Best Memory / RAG Tools (2026)
The top memory / rag tools on Flux, ranked by Flux Score and community signal. 24 tools compared — vote to move them up the board.
LangGraph
Stateful orchestration framework for agents
Exa
Search API built for AI
Pinecone
Managed vector database for RAG
Mem0
Memory layer for AI applications
LangChain
The framework for building LLM apps and agents.
Zep
Temporal knowledge-graph memory for AI agents (Graphiti).
Zvec
The SQLite of vector search — in-process, zero infra.
Letta (MemGPT)
The agent-memory framework from the MemGPT team.
Cohere
Enterprise-grade LLMs and retrieval for business.
Chroma
Developer-friendly open-source embedding database
Cognee
Memory and knowledge-graph layer for AI agents
DSPy
Programmatically optimize LLM prompts and pipelines
Filecoin
Decentralized storage network
Glean
AI-powered enterprise work assistant
Haystack
Production-ready orchestration for RAG and agent pipelines
Limitless
AI pendant and personal memory app
LlamaIndex
Data framework with first-class agent primitives for RAG-centric agents
Milvus
Open-source vector database for billion-scale search
Turbopuffer
Serverless vector + hybrid search on object storage
Weaviate
Open-source vector database with native hybrid search
Mastra
TypeScript framework for agents, workflows, RAG, and observability in one package.
Personal.ai
Personal AI that builds a long-form memory corpus from your data.
Qdrant
Open-source vector database for similarity search and AI memory storage.
Supermemory
Fast memory layer for AI with sub-300ms recall.