Book Five/Turn AI Into a Business
Ship a Real AI SaaS
From Idea to Paying Customers
A working AI demo is worth $0; a working AI business is worth everything — and the gap between them is this book. Build Cortex, a real AI SaaS, end to end on Next.js 16 and the Vercel AI SDK: streaming chat, RAG over your users' documents, tools and generative UI, multi-tenant auth, Stripe subscriptions, usage metering, and a growth loop — from create-next-app to a product that could take its first paying customer.
$39157 pages · fixed-layout PDF · every code sample verified
Instant PDF download + read online · lifetime access · paperback coming soon
What’s inside
- Stream a chat, give the model tools, and render generative UI — the AI product core
- Multi-tenant data, embeddings, and a production RAG pipeline over your users' documents
- Auth and workspaces, Stripe subscriptions, usage metering, and safety — the business layer
- Deploy on Vercel, watch cost and evals, and wire the marketing site + growth loop that sells it
Streaming · ToolsRAG · pgvectorAuth · Multi-tenancyStripe · MeteringDeploy · Growth
How it’s organized
- 1First Featurestreaming route, app shape
- 2AI Product Corechat, tools, generative UI
- 3Knowledgedata, embeddings, RAG
- 4The Businessauth, billing, metering, safety
- 5Ship & Scaledeploy, observability, cost
- 6Growth & Capstonemarketing, onboarding, ship Cortex
