Raptor alternatives for AI agents.

📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG

Open-source framework for building AI-powered apps in JavaScript, Go, and Python, built and used in production by Google

The AI search platform

The open document intelligence platform for builders and hackers - DMS for the agentic world

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

[EMNLP2025] "LightRAG: Simple and Fast Retrieval-Augmented Generation"

💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

Meet Ava, the WhatsApp Agent

An LLM-powered advanced RAG pipeline built from scratch

AutoMem is a graph-vector memory service that gives AI assistants durable, relational memory:

pingcap/autoflow is a Graph RAG based and conversational knowledge base tool built with TiDB Serverless Vector Storage. Demo: https://tidb.ai

AI-native HTAP database with Git-for-Data and built-in vector search, serving as the data and memory backbone for intelligent agents and applications.

Demystify RAG by building it from scratch. Local LLMs, no black boxes - real understanding of embeddings, vector search, retrieval, and context-augmented generation.

Postgres with GPUs for ML/AI apps.

Building blocks for rapid development of GenAI applications