#semantic-search

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.

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

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​.

MTEB: State-of-the-art evaluation of embeddings across languages and modalities

Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.

A lightweight, lightning-fast, in-process vector database

Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.

Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph + autonomous consolidation.

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