Amazon OpenSearch Service

Amazon OpenSearch Service is an AWS-managed service offering OpenSearch clusters.

OpenSearch is a distributed, community-driven, Apache 2.0-licensed, open-source search and analytics suite. OpenSearch Service reduces operational overhead, provides enterprise-grade security, high availability, and scalability, and enables organizations to deploy real-time search, analytics, and generative AI applications. This helps organizations accelerate innovation and improve operational efficiency rather than managing infrastructure.

AWS presents the option of fully managed OpenSearch Service clusters or automatic resource optimization with Amazon OpenSearch Serverless to efficiently scale vector workloads without incurring unnecessary costs.

• Managed Clusters - Users are charged for instance hours, storage, and data transfer. Pricing depends on the instance type and storage tier chosen.
• Serverless - Charges are for compute and storage separately. Compute capacity is measured in OpenSearch Compute Units (OCUs), which correspond to the CPU, memory, and I/O resources required to index data or run queries. Serverless is also covered by Database Savings Plans.