Are there built-in mechanisms in Bedrock for load balancing requests across resources, or is that something the application needs to manage on its end?

AWS Bedrock provides built-in mechanisms to handle scaling and availability, reducing the need for applications to manage load balancing directly. As a fully managed service, Bedrock abstracts infrastructure concerns, including resource allocation and traffic distribution. It automatically scales to accommodate varying request volumes, ensuring workloads are balanced across its underlying resources without requiring manual intervention. This is achieved through AWS’s internal load balancing and scaling systems, which dynamically adjust capacity based on demand. Developers interact with Bedrock via API endpoints, and the service manages the distribution of requests behind the scenes.

For example, when an application sends inference requests to a Bedrock model, the service routes each request to available compute resources within AWS’s infrastructure. If traffic spikes, Bedrock scales horizontally by provisioning additional resources to maintain performance. This eliminates the need for developers to set up and maintain load balancers, instance groups, or auto-scaling policies specifically for Bedrock. However, this automation is limited to Bedrock’s own resources—if your application integrates multiple services (e.g., combining Bedrock with other AWS or third-party APIs), you’ll need to manage load balancing across those external components separately.

While Bedrock handles internal load balancing, applications may still need to implement strategies for specific scenarios. For instance, if you’re using multiple Bedrock models or regions, you might design logic to distribute requests based on cost, latency, or regional availability. Tools like AWS Route 53 or Application Load Balancer could help route traffic between Bedrock endpoints in different regions. Additionally, Bedrock’s Provisioned Throughput feature allows reserving capacity for high-priority workloads, which can be seen as a form of targeted load management. In summary, Bedrock manages resource-level load balancing internally, but developers retain responsibility for higher-level architectural decisions involving multiple services or custom routing requirements.