RAG
Retrieval-augmented generation, vector stores, indexers.
6 tools
Pinecone
FeaturedRAG
8.8
Managed vector database for production-scale similarity search.
Freemium· Free starter; pay-as-you-gomanaged vector DBproduction RAG
LlamaIndex
FeaturedRAG
8.7
Data framework for connecting LLMs to your data.
Freemium· Open source; LlamaCloud paidRAGdata ingestion
Weaviate
RAG
8.4
Open-source vector DB with hybrid search and modules.
Freemium· Open source; cloud from $25/moself-hosted RAGhybrid search
LangChain
RAG
8.3
The broad LLM application framework — chains, agents, retrievers.
Freemium· Open source; LangSmith paidgeneral LLM appsRAG
Vespa
RAG
8.2
Yahoo's open-source search engine with vector + sparse retrieval.
Freemium· Open source; Vespa Cloud paidlarge-scale searchranking
Chroma
RAG
8.1
Embedded, developer-friendly vector store for Python.
Freemium· Open source; cloud paidprototypingembedded RAG