people · May 22, 2026

CrewAI Ships Most Complete Native Memory System Among Open-Source Agent Frameworks

Mem0 published a comparison on May 20, 2026, noting CrewAI ships the most complete native memory system among LangGraph, AutoGen, CrewAI, and LangChain. CrewAI uses a unified Memory class with composite scoring combining semantic similarity, recency, and importance at retrieval time. The default backend is LanceDB stored at ./.crewai/memory with deduplication at a 0.85 cosine similarity threshold. This architecture prevents exact and near-duplicate memories from accumulating and represents a meaningful improvement over raw vector stores for role-based task delegation in CrewAI crews.