diff --git a/clients/google-api-services-texttospeech/v1/2.0.0/README.md b/clients/google-api-services-texttospeech/v1/2.0.0/README.md
index 397677d57da..a8ae28b337c 100644
--- a/clients/google-api-services-texttospeech/v1/2.0.0/README.md
+++ b/clients/google-api-services-texttospeech/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-texttospeech</artifactId>
-      <version>v1-rev20251001-2.0.0</version>
+      <version>v1-rev20251014-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20251001-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20251014-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-texttospeech/v1/2.0.0/com/google/api/services/texttospeech/v1/model/AdvancedVoiceOptions.java b/clients/google-api-services-texttospeech/v1/2.0.0/com/google/api/services/texttospeech/v1/model/AdvancedVoiceOptions.java
index da2517b7ac4..197435e1981 100644
--- a/clients/google-api-services-texttospeech/v1/2.0.0/com/google/api/services/texttospeech/v1/model/AdvancedVoiceOptions.java
+++ b/clients/google-api-services-texttospeech/v1/2.0.0/com/google/api/services/texttospeech/v1/model/AdvancedVoiceOptions.java
@@ -37,6 +37,15 @@ public final class AdvancedVoiceOptions extends com.google.api.client.json.Gener
   @com.google.api.client.util.Key
   private java.lang.Boolean lowLatencyJourneySynthesis;
 
+  /**
+   * Optional. Input only. If true, relaxes safety filters for Gemini TTS. Only supported for
+   * accounts linked to Invoiced (Offline) Cloud billing accounts. Otherwise, will return result
+   * google.rpc.Code.INVALID_ARGUMENT.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Boolean relaxSafetyFilters;
+
   /**
    * Only for Journey voices. If false, the synthesis is context aware and has a higher latency.
    * @return value or {@code null} for none
@@ -54,6 +63,27 @@ public AdvancedVoiceOptions setLowLatencyJourneySynthesis(java.lang.Boolean lowL
     return this;
   }
 
+  /**
+   * Optional. Input only. If true, relaxes safety filters for Gemini TTS. Only supported for
+   * accounts linked to Invoiced (Offline) Cloud billing accounts. Otherwise, will return result
+   * google.rpc.Code.INVALID_ARGUMENT.
+   * @return value or {@code null} for none
+   */
+  public java.lang.Boolean getRelaxSafetyFilters() {
+    return relaxSafetyFilters;
+  }
+
+  /**
+   * Optional. Input only. If true, relaxes safety filters for Gemini TTS. Only supported for
+   * accounts linked to Invoiced (Offline) Cloud billing accounts. Otherwise, will return result
+   * google.rpc.Code.INVALID_ARGUMENT.
+   * @param relaxSafetyFilters relaxSafetyFilters or {@code null} for none
+   */
+  public AdvancedVoiceOptions setRelaxSafetyFilters(java.lang.Boolean relaxSafetyFilters) {
+    this.relaxSafetyFilters = relaxSafetyFilters;
+    return this;
+  }
+
   @Override
   public AdvancedVoiceOptions set(String fieldName, Object value) {
     return (AdvancedVoiceOptions) super.set(fieldName, value);
diff --git a/clients/google-api-services-texttospeech/v1/2.0.0/pom.xml b/clients/google-api-services-texttospeech/v1/2.0.0/pom.xml
index 46751166def..eba36478645 100644
--- a/clients/google-api-services-texttospeech/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-texttospeech/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-texttospeech</artifactId>
-  <version>v1-rev20251001-2.0.0</version>
-  <name>Cloud Text-to-Speech API v1-rev20251001-2.0.0</name>
+  <version>v1-rev20251014-2.0.0</version>
+  <name>Cloud Text-to-Speech API v1-rev20251014-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-texttospeech/v1/README.md b/clients/google-api-services-texttospeech/v1/README.md
index 397677d57da..a8ae28b337c 100644
--- a/clients/google-api-services-texttospeech/v1/README.md
+++ b/clients/google-api-services-texttospeech/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-texttospeech</artifactId>
-      <version>v1-rev20251001-2.0.0</version>
+      <version>v1-rev20251014-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20251001-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20251014-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-texttospeech/v1beta1/2.0.0/README.md b/clients/google-api-services-texttospeech/v1beta1/2.0.0/README.md
index ed5a89cd720..61998df61a7 100644
--- a/clients/google-api-services-texttospeech/v1beta1/2.0.0/README.md
+++ b/clients/google-api-services-texttospeech/v1beta1/2.0.0/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-texttospeech</artifactId>
-      <version>v1beta1-rev20251001-2.0.0</version>
+      <version>v1beta1-rev20251014-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20251001-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20251014-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-texttospeech/v1beta1/2.0.0/com/google/api/services/texttospeech/v1beta1/model/AdvancedVoiceOptions.java b/clients/google-api-services-texttospeech/v1beta1/2.0.0/com/google/api/services/texttospeech/v1beta1/model/AdvancedVoiceOptions.java
index ec1f84bf044..70a0068c0e3 100644
--- a/clients/google-api-services-texttospeech/v1beta1/2.0.0/com/google/api/services/texttospeech/v1beta1/model/AdvancedVoiceOptions.java
+++ b/clients/google-api-services-texttospeech/v1beta1/2.0.0/com/google/api/services/texttospeech/v1beta1/model/AdvancedVoiceOptions.java
@@ -37,6 +37,15 @@ public final class AdvancedVoiceOptions extends com.google.api.client.json.Gener
   @com.google.api.client.util.Key
   private java.lang.Boolean lowLatencyJourneySynthesis;
 
