Cognee Open-Source Graph Database Aims to Give AI Agents Persistent Memory

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Cognee is an open-source graph database engine built to provide AI agents with long-term, persistent memory across conversations. It processes text to extract entities such as people, products, and intents, storing them in a connected graph structure that supports both semantic and graph-based search. The tool can link related topics over time, allowing AI systems to recognize patterns in a user's interests without requiring repeated context-setting. Cognee supports multiple database backends including SQLite, Neo4j, and LanceDB, and can be self-hosted at no cost. However, the project remains in early development at version 0.1.x, with noted limitations including slow memory ingestion, frequent API changes, and roughly 72% accuracy in relationship extraction.

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