information-retrieval

PageIndex

+409

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

onyx

+226

Open Source AI Platform - AI Chat with advanced features that works with every LLM

factcircuit

+150

FactCircuit: an auditable claim-and-evidence verification loop with immutable provenance, staged checks, bounded retrieval, and reproducible evaluation.

haystack

+64

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.

unstructured

+45

Convert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding.

sie

+40

Open-source inference server and production cluster for all the models your agent needs.

weaviate

+25

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

FlagEmbedding

+20

Retrieval and Retrieval-augmented LLMs

neuml/txtai

+17

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