Alternatives to GraphRAG

Open-source lakehouse format for multimodal AI with hybrid search.

Ontology-first Graph RAG platform turning messy knowledge into reusable packs

Open-source RAG engine that turns messy documents into a trustworthy context layer for AI agents, with ETL, hybrid search and agentic retrieval.

Open-source CLI that turns 18 source types into AI skills and RAG knowledge for 22 AI platforms.

Practical guides and code for building AI search with Elasticsearch.

Open-source content intelligence engine for CPU-only document extraction

Open-source ColPali models, ViDoRe benchmarks and cookbook code for page-level visual document retrieval and multimodal RAG.

RAG API platform with hybrid search & pre-built connectors

Open-source protocol suite for standardizing LLM, vector, graph, and embedding infrastructure.

Open-source vector database for billion-scale AI similarity search and RAG

Open-source multimodal lakehouse for AI data curation, feature engineering, search, and training.

pgvector adds open-source vector similarity search to Postgres so you can store embeddings next to your relational data.

Vespa AI is an open-source search platform that unifies vector, text, and ML ranking at scale.

Open-source, serverless vector search built on object storage that claims up to 10x lower cost.

Open-source distributed SQL database with vector search, ACID transactions, and HTAP for AI agent workloads.

Open-source real-time SQL analytics, full-text search, and vector database for AI.

Local-first LLM wiki, knowledge graph & RAG knowledge base with CLI and desktop app.

Open-source, cloud-native data warehouse in Rust unifying analytics, vector search, and full-text search on object storage.

Zvec: open-source, in-process vector database with sub-millisecond search at billion scale.

Open-source incremental data framework for AI agents, processing only deltas for always-fresh context.

High-performance Knowledge Graph engine for AI, LLMs, and GraphRAG

One universal database engine that fuses vector, graph, document, columnar, key-value, and full-text search behind a single SQL query.

Self-hosted node software for the OriginTrail Decentralized Knowledge Graph — verifiable, AI-ready data anchoring.

A declarative logic runtime that embeds reasoning into AI systems with a built-in knowledge graph.

Open-source PDF-to-vector pipeline for RAG in one command.

Open-source context retrieval layer grounding AI agents in real-time data from your apps and databases.

Fully managed vector database and knowledge platform for agentic AI retrieval

In-memory graph database for real-time GraphRAG and AI memory

API-first document parsing that turns 20+ formats into structured JSON for AI agents and RAG pipelines.

Lightweight ColPali-based image retrieval for cloud-native document search.