diff --git a/packages/gen-ai-hub/src/client/openai/openai-client.ts b/packages/gen-ai-hub/src/client/openai/openai-client.ts
index 5fd4200e..bc1986ce 100644
--- a/packages/gen-ai-hub/src/client/openai/openai-client.ts
+++ b/packages/gen-ai-hub/src/client/openai/openai-client.ts
@@ -2,9 +2,9 @@ import { type HttpRequestConfig } from '@sap-cloud-sdk/http-client';
 import { type CustomRequestConfig, executeRequest } from '@sap-ai-sdk/core';
 import { mergeIgnoreCase, pickValueIgnoreCase } from '@sap-cloud-sdk/util';
 import {
-  type DeploymentConfiguration,
+  type ModelDeployment,
   type FoundationModel,
-  type ModelConfiguration,
+  type Model,
   isDeploymentIdConfiguration,
   resolveDeployment
 } from '../../utils/deployment-resolver.js';
@@ -32,7 +32,7 @@ export class OpenAiClient {
    */
   async chatCompletion(
     data: OpenAiChatCompletionParameters,
-    deploymentConfig: DeploymentConfiguration<OpenAiChatModel>,
+    deploymentConfig: ModelDeployment<OpenAiChatModel>,
     requestConfig?: CustomRequestConfig
   ): Promise<OpenAiChatCompletionOutput> {
     const deploymentId = await getDeploymentId(deploymentConfig, requestConfig);
@@ -56,7 +56,7 @@ export class OpenAiClient {
    */
   async embeddings(
     data: OpenAiEmbeddingParameters,
-    deploymentConfig: DeploymentConfiguration<OpenAiEmbeddingModel>,
+    deploymentConfig: ModelDeployment<OpenAiEmbeddingModel>,
     requestConfig?: CustomRequestConfig
   ): Promise<OpenAiEmbeddingOutput> {
     const deploymentId = await getDeploymentId(deploymentConfig);
@@ -70,7 +70,7 @@ export class OpenAiClient {
 }
 
 async function getDeploymentId(
-  deploymentConfig: DeploymentConfiguration,
+  deploymentConfig: ModelDeployment,
   requestConfig?: CustomRequestConfig
 ) {
   if (isDeploymentIdConfiguration(deploymentConfig)) {
@@ -87,9 +87,7 @@ async function getDeploymentId(
   ).id;
 }
 
-function translateToFoundationModel(
-  modelConfig: ModelConfiguration
-): FoundationModel {
+function translateToFoundationModel(modelConfig: Model): FoundationModel {
   if (typeof modelConfig === 'string') {
     return { name: modelConfig };
   }
diff --git a/packages/gen-ai-hub/src/utils/deployment-resolver.ts b/packages/gen-ai-hub/src/utils/deployment-resolver.ts
index fc31eb64..7b827aca 100644
--- a/packages/gen-ai-hub/src/utils/deployment-resolver.ts
+++ b/packages/gen-ai-hub/src/utils/deployment-resolver.ts
@@ -20,7 +20,7 @@ export type ModelConfiguration<ModelNameT = string> =
 /**
  * The deployment configuration when using a deployment ID.
  */
-export interface DeploymentIdConfiguration {
+export interface DeploymentId {
   /**
    * The deployment ID.
    */
@@ -31,9 +31,9 @@ export interface DeploymentIdConfiguration {
  * The deployment configuration can be either a model configuration or a deployment ID configuration.
  * @typeParam ModelNameT - String literal type representing the name of the model.
  */
-export type DeploymentConfiguration<ModelNameT = string> =
+export type ModelDeployment<ModelNameT = string> =
   | ModelConfiguration<ModelNameT>
-  | DeploymentIdConfiguration;
+  | DeploymentId;
 
 /**
  * Type guard to check if the given deployment configuration is a deployment ID configuration.
@@ -41,23 +41,13 @@ export type DeploymentConfiguration<ModelNameT = string> =
  * @returns `true` if the configuration is a deployment ID configuration, `false` otherwise.
  */
 export function isDeploymentIdConfiguration(
-  deploymentConfig: DeploymentConfiguration
-): deploymentConfig is DeploymentIdConfiguration {
+  deploymentConfig: ModelDeployment
+): deploymentConfig is DeploymentId {
   return (
     typeof deploymentConfig === 'object' && 'deploymentId' in deploymentConfig
   );
 }
 
-/**
- * A deployment resolver can be either a deployment ID or a function that returns a full deployment object.
- */
-export type DeploymentResolver = DeploymentId | (() => Promise<AiDeployment>);
-
-/**
- * A deployment ID is a string that uniquely identifies a deployment.
- */
-export type DeploymentId = string;
-
 /**
  * A foundation model is identified by its name and potentially a version.
  */