class PromptRouter 🔹

Language	Type name
.NET	Amazon.CDK.AWS.Bedrock.Alpha.PromptRouter
Go	github.com/aws/aws-cdk-go/awsbedrockalpha/v2#PromptRouter
Java	software.amazon.awscdk.services.bedrock.alpha.PromptRouter
Python	aws_cdk.aws_bedrock_alpha.PromptRouter
TypeScript (source)	@aws-cdk/aws-bedrock-alpha » PromptRouter

Implements IBedrockInvokable, IPromptRouter

Amazon Bedrock intelligent prompt routing provides a single serverless endpoint for efficiently routing requests between different foundational models within the same model family.

It can help you optimize for response quality and cost.

Intelligent prompt routing predicts the performance of each model for each request, and dynamically routes each request to the model that it predicts is most likely to give the desired response at the lowest cost.

See also: https://docs.aws.amazon.com/bedrock/latest/userguide/prompt-routing.html

Example

// Create a prompt router for intelligent model selection
const promptRouter = bedrock.PromptRouter.fromDefaultId(
  bedrock.DefaultPromptRouterIdentifier.ANTHROPIC_CLAUDE_V1,
  'us-east-1'
);

// Use the prompt router with a prompt variant
const variant = bedrock.PromptVariant.text({
  variantName: 'variant1',
  promptText: 'What is the capital of France?',
  model: promptRouter,
});

new bedrock.Prompt(this, 'Prompt', {
  promptName: 'prompt-router-test',
  variants: [variant],
});

Initializer

new PromptRouter(props: PromptRouterProps, region: string)

Parameters

• props PromptRouterProps
• region string

Properties

Name	Type	Description
invokableArn🔹	string	The ARN used for invoking this prompt router.
promptRouterArn🔹	string	The ARN of the prompt router.
promptRouterId🔹	string	The ID of the prompt router.
routingEndpoints🔹	IBedrockInvokable[]	The inference endpoints (cross-region profiles) that this router will route to.

---

invokableArn🔹

Type: string

The ARN used for invoking this prompt router.

This equals to the promptRouterArn property, useful for implementing IBedrockInvokable interface.

---

promptRouterArn🔹

Type: string

The ARN of the prompt router.

---

promptRouterId🔹

Type: string

The ID of the prompt router.

---

routingEndpoints🔹

Type: IBedrockInvokable[]

The inference endpoints (cross-region profiles) that this router will route to.

These are created automatically based on the routing models and region.

Methods

Name	Description
grantInvoke(grantee)🔹	Grants the necessary permissions to invoke this prompt router and all its routing endpoints.
static fromDefaultId(defaultRouter, region)🔹	Creates a PromptRouter from a default router identifier.

---

grantInvoke(grantee)🔹

public grantInvoke(grantee: IGrantable): Grant

Parameters

• grantee IGrantable — - The IAM principal to grant permissions to.

Returns

• Grant

Grants the necessary permissions to invoke this prompt router and all its routing endpoints.

This method grants permissions to:

• Get prompt router details (bedrock:GetPromptRouter)
• Invoke models through the router (bedrock:InvokeModel)
• Use all underlying models and cross-region profiles

---

static fromDefaultId(defaultRouter, region)🔹

public static fromDefaultId(defaultRouter: DefaultPromptRouterIdentifier, region: string): PromptRouter

Parameters

• defaultRouter DefaultPromptRouterIdentifier — - The default router configuration to use.
• region string — - The AWS region where the router will be used.

Returns

• PromptRouter

Creates a PromptRouter from a default router identifier.