Essays
Featured
Three Memory Architectures for AI Companions
A walkthrough of three memory architectures — pgvector RAG, LLM-managed scratchpad, and filesystem-based agent context — and why the hardest problem is knowing what to remember.
Ege Ozgirin
AI Companions Are the Next Interface
Why conversation will replace forms, dashboards, and search bars.
How to Build Realistic AI Companions
Memory, personality, and the technical decisions that make characters feel real.
Adding Open-Ended Conversations to Your Products
What it takes to move from scripted flows to actual conversation.