RAG FiT alternatives for AI agents.

🍁 Sycamore is an LLM-powered search and analytics platform for unstructured data.

YouTube Full Text Search - Search all of YouTube from the command line

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

Research project. A Memory solution for users, teams, and applications.

Unify Efficient Fine-tuning of RAG Retrieval, including Embedding, ColBERT, ReRanker.

MTEB: Massive Text Embedding Benchmark

WikiChat is an improved RAG. It stops the hallucination of large language models by retrieving data from a corpus.

Optimized LLM-Powered Data Processing: up to 1000x speedups with fast, accurate query processing, that's as simple as writing Pandas code

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

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

Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents instant retrieval and long-term memory.

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​.

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

Retrieval and Retrieval-augmented LLMs

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

🔎 SimilaritySearchKit is a Swift package providing on-device text embeddings and semantic search functionality for iOS and macOS applications.