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---
title: RagBot
emoji: 📚
colorFrom: indigo
colorTo: blue
sdk: streamlit
sdk_version: "1.32.0"
app_file: app.py
pinned: false
---
Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
---
# 📚 RagBot: Chatbot + Document QA
This app lets you chat with any uploaded PDF and ask questions — either from the document or general ones — powered by **local open-source models**. Combines RAG with chatbot UX.
## 🚀 Features
- Upload PDFs and chat with them
- General knowledge + document-specific answers
- Accurate retrieval using FAISS and sentence-transformers
- Clean, sticky UI with full chat history
- Runs 100% free using lightweight Hugging Face models
## 🧠 Powered By
- 🧠 Embeddings: `sentence-transformers/paraphrase-MiniLM-L6-v2`
- 📖 QA Model: `distilbert-base-cased-distilled-squad`
- 🧰 Backend: Streamlit + FAISS + Transformers
## 💡 How It Works
1. Upload your PDF
2. App chunks & embeds the text
3. Uses FAISS to retrieve context
4. Hugging Face model generates answers:
- Uses the doc context if available
- Falls back to general QA
- Refuses to answer if uncertain
## 📦 Dependencies
```bash
pip install streamlit faiss-cpu sentence-transformers transformers PyMuPDF
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