Enable Amazon Bedrock cross-Region inference in multi-account environments

Amazon Bedrock cross-Region inference capability that provides organizations with flexibility to access foundation models (FMs) across AWS Regions while maintaining optimal performance and availability. However, some enterprises implement strict Regional access controls through service control policies (SCPs) or AWS Control Tower to adhere to compliance requirements, inadvertently blocking cross-Region inference functionality in Amazon Bedrock. This creates a challenging situation where organizations must balance security controls with using AI capabilities.

In this post, we explore how to modify your Regional access controls to specifically allow Amazon Bedrock cross-Region inference while maintaining broader Regional restrictions for other AWS services. We provide practical examples for both SCP modifications and AWS Control Tower implementations.

Understanding cross-Region inference

When running model inference in on-demand mode, your requests might be restricted by service quotas or during peak usage times. Cross-Region inference enables you to seamlessly manage unplanned traffic bursts by utilizing compute across different Regions. With ...