Superhuman is a premium email client built around speed, with AI features that triage your inbox by importance, summarise long email threads into a single paragraph, and draft contextually appropriate replies in your voice. Its keyboard-first design and near-instant performance make it the preferred email tool for executives and founders who receive high email volumes and need to reach inbox zero efficiently. The AI layer adds intelligence on top of an already optimised email workflow rather than replacing it with a chatbot interface.