Rockset is a database platform that provides efficient search and real-time analysis for large-scale data. It supports indexing of vector, text, geospatial, and JSON data, enabling a mixed search architecture, and measures end-to-end latency through streaming data ingestion and high QPS workloads. Key advantages of Rockset include real-time indexing, millisecond-level SQL queries, rapid development of new features, reduced compute and storage costs, and the flexibility of not requiring ETL, denormalization, managing sharding, indexing, or clusters.