---
title: Lumen RAG
emoji: 🔦
colorFrom: blue
colorTo: indigo
sdk: gradio
sdk_version: "6.20.0"
app_file: app.py
short_description: Transparent, evaluated hybrid RAG demo
pinned: false
license: mit
---

# Lumen RAG — live demo

Upload documents, ask questions, and watch retrieval quality (recall@k, MRR,
nDCG@k) render live from the eval harness. Runs 100% offline on a
deterministic hashing embedder — no API key required.

Source: https://github.com/WickTech/lumen-rag