AI-Tutor

# 🧑‍🏫 AI Tutor (Nemo)

[![Python](https://img.shields.io/badge/python-3.10+-blue.svg)](https://www.python.org/)  
[![LangChain](https://img.shields.io/badge/LangChain-0.2+-orange.svg)](https://www.langchain.com/)  
[![LangGraph](https://img.shields.io/badge/LangGraph-agents-purple.svg)](https://www.langchain.com/langgraph)  
[![LangSmith](https://img.shields.io/badge/LangSmith-monitoring-red.svg)](https://www.langchain.com/langsmith)  
[![Gradio](https://img.shields.io/badge/Gradio-4.x-green.svg)](https://www.gradio.app/)  
[![FAISS](https://img.shields.io/badge/VectorDB-FAISS-yellow.svg)](https://faiss.ai/)  
[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](LICENSE)  

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## 📖 Project Overview

**AI Tutor (Nemo)** is an intelligent, interactive tutor built for **science and technology students**.
It combines **Large Language Models (LLMs)** with **agentic workflows** to provide two core capabilities:

-   **💬 PDF Tutoring (RAG)**: Answers questions from uploaded textbooks/notes (retrieval mode).
-   **🎥 Video Summarization**: Transcribes and summarizes uploaded video files or YouTube links.

This system is designed to **simulate a personalized AI tutor**: patient, accurate, and adapted to a student’s multi-modal learning materials.

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## 🎥 Demo Video Summarizer(New feature)
https://github.com/user-attachments/assets/4e5c3307-2cc4-4eee-8eae-d26be04b7322

## 🎥 Demo PDF Tutor(old feature)
https://github.com/user-attachments/assets/87b4eacf-5509-4cf5-afe1-36eec3fa2b2b

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## ⚡ Key Features

### PDF Tutoring (RAG)
-   🤖 **LLM-powered tutoring** using Google Generative AI (Gemini).
-   🧠 **Context-aware agents** with **LangChain** and **LangGraph** to manage reasoning steps.
-   📄 **PDF knowledge ingestion**: Extracts content, splits it, and stores embeddings in **FAISS** for retrieval.
-   📐 **Math rendering with LaTeX**: All formulas are displayed cleanly in Mark