+  /**
+   * Optional. Input only. If true, relaxes safety filters for Gemini TTS. Only supported for
+   * accounts linked to Invoiced (Offline) Cloud billing accounts. Otherwise, will return result
+   * google.rpc.Code.INVALID_ARGUMENT.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Boolean relaxSafetyFilters;
+
   /**
    * Only for Journey voices. If false, the synthesis is context aware and has a higher latency.
    * @return value or {@code null} for none
@@ -54,6 +63,27 @@ public AdvancedVoiceOptions setLowLatencyJourneySynthesis(java.lang.Boolean lowL
     return this;
   }
 
+  /**
+   * Optional. Input only. If true, relaxes safety filters for Gemini TTS. Only supported for
+   * accounts linked to Invoiced (Offline) Cloud billing accounts. Otherwise, will return result
+   * google.rpc.Code.INVALID_ARGUMENT.
+   * @return value or {@code null} for none
+   */
+  public java.lang.Boolean getRelaxSafetyFilters() {
+    return relaxSafetyFilters;
+  }
+
+  /**
+   * Optional. Input only. If true, relaxes safety filters for Gemini TTS. Only supported for
+   * accounts linked to Invoiced (Offline) Cloud billing accounts. Otherwise, will return result
+   * google.rpc.Code.INVALID_ARGUMENT.
+   * @param relaxSafetyFilters relaxSafetyFilters or {@code null} for none
+   */
+  public AdvancedVoiceOptions setRelaxSafetyFilters(java.lang.Boolean relaxSafetyFilters) {
+    this.relaxSafetyFilters = relaxSafetyFilters;
+    return this;
+  }
+
   @Override
   public AdvancedVoiceOptions set(String fieldName, Object value) {
     return (AdvancedVoiceOptions) super.set(fieldName, value);
diff --git a/clients/google-api-services-texttospeech/v1beta1/2.0.0/pom.xml b/clients/google-api-services-texttospeech/v1beta1/2.0.0/pom.xml
index 00a5e966d1b..a8631b4b94a 100644
--- a/clients/google-api-services-texttospeech/v1beta1/2.0.0/pom.xml
+++ b/clients/google-api-services-texttospeech/v1beta1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-texttospeech</artifactId>
-  <version>v1beta1-rev20251001-2.0.0</version>
-  <name>Cloud Text-to-Speech API v1beta1-rev20251001-2.0.0</name>
+  <version>v1beta1-rev20251014-2.0.0</version>
+  <name>Cloud Text-to-Speech API v1beta1-rev20251014-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-texttospeech/v1beta1/README.md b/clients/google-api-services-texttospeech/v1beta1/README.md
index ed5a89cd720..61998df61a7 100644
--- a/clients/google-api-services-texttospeech/v1beta1/README.md
+++ b/clients/google-api-services-texttospeech/v1beta1/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-texttospeech</artifactId>
-      <version>v1beta1-rev20251001-2.0.0</version>
+      <version>v1beta1-rev20251014-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20251001-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20251014-2.0.0'
 }
 ```