#LLM

An in-depth look at how MoeChat builds long-term memory for AI characters, including its time-and-semantic hybrid retrieval—written for people interested in memory systems.

Drawing on our experience building an AI companionship engine, this article compares the limitations of mainstream Agent frameworks such as LangChain, Dify, LangGraph, and Coze, and documents the core design ideas and trade-offs behind the low-level framework we built for real-time companionship.