diff --git a/google/cloud/aiplatform/v1beta1/content.proto b/google/cloud/aiplatform/v1beta1/content.proto
index 146bfcc12d72b..da636484727af 100644
--- a/google/cloud/aiplatform/v1beta1/content.proto
+++ b/google/cloud/aiplatform/v1beta1/content.proto
@@ -17,6 +17,7 @@ syntax = "proto3";
 package google.cloud.aiplatform.v1beta1;
 
 import "google/api/field_behavior.proto";
+import "google/cloud/aiplatform/v1beta1/openapi.proto";
 import "google/cloud/aiplatform/v1beta1/tool.proto";
 import "google/protobuf/duration.proto";
 import "google/type/date.proto";
@@ -168,6 +169,15 @@ message GenerationConfig {
   // otherwise the behavior is undefined.
   // This is a preview feature.
   string response_mime_type = 13 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. The `Schema` object allows the definition of input and output
+  // data types. These types can be objects, but also primitives and arrays.
+  // Represents a select subset of an [OpenAPI 3.0 schema
+  // object](https://spec.openapis.org/oas/v3.0.3#schema).
+  // If set, a compatible response_mime_type must also be set.
+  // Compatible mimetypes:
+  // `application/json`: Schema for JSON response.
+  optional Schema response_schema = 16 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // Safety settings.