🏛️ LexAI — AI-Powered Legal & Tax Research Assistant

Built for the Indian Servers AI Contest 2026

LexAI is a Retrieval-Augmented Generation (RAG) system that answers legal and tax queries with accurate, citation-grounded responses drawn from real legal corpora — no hallucinations, no guesswork.

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✨ Features

• 🔍 Semantic Search using FAISS vector index + sentence-transformers (all-MiniLM-L6-v2)
• 🤖 AI Answers powered by Google Gemini API
• 📎 Citation-aware responses — every answer references the exact legal section
• 📚 Multi-corpus support — query across multiple legal documents simultaneously
• 🌐 Clean Web UI — Flask backend + Vanilla HTML/CSS/JS frontend

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📚 Legal Corpora Supported

Document	Jurisdiction
GST Act 2017	India
Income Tax Act 1961	India
IFRS 16	International
UAE Corporate Tax Law 2023	UAE

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🛠️ Tech Stack

Layer	Technology
AI Model	Google Gemini API
Embeddings	sentence-transformers all-MiniLM-L6-v2
Vector Store	FAISS
Backend	Flask (Python)
Frontend	HTML · CSS · Vanilla JavaScript

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🏗️ Architecture

User Query
    │
    ▼
Sentence Embedding (all-MiniLM-L6-v2)
    │
    ▼
FAISS Similarity Search → Top-K Legal Chunks
    │
    ▼
Google Gemini API (RAG Prompt + Context)
    │
    ▼
Citation-Aware Legal Answer

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🚀 Getting Started

git clone https://github.com/Prabhas125/LexAI.git
cd LexAI
pip install -r requirements.txt
# Add your GEMINI_API_KEY in .env
python app.py

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🏆 Contest

Built for the Indian Servers AI Contest 2026 — a competition focused on building AI-powered real-world applications.

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📄 License

MIT License