When to choose on-premises vs. cloud for vector databases (opens in new tab)

For most of the last decade, the on-premises vs. cloud debate felt settled. Cloud computing was cheaper, faster, and easier to adopt. Enterprises moved workloads from on-premises infrastructure to public cloud services, relying on major cloud providers to handle scalability, maintenance, and security. In 2026, that assumption is breaking, and cracks are showing up in legal reviews, financial projects, and SLA negotiations. Enterprises are facing an increasing pressure for data residency regul...