# 🔍 Semantic Similarity API

This project provides two interactive interfaces:
1. **Semantic Similarity Checker** - detects paraphrased or overlapping meaning between texts.
2. **AI Text Detector** - identifies whether a given sentence is likely written by AI.

## 🧠 Powered by:
- Sentence Transformers (MPNet, multilingual models)
- GPT-2 perplexity
- RoBERTa-based AI classification
- Gradio for front-end interaction

## ✅ Usage
Deployed on Hugging Face Spaces using Gradio SDK.