
Bedrock Knowledge Base Cost Starts at the Vector Store
A 5,000-document corpus on the site calculator is $163.28/month on S3 Vectors and $510.52/month on OpenSearch Serverless Classic. $160 of the smaller bill is Claude Sonnet 5.5.
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A 5,000-document corpus on the site calculator is $163.28/month on S3 Vectors and $510.52/month on OpenSearch Serverless Classic. $160 of the smaller bill is Claude Sonnet 5.5.

On 23 Sep 2026 AWS added Salesforce and Zendesk connectors. The managed Salesforce crawl is 4 entity flags, not the classic preview's 21 CRM objects. New customer-managed Salesforce connectors stop on 30 Sep 2026.

Managed Knowledge Base Web Crawler, GA with the service on 17 Jun 2026, follows up to 300 URLs per minute from 10 seeds or 3 sitemaps. A 10,000-URL help center is at least 34 minutes at that cap, and the crawler still has no per-page ACL.

Amazon Bedrock Knowledge Bases automate the RAG (Retrieval-Augmented Generation) pipeline — semantic search, chunking, embedding, and context injection into Claude or other foundation models. This guide covers setup, data ingestion, cost optimization, and production patterns.