OpenAI's acquisition of Rockset and the planned discontinuation of its services by September 2024 has prompted the need for Rockset users to find a new database solution, with Imply Polaris emerging as a strong alternative. Built on Apache Druid, Polaris offers a managed database-as-a-service designed for high concurrency and low latency queries at a petabyte scale, making it ideal for real-time analytics applications. It supports ANSI SQL, integrates seamlessly with Kafka and Kinesis, and provides features like infinite zoom and asynchronous queries, ensuring consistent performance and detailed data views. Although Polaris lacks full-text and vector search capabilities, it excels in handling fast aggregations across large datasets, complementing transactional databases. The transition from Rockset to Polaris is streamlined, involving data migration to S3 and ingestion into Polaris, with support for rewriting queries in Druid SQL. Polaris's open-source foundation ensures long-term access to core technology, and its extensive SQL support and automation reduce the learning curve and developer workload, making it an attractive option for organizations needing to maintain subsecond response times and scalability.