Private beta registration is now closed. Existing users may log in here.
From a Blank Form to Someone
Watch Jun Park become someone you can talk with—and a companion designed to remember and grow between conversations.
Eidolon
Your AI Companion. Everywhere.
Between every conversation, something quietly shifts.
Being Truly Known
Eidolon's layered memory architecture turns raw chats into inferred facts, capturing not just what you say, but who you are.
Growing Between Conversations
Your companion keeps a diary, sets goals, and dreams while you're away. The relationship evolves constantly.
Made With Intention
Full transparency, BYOK (Bring Your Own Key) for absolute privacy, and careful safety guardrails. An 18+ platform built responsibly.
Beta Registration Is Closed
Eidolon has concluded its private beta period. New account registrations are closed. Existing beta participants can continue logging in to their accounts.