› Claude Duet is in a US-only research preview, and the only way in is a waitlist.
› Anthropic's help center lays out the steps, and there is one pitfall that can lock you out even after you get an invitation: the email address.
› We have not tested Duet ourselves - we have no access - so this guide follows Anthropic's help center and announcement.
› For what Duet does, see our Claude Duet guide.