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

The #1 AI Harness for Building Resumes, PDFs, Cover Letters & more, locally with 100+ LLMs support.

[MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.

neuml / txtai

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

zilliztech / GPTCache

Semantic cache for LLMs. Fully integrated with LangChain and llama_index.

superlinked / sie

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

qdrant / fastembed

Fast, Accurate, Lightweight Python library to make State of the Art Embedding

Zleap-AI / SAG

A new SOTA for RAG — an original retrieval architecture and an open-source knowledge base for humans and agents.

qdrant / qdrant-client

Python client for Qdrant vector search engine

superlinear-ai / raglite

🥤 RAGLite is a Python toolkit for Retrieval-Augmented Generation (RAG) with DuckDB or PostgreSQL

zilliztech / VectorDBBench

Benchmark for vector databases.

Raudaschl / rag-fusion

RAG-Fusion: multi-query generation + Reciprocal Rank Fusion for better retrieval-augmented generation. Includes evaluation harness with NFCorpus/BEIR.

nuclia / nucliadb

NucliaDB, The AI Search database for RAG

EverMind-AI / SkillCorpus

Open-source infrastructure that turns scattered SKILL.md files into curated, retrieval-ready agent-skill corpora—with retrieval and evaluation tooling included.

winstonkoh87 / Athena-Public

Local-first memory, decision engine, and governance harness for AI agents — portable across IDEs. Own the state. Rent the intelligence.

B0yko / tern

Local AI search for podcast and video archives on Apple Silicon: Whisper speech, Apple Vision OCR and SigLIP-2 visual search fused into one ranked list, with a trim editor and FCPXML export. FastAPI, vanilla JS, Tauri. Source-visible, all rights reserved.

parqdb-io / parqdb

Billion-scale embedded vector database built entirely on Parquet and Arrow.

arnsri33 / embedflow

Zero downtime embedding upgrades

makralabs / makra

Makra is a memory layer between the web and your AI agents. It serves real-time structured data from the open web at the cost of a vector search.