diff --git a/clients/google-api-services-deepreview/v1/2.0.0/README.md b/clients/google-api-services-deepreview/v1/2.0.0/README.md
index 9328372da30..c55d0473b61 100644
--- a/clients/google-api-services-deepreview/v1/2.0.0/README.md
+++ b/clients/google-api-services-deepreview/v1/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-deepreview</artifactId>
-      <version>v1-rev20261028-2.9.2</version>
+      <version>v1-rev20261030-2.9.2</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-deepreview:v1-rev20261028-2.9.2'
+  implementation 'com.google.apis:google-api-services-deepreview:v1-rev20261030-2.9.2'
 }
 ```
 
diff --git a/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/DeepReview.java b/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/DeepReview.java
index 83e643de37b..386ecc35ebd 100644
--- a/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/DeepReview.java
+++ b/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/DeepReview.java
@@ -327,9 +327,9 @@ public Delete set(String parameterName, Object value) {
     }
     /**
      * Estimates what a review of a document would cost on the caller's Gemini API key. The estimate
-     * comes from what past reviews with the same model and depth cost, adjusted to this document's size
-     * and repriced at the Gemini API's current list prices. It covers one review attempt that runs to
-     * completion, and doesn't include retries after errors.
+     * comes from what past reviews with the same model, depth, and thinking level cost, adjusted to
+     * this document's size and repriced at the Gemini API's current list prices. It covers one review
+     * attempt that runs to completion, and doesn't include retries after errors.
      *
      * Create a request for the method "documents.estimateReviewCost".
      *
@@ -355,9 +355,9 @@ public class EstimateReviewCost extends DeepReviewRequest<com.google.api.service
 
       /**
        * Estimates what a review of a document would cost on the caller's Gemini API key. The estimate
-       * comes from what past reviews with the same model and depth cost, adjusted to this document's
-       * size and repriced at the Gemini API's current list prices. It covers one review attempt that
-       * runs to completion, and doesn't include retries after errors.
+       * comes from what past reviews with the same model, depth, and thinking level cost, adjusted to
+       * this document's size and repriced at the Gemini API's current list prices. It covers one review
+       * attempt that runs to completion, and doesn't include retries after errors.
        *
        * Create a request for the method "documents.estimateReviewCost".
        *
diff --git a/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/DeepReviewRunConfig.java b/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/DeepReviewRunConfig.java
index d9a379162e1..c12c3eebb72 100644
--- a/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/DeepReviewRunConfig.java
+++ b/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/DeepReviewRunConfig.java
@@ -55,6 +55,16 @@ public final class DeepReviewRunConfig extends com.google.api.client.json.Generi
   @com.google.api.client.util.Key
   private java.lang.String model;
 
+  /**
+   * Optional. Reasoning effort level for model calls in the review pipeline. Defaults to
+   * `THINKING_LEVEL_MEDIUM` when omitted or `THINKING_LEVEL_UNSPECIFIED`.
+   * Non-`THINKING_LEVEL_MEDIUM` thinking levels require `gemini_api_key` when calling
+   * `CreateReview`; otherwise `CreateReview` returns `INVALID_ARGUMENT`.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * Optional. Review execution topology profile to use.
    * The value may be {@code null}.
@@ -131,6 +141,29 @@ public DeepReviewRunConfig setModel(java.lang.String model) {
     return this;
   }
 
+  /**
+   * Optional. Reasoning effort level for model calls in the review pipeline. Defaults to
+   * `THINKING_LEVEL_MEDIUM` when omitted or `THINKING_LEVEL_UNSPECIFIED`.
+   * Non-`THINKING_LEVEL_MEDIUM` thinking levels require `gemini_api_key` when calling
+   * `CreateReview`; otherwise `CreateReview` returns `INVALID_ARGUMENT`.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * Optional. Reasoning effort level for model calls in the review pipeline. Defaults to
+   * `THINKING_LEVEL_MEDIUM` when omitted or `THINKING_LEVEL_UNSPECIFIED`.
+   * Non-`THINKING_LEVEL_MEDIUM` thinking levels require `gemini_api_key` when calling
+   * `CreateReview`; otherwise `CreateReview` returns `INVALID_ARGUMENT`.
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public DeepReviewRunConfig setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * Optional. Review execution topology profile to use.
    * @return value or {@code null} for none
diff --git a/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/EstimateReviewCostResponse.java b/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/EstimateReviewCostResponse.java
index f2a7afd6bae..baea42e03b7 100644
--- a/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/EstimateReviewCostResponse.java
+++ b/clients/google-api-services-deepreview/v1/2.0.0/com/google/api/services/deepreview/v1/model/EstimateReviewCostResponse.java
@@ -18,8 +18,8 @@
 
 /**
  * Response message for estimating what a review would cost. When the cost can't be estimated, for
- * example because too few past reviews used the same model and depth, the costs are unset and
- * `past_review_count` is 0.
+ * example because too few past reviews used the same model, depth, and thinking level, the costs
+ * are unset and `past_review_count` is 0.
  *
  * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
  * transmitted over HTTP when working with the Deep Review API. For a detailed explanation see:
diff --git a/clients/google-api-services-deepreview/v1/2.0.0/pom.xml b/clients/google-api-services-deepreview/v1/2.0.0/pom.xml
index 2cb1569f3c0..50e14fe8a52 100644
--- a/clients/google-api-services-deepreview/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-deepreview/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-deepreview</artifactId>
-  <version>v1-rev20261028-2.9.2</version>
-  <name>Deep Review API v1-rev20261028-2.9.2</name>
+  <version>v1-rev20261030-2.9.2</version>
+  <name>Deep Review API v1-rev20261030-2.9.2</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-deepreview/v1/README.md b/clients/google-api-services-deepreview/v1/README.md
index 9328372da30..c55d0473b61 100644
--- a/clients/google-api-services-deepreview/v1/README.md
+++ b/clients/google-api-services-deepreview/v1/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-deepreview</artifactId>
-      <version>v1-rev20261028-2.9.2</version>
+      <version>v1-rev20261030-2.9.2</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-deepreview:v1-rev20261028-2.9.2'
+  implementation 'com.google.apis:google-api-services-deepreview:v1-rev20261030-2.9.2'
 }
 ```