Module 1 · How agents remember · Lesson 4
Memory frameworks and benchmarks
What Mem0, Letta, Zep with Graphiti, and LangMem actually store and do, how LoCoMo and LongMemEval measure memory, and how to read a vendor's benchmark claim before you build on it.
By the end of this lesson you can
- Describe the write, update and retrieval path of Mem0, Letta, Zep/Graphiti and LangMem, and the memory types each one covers
- Explain what LoCoMo and LongMemEval test, and what each leaves out
- Critique a published memory benchmark result, naming at least four ways it can mislead
- Compute the sampling uncertainty of a benchmark score and judge whether a reported gap is meaningful
- Choose between building on your own store and adopting a memory service for a production agent fleet