Both our free and tiered plans have word quotas for the AI Assistant, which reset each month.
Once you hit your word quota for the month, you will need to wait for your word quota to hit zero again at the start of the following month.
Track your word usage by clicking Manage Your Account from the Profile icon on the upper right corner of the page.
Select Billing to see your word usage.
You can also click Settings on the left-side menu and select Billing.
Voila! Check your word count any time you like to stay up to speed.