, it is available in your production org now, but with known limitations. As a beta feature, Einstein Search is a preview and isn’t part of the “Services” under your master subscription agreement with Salesforce. Use this feature at your sole discretion, and make your purchase decisions only on the basis of generally available products and features.

Personalization is scheduled to go GA (Generally Available) in the next release with Natural language search and Actionable instant results, record previews, and recommended results scheduled to go GA in the first half of next year.