updated September 21, 2026
Claude Code usage limits, explained
Claude Code on Pro and Max has three kinds of limits: a 5-hour session window that starts with your first message, a weekly window across all models, and separate weekly windows for specific models such as Fable, Opus and Sonnet. Each one is a percentage with its own reset clock, and whichever hits 100% first is the one that stops you.
The three windows
- Session (5 hours). Opens with the first message you send and closes five hours later. Everything you do in Claude Code and on claude.ai in that time counts against it. When it fills up you wait for the reset; when it resets you get the whole window back.
- Weekly, all models. A rolling seven-day window that covers everything you send, whichever model handles it. It was added on top of the session window so that very heavy users cannot run flat out around the clock.
- Weekly, per model. Some models get their own seven-day window on top of the shared one. Fable is the clearest case: a heavy Fable session can exhaust the Fable window while the all-models window still has plenty left, and you can keep working on Sonnet.
What counts against them
Every request counts, weighted by how much work it is. Long conversations cost more than short ones because the whole context is re-read on each turn. Large files, big diffs and tool-heavy agent loops burn faster than a quick question. Bigger models burn the shared windows faster than smaller ones, and the per-model windows only move when that model is used.
Anthropic does not publish the limits as token counts, and they change with demand. What it does publish, through the same usage endpoint the Claude Code CLI reads, is a percentage used for each window and the moment each one resets. That is the number to plan around.
Why it feels random
The windows are rolling, not tied to the clock. Your session window started whenever you first spoke to Claude today, so its reset lands at an odd time like 3:47 PM. Your weekly window started days ago, on whatever day you first used Claude that week, so it does not reset on Monday. And because three windows run at once, the message that stops you could be any of them.
The fix is to look at all three at the same time, with their reset times, instead of guessing from the one warning message Claude shows you.
Where to see where you stand
- In Claude Code, the /usage command shows the current windows and their resets.
- On claude.ai, Settings shows usage for the account you are signed into.
- AI Cooldown shows every window for every Claude and Codex account you connect on one page, with a live countdown to each reset and a plain Go or Wait verdict. It reads the same official usage endpoint the CLI uses, so the percentages are Anthropic's, not estimates.
What to do when you hit a limit
- Check which window it is. A per-model limit means switching model, not stopping.
- If you have a second account, check whether it has room before you wait. Limits are per account.
- If the session window is the problem, the reset is at most five hours away and usually much less. The weekly windows are the ones worth pacing: divide what is left by the days until the reset and you have a daily budget.
- Start the day's session window with a small message when you sit down, so the five-hour clock is already running before you do heavy work.
see your exact numbers
Want the exact reset for your accounts?
Connect your Claude and Codex accounts to AI Cooldown and get every window with a live countdown, which one is limiting you, and which account to use next. Free, open source, and it reads the same official usage endpoints the CLIs use.
Connect an accountQuestions people ask
- Does Claude Code share limits with claude.ai?
- Yes. The session and weekly windows belong to the account, and Claude Code, the desktop app and claude.ai all draw from the same ones.
- Are the limits the same on Pro and Max?
- No. Max plans come with roughly five or twenty times the Pro allowance in each window, which is why they are labelled Max 5x and Max 20x. The windows and reset rules are the same.
- Does the weekly limit reset every Monday?
- No. It is a rolling seven-day window that resets seven days after it started, at whatever time that was.
- Can I buy more usage when I hit a limit?
- Anthropic has offered paid extra usage on some plans. Check the usage settings for your account; if it is available, it appears there when a window is exhausted.