What's this about?
ChatGPT's Work mode can now build and publish real websites and full-stack apps — persistent data, file uploads, auth, analytics, instant share links — without leaving the chat. Simon Willison reverse-engineered the part OpenAI doesn't advertise: sites deploy onto Cloudflare Workers with SQLite persistence.
What exactly is "full-stack" here?
Not just a static page: a running app with a database (so it remembers things), login control (so you choose who gets in), and API connections. The pitch is that the whole build-deploy-host pipeline — normally several tools and accounts — collapses into a conversation.
What's the community saying?
390 + 295 likes
- Vibe-coding platforms (Vercel v0, Replit, Lovable) just got their most direct big-tech competitor — distribution is ChatGPT's 800M users.
- Willison's dig doubles as a complaint: OpenAI's opacity about the underlying platform makes it hard to reason about limits, pricing, and lock-in.
- The Cloudflare detail is a quiet alliance signal — OpenAI hosting user apps on a rival cloud to the hyperscalers funding it.