Vibe-coded AI Studio apps with Firestore, Firebase, Cloud SQL

Google announced at I/O 2026 that AI Studio now supports full-stack vibe coding with expanded database options and a no-credit-card on-ramp. New users can deploy up to two full-stack apps to the Google Cloud Starter Tier for free, using Cloud Run, Firestore (non-relational), or Cloud SQL for PostgreSQL (relational, coming next month), with Firebase Auth handling user login. The AI agent automatically provisions databases, generates schemas, executes SQL, sets up authentication, and deploys Firestore Security Rules based on natural language prompts. Apps can also connect to Google Workspace tools like Sheets, Calendar, and Gmail via Firebase Auth's Google Sign-In flow.