AI Personal Assistant

Cross-platform digital assistant with real-time chat, PDF and image processing, document Q&A, and user authentication. Powered by LangGraph and Groq LLM.

React NativeExpoTypeScriptFastAPILangGraphGroq LLM

What it does

Key features

Real-time conversational AI chat powered by Groq LLM for ultra-low latency responses
PDF ingestion — upload documents and ask questions answered from document context
Image processing — send photos for visual analysis and description
Document Q&A — RAG pipeline retrieves relevant passages before answering
Cross-platform — one React Native + Expo codebase for iOS, Android, and web
LangGraph stateful agent — maintains conversation context across multi-turn sessions

Under the hood

Architecture

Mobile / WebReact Native + Expo + TypeScript — unified iOS, Android, web app

BackendFastAPI — chat endpoint, file upload, RAG pipeline, JWT auth

AI AgentsLangGraph stateful agent — tool-calling for PDF/image tools, Groq LLM

RAGSentenceTransformers embeddings + FAISS / pgvector — chunk retrieval

Interested in work like this?

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