Announcing Amazon S3 Vectors – cloud object storage with native support to store and query vectors
Amazon S3 Vectors delivers purpose-built, cost-optimized vector storage for AI agents, inference, Retrieval Augmented Generation (RAG), and semantic search at billion-vector scale. S3 Vectors is designed to provide the same elasticity, durability, and availability as Amazon S3 and reduces the total costs to upload, store, and query vectors by up to 90%. You can store and query up to two billion vectors per index and elastically scale to 10,000 vector indexes per vector bucket. Infrequent queries return results in under one second, with more frequent queries resulting in latencies around 100 milliseconds or less. Your application can achieve write throughput of 1,000 vectors per second when streaming single-vector updates into your indexes, retrieve up to 100 search results per query, and store up to 50 metadata keys alongside each vector for fine-grained filtering in your queries.
With S3 Vectors you get a new bucket type—a vector bucket—that is optimized for durable, low-cost vector storage. Within vector buckets, you organize your vector data with vector indexes and get a dedicated set of APIs to store, access, and query vectors without provisioning any infrastructure. By default, S3 Vectors encrypts all vector data in a vector bucket with server-side encryption using S3-managed keys (SSE-S3) or optionally, you can use Amazon Key Management Service (SSE-KMS) to set a default customer-managed key to encrypt all new vector indexes in the vector bucket. You can also set a dedicated customer-managed key per vector index, helping you build scalable multi-tenant applications and meet regulatory and governance requirements. Additionally, you can tag vector buckets and indexes for attribute-based access control (ABAC) as well as to track and organize costs using Amazon Web Services Billing and Cost Management.
Amazon S3 Vectors is now available in the Amazon Web Services China (Beijing) Region, operated by Sinnet, and the Amazon Web Services China (Ningxia) Region, operated by NWCD. For pricing details, visit the S3 pricing page. To learn more, visit the product page and documentation.