AWS released Managed Knowledge Bases for Amazon Bedrock on 17 June 2026. The feature significantly reduces the operational complexity of building Retrieval-Augmented Generation (RAG) solutions by allowing Bedrock to manage the vector storage, indexing, embeddings, and retrieval infrastructure on your behalf.
For teams looking to deliver an Agent Core proof of concept or their first production RAG workload quickly, this can be a compelling option. However, there are some important trade-offs to understand before committing to the managed approach.
Traditionally, a Bedrock Knowledge Base required a customer-managed vector store such as:
OpenSearch Serverless
OpenSearch Managed Clusters
