5 小时窗口怎么算？

The five-hour limit determines how much usage is included in each window. A new window starts when you send your first message in Work or Codex after the previous window ends.

You may reach the five-hour limit before five hours have passed, even if you still have weekly usage remaining. Check Settings → Usage for your current allowance and reset times. Limits vary by plan.

These estimates are not fixed message limits; check your usage dashboard for current limits and reset times.

Premium seats have 5x the included usage of Standard seats, with the benefit of no 5-hour limit so users can maximize uninterrupted session time

Your session-based usage limit will reset every five hours.

Every plan has usage limits that reset on a rolling five-hour session window, and paid plans add weekly limits on top.

How much you can do depends on the length and complexity of your conversations, the model you choose, and the features you use, so there's no fixed message count.

Usage counts against the session and weekly allowances at the same time. A single burst of heavy activity, such as a large workflow fanout, can exhaust the weekly allowance before the session window resets.

Claude Code drops a window once its resets_at time passes.