Grok: X Premium Subscription Not Recognized

Grok access requires an active X Premium or X Premium+ subscription, or a direct Grok subscription at grok.com. Access is tied to account-level subscription verification — if billing lapses, the subscription is not active, or the subscription has not yet synced to the Grok access system, users are denied access or find the Grok button missing entirely from the X app. This is distinct from infrastructure-level high-demand errors.