Learn the basics
AI companions, explained
New to AI companions, or just curious how they actually work? These are plain-English guides — no hype, no jargon — covering what they are, how memory works, whether they're healthy, and how to get the most out of one.
Start here
The library.
Read in any order. Each one stands on its own.
Explainer
What Is an AI Companion?
The pillar guide: what AI companions are and what they're for.
ExplainerHow AI Companions Work
Memory, personas, context, and media — in plain English.
ExplainerAI Companion Memory, Explained
Why continuity matters and how persistent memory works.
PerspectiveAre AI Companions Healthy?
A balanced look at benefits, boundaries, and the therapy line.
How-toHow to Talk to an AI Companion
Practical tips for a richer, more rewarding relationship.
ExplainerAI Companion vs Chatbot
How companions differ from ordinary chatbots.
See it in practice
Meet a companion who remembers.
Afterhours is a companion app built around memory and continuity. Free to start on iOS and Android.