiness74% left
Every ChatGPT account
Sign in with another account, or bring in the ones you saved with codex-auth. The menu bar can show the one you're using now.
Alerts before you run low
A heads-up when a limit gets low, and a last call before it runs out.
History
Where did your Codex tokens go?
Headroom reads Codex's session logs on your Mac: tokens by model, reasoning effort and project, with an estimated API-equivalent cost.
Read from ~/.codex/sessions on this Mac. Cost is an estimated API equivalent, not what your plan charges. Illustrative data.
Connection
How does Headroom read Codex?
- Codex's local app serverHeadroom reads your limits through Codex on your Mac, read-only.
- Codex session logsYour history: tokens by model, reasoning effort and project.
- More ChatGPT accountsSign in with another account, or bring in the ones you saved with codex-auth.
Your Mac
-
Codex app serverYour limits, read-only -
~/.codex/sessionsCodex session logs -
KeychainHeadroom's own sign-ins
HeadroomReads locally.
Stores locally.
Stores locally.
What leaves your Mac
- ChatGPTAsked for your own limits. Nothing else.Limits only
- Headroom serversThere aren't any. No account to create.Never
- Analytics & trackingNone in the app. No telemetry.Never
- AI model callsYour work is never sent to a model.Never
01 / 09
How do I check my Codex usage limit?
Run /status in the Codex CLI to see the limits on your plan. Headroom shows the same limits in your Mac menu bar, with how much is left and the time until each one resets.
02 / 09
When does the Codex weekly limit reset?
Once a week, at the time Codex gives for your account. If your plan also has a 5-hour limit, that one resets when its 5-hour window ends. Headroom shows the time left until each reset, right in your menu bar.
03 / 09
What are Codex rate-limit reset credits?
Codex has rate-limit reset credits, and they expire. Headroom calls them banked resets and shows how many you have and when the next one expires, like “4 banked · next expires 2d 11h”.
04 / 09
What do “ahead” and “behind” mean in Headroom?
They compare what you've used with an even pace through the window. “9 ahead” means 9 percentage points less used than an even pace; “5 behind” means 5 more. The tick on a bar marks that even pace.
05 / 09
Can I track more than one ChatGPT account?
Yes. Sign in with another ChatGPT account, or bring in the accounts you already saved with codex-auth. Each keeps its own limits and resets, never pooled into one number.
06 / 09
Which account does the menu bar show?
It can show the account you're using now, so the reading in your menu bar matches the account you're working in.
07 / 09
Does Headroom need my OpenAI API key?
No. Headroom reads your limits through Codex's local app server on your Mac, read-only, and your history from Codex's session logs. Anything Headroom stores lives in your Keychain.
08 / 09
Does Headroom show my Codex token history?
Yes. It reads Codex's session logs on your Mac and shows tokens by model, reasoning effort and project, with an estimated API-equivalent cost. Your history stays on your Mac.
09 / 09
How much does Headroom cost?
Nothing while it's in beta. Beta testers get the Founding licence free when we launch; everyone else hears about pricing first on the list.
Give yourself some headroom.
Headroom is in a private beta. Leave your email and we'll send your invite as we let people in.