1/n Group chats with end-to-end encryption can be designed in many ways, each tailored for a specific number of participants and level of security. If we regard the security of one-on-one chats in Keychat as perfect, scoring 100, and the security of large group chats without end-to-end encryption as nonexistent, scoring 0, we can map out where the five identified end-to-end encryption group chat models fall in terms of group size and security on a diagram as shown below: