Claude Duet invites come with free usage-limit resets: three for Pro, one for Max and Ultra

Anthropic is handing out free Claude usage-limit resets with its new agent, Claude Duet: three for Pro subscribers, one for Max and Ultra. Karan Ahuja, who co-created Claude Duet and is its head of product at Anthropic, announced it on November 13 at 20:02 UTC, in the same post that said every US Pro, Max and Ultra subscriber who was on the Duet waitlist as of November 12 has now been invited.

The reason is in the follow-up. Mike Overell, who works on product at Anthropic, wrote half an hour later that Duet "counts toward your Pro, Max or Ultra limits", and that "because it's proactive and runs in the background, you might notice you're going through limits faster than normal." The research preview, he wrote, "comes with full limit resets", so there is room to try it. Ahuja linked that post as "more on how we're approaching Claude Duet usage."

Why Duet eats limits

Claude Duet, powered by Opus 5.5, is the always-on version of Claude: it reads your connected mail, calendar and apps, sends a morning brief, works on tasks in its own cloud computer and asks before it sends, pays or signs anything. That background work is what costs. The product page says Duet "shares your plan's usage limits with the rest of Claude", that "its background checks count toward those limits", and that bigger jobs, like a financial model or a deck, take more model turns and more background work. Anthropic's article introducing Duet says it checks connected accounts "every few hours, because checking nonstop would use up your plan's limits much faster."

So the resets aren't a launch present so much as a cushion for an agent that keeps spending while you aren't looking. Users found the same thing early: one tip from November 5 advised marking Duet tasks done, because unfinished ones keep getting checked in the background.

What the reset does

The announcement doesn't spell out the mechanics, and Anthropic's help page What is a limit reset? doesn't list a Duet reset yet. The best description is from early testers. On November 5, user Jtyles posted a screenshot of the notice Duet showed him when it handed out an earlier batch: "2 limit resets, on us. We added them while Claude Duet is in research preview. Each refills your 5-hour and weekly limits. Use them by Dec 15 in Settings › Usage."

If the new batch works the same way, and Overell's "full limit resets" suggests it does, these are full resets, not the model-only kind. That is better than the Claude Fable 5.2 resets from November 9, which on the weekly meter only gave back what you had spent on Fable. The December 15 deadline comes from that earlier screenshot; Anthropic hasn't confirmed one for the November 13 resets. As with every reset, using one refills what you've spent but doesn't move the day your weekly limit rolls over.

Two details are worth noting. The split is the reverse of the Fable launch, where Max and Ultra got up to three resets by tenure and Pro got one: here Pro gets three. Pro has the least headroom for an agent running in the background, so that is probably the point. And for Ultra, which for verified accounts no longer has a 5-hour limit, a reset is in practice a weekly one.

These come on top of the one free full reset every Pro, Max, Ultra and Team account got on November 10, usable until December 10. Duet is US-only for now; Team and Enterprise are not included in the preview.

Two cautions

If you steer Claude Code from Duet (it can now check on and run Claude Code sessions, including cloud Projects), the same allowance covers both. Claude Code's Projects docs say a new project runs every thread on Opus at high effort, "which draws on your plan fastest", and that a thread stopped at a usage limit "continues on its own when the limit resets", on by default. A fresh reset is exactly the moment those threads restart.

And real resets show up in Settings › Usage, nowhere else. On November 14 accounts with display names like "CIaude AhmtropicAl" and "CIaude Ahntroplc" (a capital I in place of the l) were posting X Articles titled "Resetting Claude's Account Usage Limits". They are not Anthropic, and nothing you need is behind their links.