When you want to check Codex usage, the most important thing is to open the right page first.
Do not guess from memory. Check the current usage page and then look at the time window.
Start with the usage page
Open the account usage or billing page connected to your OpenAI account.
Look for the product, model, and time range. The useful number is not only total usage. It is also the reset window.
Separate short windows and weekly windows
Some limits feel confusing because the time windows are different.
A 5-hour window and a weekly window should be read separately. If you mix them, it is easy to think something is broken.
Bookmark the page
If you use Codex daily, bookmark the usage page.
This saves time when you are switching between planning, coding, and publishing work.
My rule
When usage feels strange, I check the page first, then decide whether to change model, wait, or split the task.
Original Japanese Article
This article is based on the Japanese post: Codexの使用量確認はここ｜最初に開くページと5時間・週の見方.
