Ardent provides database sandboxes for AI agents and developers, enabling rapid cloning of PostgreSQL databases of any size in under six seconds. Clones use copy-on-write technology for storage efficiency and autoscale to zero when idle, operated through a Git-like CLI interface, so teams can safely test database code without production risk. The company was founded by Vikram Chennai, a former ML engineer with a CS background from Cornell. Ardent is part of Y Combinator's Spring 2026 batch.