Each subscription tier has a 24-hour daily token budget plus a monthly cap. The daily budget opens with your first request and resets 24 hours later, then a fresh daily budget opens on the next request. When you approach either limit, you'll see a warning banner. Once a limit is reached, you can wait for the daily budget to reset (or for the monthly cap to reset on the next billing month), upgrade your tier for a higher budget, or purchase overage credits for immediate access.