AI SaaS — RAG-Based Study Assistant

Build a production-ready AI SaaS product: a document Q&A assistant where users upload PDFs and chat with them. Full-stack: FastAPI backend + Next.js frontend + pgvector + OpenAI. Deployable, monetizable, portfolio-worthy.

advancedPythonFastAPINext.jsPostgreSQLpgvectorOpenAIStripeDocker

What you will build, step by step

  1. Product Scope & Architecture
  2. Document Processing Pipeline
  3. RAG Query Pipeline
  4. Subscription & Billing with Stripe
  5. Next.js Frontend & Deployment