Amazon OpenSearch Serverless supports disk-based vector search
Action Required
Organizations can now perform vector searches more cost-effectively, enabling new use cases and improving the performance of existing applications.
AI Impact Summary
Amazon OpenSearch Serverless now supports disk-based vector search, which significantly reduces operational costs for vector workloads in low-memory environments. This capability allows users to leverage vector search without the high costs associated with traditional memory-intensive deployments. This is a key enhancement for applications requiring efficient similarity searches, such as those in RAG (Retrieval-Augmented Generation) workflows.
Affected Systems
- Date
- 18 Sept 2025
- Change type
- capability
- Severity
- medium