diff --git a/docs/release_notes.md b/docs/release_notes.md
index 80e2325c3..0eeaf2aef 100644
--- a/docs/release_notes.md
+++ b/docs/release_notes.md
@@ -16,7 +16,7 @@
 
 ### 📈 Improvements
 
--
+- [RPT] `RptClient.tableCompletion()` GZIP compresses the request payload.
 
 ### 🐛 Fixed Issues
 
diff --git a/foundation-models/sap-rpt/pom.xml b/foundation-models/sap-rpt/pom.xml
index 51632e973..12cc0f858 100644
--- a/foundation-models/sap-rpt/pom.xml
+++ b/foundation-models/sap-rpt/pom.xml
@@ -56,6 +56,10 @@
       <groupId>com.sap.cloud.sdk.cloudplatform</groupId>
       <artifactId>cloudplatform-connectivity</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.sap.cloud.sdk.datamodel</groupId>
+      <artifactId>openapi-core-apache</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.sap.cloud.sdk.datamodel</groupId>
       <artifactId>openapi-core</artifactId>
diff --git a/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/RptClient.java b/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/RptClient.java
index 154ce0535..dde008f4b 100644
--- a/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/RptClient.java
+++ b/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/RptClient.java
@@ -3,6 +3,7 @@
 import static com.sap.ai.sdk.core.JacksonConfiguration.getDefaultObjectMapper;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
 import com.google.common.annotations.Beta;
 import com.sap.ai.sdk.core.AiCoreService;
 import com.sap.ai.sdk.core.DeploymentResolutionException;
@@ -12,8 +13,15 @@
 import com.sap.ai.sdk.foundationmodels.rpt.generated.model.PredictResponsePayload;
 import com.sap.ai.sdk.foundationmodels.rpt.generated.model.PredictionConfig;
 import com.sap.cloud.sdk.cloudplatform.connectivity.Destination;
-import com.sap.cloud.sdk.services.openapi.apache.ApiClient;
+import com.sap.cloud.sdk.services.openapi.apache.apiclient.ApiClient;
+import com.sap.cloud.sdk.services.openapi.apache.apiclient.Pair;
+import com.sap.cloud.sdk.services.openapi.core.OpenApiRequestException;
 import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.StringJoiner;
 import javax.annotation.Nonnull;
 import lombok.AccessLevel;
 import lombok.RequiredArgsConstructor;
@@ -26,6 +34,7 @@
 @RequiredArgsConstructor(access = AccessLevel.PRIVATE)
 public class RptClient {
   @Nonnull private final DefaultApi api;
+  @Nonnull private final ApiClient apiClient;
 
   /**
    * Creates a new RptClient for the specified foundation model.
@@ -49,7 +58,7 @@ public static RptClient forModel(@Nonnull final RptModel foundationModel)
    */
   static RptClient forDestination(@Nonnull final Destination destination) {
     final var apiClient = ApiClient.create(destination).withObjectMapper(getDefaultObjectMapper());
-    return new RptClient(new DefaultApi(apiClient));
+    return new RptClient(new DefaultApi(apiClient), apiClient);
   }
 
   /**
@@ -73,8 +82,37 @@ static RptClient forDestination(@Nonnull final Destination destination) {
    */
   @Beta
   @Nonnull
-  public PredictResponsePayload tableCompletion(@Nonnull final PredictRequestPayload requestBody) {
-    return api.predict(requestBody);
+  public PredictResponsePayload tableCompletion(@Nonnull final PredictRequestPayload requestBody)
+      throws OpenApiRequestException {
+
+    // create path and map variables
+    final String localVarPath = "/predict";
+
+    final StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    final List<Pair> localVarQueryParams = new ArrayList<>();
+    final List<Pair> localVarCollectionQueryParams = new ArrayList<>();
+    final Map<String, String> localVarHeaderParams = Map.of("Content-Encoding", "gzip");
+    final Map<String, Object> localVarFormParams = new HashMap<>();
+
+    final String[] localVarAccepts = {"application/json"};
+    final String localVarAccept = ApiClient.selectHeaderAccept(localVarAccepts);
+    final String[] localVarContentTypes = {"application/json"};
+    final String localVarContentType = ApiClient.selectHeaderContentType(localVarContentTypes);
+
+    final TypeReference<PredictResponsePayload> localVarReturnType = new TypeReference<>() {};
+
+    return apiClient.invokeAPI(
+        localVarPath,
+        "POST",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarQueryStringJoiner.toString(),
+        requestBody,
+        localVarHeaderParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarReturnType);
   }
 
   /**
diff --git a/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/generated/client/DefaultApi.java b/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/generated/client/DefaultApi.java
index 99fa86dd4..be7bbdfe2 100644
--- a/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/generated/client/DefaultApi.java
+++ b/foundation-models/sap-rpt/src/main/java/com/sap/ai/sdk/foundationmodels/rpt/generated/client/DefaultApi.java
@@ -4,10 +4,10 @@
 import com.sap.ai.sdk.foundationmodels.rpt.generated.model.PredictRequestPayload;
 import com.sap.ai.sdk.foundationmodels.rpt.generated.model.PredictResponsePayload;
 import com.sap.cloud.sdk.cloudplatform.connectivity.Destination;
-import com.sap.cloud.sdk.services.openapi.apache.ApiClient;
-import com.sap.cloud.sdk.services.openapi.apache.BaseApi;
-import com.sap.cloud.sdk.services.openapi.apache.Pair;
-import com.sap.cloud.sdk.services.openapi.core.OpenApiRequestException;
+import com.sap.cloud.sdk.services.openapi.apache.apiclient.ApiClient;
+import com.sap.cloud.sdk.services.openapi.apache.apiclient.BaseApi;
+import com.sap.cloud.sdk.services.openapi.apache.apiclient.Pair;
+import com.sap.cloud.sdk.services.openapi.apache.core.OpenApiRequestException;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.HashMap;
diff --git a/pom.xml b/pom.xml
index 10abeb36f..d5f2154bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -56,7 +56,7 @@
     <maven.compiler.proc>full</maven.compiler.proc>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.build.outputTimestamp>2025-04-03T13:23:00Z</project.build.outputTimestamp>
-    <cloud-sdk.version>5.26.0</cloud-sdk.version>
+    <cloud-sdk.version>5.27.0-SNAPSHOT</cloud-sdk.version>
     <junit-jupiter.version>6.0.3</junit-jupiter.version>
     <wiremock.version>3.13.2</wiremock.version>
     <assertj-core.version>3.27.7</assertj-core.version>