Neon is a serverless Postgres backend platform that gives developers a single place for database, authentication, object storage, compute functions and an AI gateway. It is built on Lakebase Postgres and scales automatically, allowing branching and instant operations for apps and agents. What sets Neon apart is its branch‑able architecture that lets every idea run in an isolated copy of the entire backend, and its autoscaling compute that matches CPU and memory to load in real time. The platform also offers a free tier with 100 projects and no fixed fees for security or AI usage.