What counts toward Codex usage?

Included Codex work on your plan counts toward the active windows. Limits vary by plan, model, and task complexity. Message counts published as ranges are estimates, not your private remaining quota.

When does the Codex usage limit reset?

The 5-hour and weekly windows reset on the timestamps shown in Settings → Usage or /status. There is no single public clock for every account.

How Do Codex Usage Limits Work?

Q: What is the Codex usage limit?

Codex may apply a rolling 5-hour usage window and a weekly allowance. Where both apply, you need remaining capacity in both. Exact remaining usage is in Settings → Usage or /status.

Codex is not one daily quota. Most accounts hit a 5-hour window, a weekly allowance, or both — and each has its own reset time.

What is the Codex usage limit?

Codex usage limits are the included 5-hour and weekly allowances on your ChatGPT plan. If both apply, you need remaining capacity in both windows to keep working. Open Settings → Usage or run /status for the numbers on this account.

5-hour limit

The five-hour window is rolling. A new window starts when you send the first message after the previous window ends. You can reach it before five hours have passed. This is the limit that usually stops a coding session mid-day.

If you are being blocked during a session rather than for the rest of the week, see the Codex 5-hour limit guide.

Weekly limit

The weekly allowance is the longer cap. After several heavy days, a 5-hour refresh will not help if weekly remaining is already 0. The weekly reset timestamp is account-specific.

If the 5-hour window has refreshed but you are still blocked, you may have reached your Codex weekly limit.

What counts toward usage?

Included Codex work on the plan that owns the window.
Heavier models and longer agentic turns consume allowance faster.
Published “messages per window” figures are estimates, not a private remaining counter.
Credits, upgrades, or a redeemed banked reset are separate from the included windows.

AI Limit cannot see what your last turn cost. Only Settings → Usage / /status can.

When does it reset?

There is no universal Codex reset time. Personal windows reset on the timestamps in the usage dashboard. Public global or banked resets are a different event.

Direct answer for searchers: when does Codex reset? You can also check the latest public Codex reset or browse Codex reset history.

How to check remaining usage

ChatGPT → Settings → Usage (desktop, web, or CLI).
In an active Codex CLI session, run /status.
Read which window is empty and the next reset time for this workspace.

How-to: check remaining usage. Tracker vs dashboard: Codex usage tracker.

AI Limit

Track Codex resets with AI Limit

Public 5-hour / weekly reset announcements on iPhone. Private remaining usage still lives in Settings /status.

Track with AI Limit → Open usage tracker

On desktop?
Scan with your iPhone camera to open AI Limit in the App Store.

Related Codex limit guides

This page answers “how do Codex usage limits work?”. The cluster page Codex Usage Limits Explained maps the same model to public resets and the app. Plan pages: Plus · Pro · Work. If the banner says you are out, see limit reached.

Track Codex resets with AI Limit

AI Limit monitors public Codex reset signals and sends an alert directly to your iPhone. It does not read your private ChatGPT / Codex remaining usage.

How Do Codex Usage Limits Work?

What is the Codex usage limit?

5-hour limit

Weekly limit

What counts toward usage?

When does it reset?

How to check remaining usage

Track Codex resets with AI Limit

Related Codex limit guides

Track Codex resets with AI Limit

Codex usage & reset guides