diff --git a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/CreateLanguageModelOptions.java b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/CreateLanguageModelOptions.java
index 5897cef37c..51073b4b98 100644
--- a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/CreateLanguageModelOptions.java
+++ b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/CreateLanguageModelOptions.java
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright IBM Corp. 2018, 2020.
+ * (C) Copyright IBM Corp. 2021.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
@@ -21,30 +21,44 @@ public class CreateLanguageModelOptions extends GenericModel {
    * The name of the base language model that is to be customized by the new custom language model.
    * The new custom model can be used only with the base model that it customizes.
    *
-   * <p>To determine whether a base model supports language model customization, use the **Get a
-   * model** method and check that the attribute `custom_language_model` is set to `true`. You can
-   * also refer to [Language support for
-   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-customization#languageSupport).
+   * <p>To determine whether a base model supports language model customization, use the [Get a
+   * model](#getmodel) method and check that the attribute `custom_language_model` is set to `true`.
+   * You can also refer to [Language support for
+   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-custom-support#custom-language-support).
    */
   public interface BaseModelName {
+    /** ar-MS_Telephony. */
+    String AR_MS_TELEPHONY = "ar-MS_Telephony";
     /** de-DE_BroadbandModel. */
     String DE_DE_BROADBANDMODEL = "de-DE_BroadbandModel";
     /** de-DE_NarrowbandModel. */
     String DE_DE_NARROWBANDMODEL = "de-DE_NarrowbandModel";
+    /** de-DE_Telephony. */
+    String DE_DE_TELEPHONY = "de-DE_Telephony";
     /** en-AU_BroadbandModel. */
     String EN_AU_BROADBANDMODEL = "en-AU_BroadbandModel";
     /** en-AU_NarrowbandModel. */
     String EN_AU_NARROWBANDMODEL = "en-AU_NarrowbandModel";
+    /** en-AU_Telephony. */
+    String EN_AU_TELEPHONY = "en-AU_Telephony";
     /** en-GB_BroadbandModel. */
     String EN_GB_BROADBANDMODEL = "en-GB_BroadbandModel";
     /** en-GB_NarrowbandModel. */
     String EN_GB_NARROWBANDMODEL = "en-GB_NarrowbandModel";
+    /** en-GB_Telephony. */
+    String EN_GB_TELEPHONY = "en-GB_Telephony";
+    /** en-IN_Telephony. */
+    String EN_IN_TELEPHONY = "en-IN_Telephony";
     /** en-US_BroadbandModel. */
     String EN_US_BROADBANDMODEL = "en-US_BroadbandModel";
+    /** en-US_Multimedia. */
+    String EN_US_MULTIMEDIA = "en-US_Multimedia";
     /** en-US_NarrowbandModel. */
     String EN_US_NARROWBANDMODEL = "en-US_NarrowbandModel";
     /** en-US_ShortForm_NarrowbandModel. */
     String EN_US_SHORTFORM_NARROWBANDMODEL = "en-US_ShortForm_NarrowbandModel";
+    /** en-US_Telephony. */
+    String EN_US_TELEPHONY = "en-US_Telephony";
     /** es-AR_BroadbandModel. */
     String ES_AR_BROADBANDMODEL = "es-AR_BroadbandModel";
     /** es-AR_NarrowbandModel. */
@@ -61,6 +75,8 @@ public interface BaseModelName {
     String ES_ES_BROADBANDMODEL = "es-ES_BroadbandModel";
     /** es-ES_NarrowbandModel. */
     String ES_ES_NARROWBANDMODEL = "es-ES_NarrowbandModel";
+    /** es-ES_Telephony. */
+    String ES_ES_TELEPHONY = "es-ES_Telephony";
     /** es-MX_BroadbandModel. */
     String ES_MX_BROADBANDMODEL = "es-MX_BroadbandModel";
     /** es-MX_NarrowbandModel. */
@@ -73,22 +89,40 @@ public interface BaseModelName {
     String FR_CA_BROADBANDMODEL = "fr-CA_BroadbandModel";
     /** fr-CA_NarrowbandModel. */
     String FR_CA_NARROWBANDMODEL = "fr-CA_NarrowbandModel";
+    /** fr-CA_Telephony. */
+    String FR_CA_TELEPHONY = "fr-CA_Telephony";
     /** fr-FR_BroadbandModel. */
     String FR_FR_BROADBANDMODEL = "fr-FR_BroadbandModel";
+    /** fr-FR_Multimedia. */
+    String FR_FR_MULTIMEDIA = "fr-FR_Multimedia";
     /** fr-FR_NarrowbandModel. */
     String FR_FR_NARROWBANDMODEL = "fr-FR_NarrowbandModel";
+    /** fr-FR_Telephony. */
+    String FR_FR_TELEPHONY = "fr-FR_Telephony";
+    /** hi-IN_Telephony. */
+    String HI_IN_TELEPHONY = "hi-IN_Telephony";
     /** it-IT_BroadbandModel. */
     String IT_IT_BROADBANDMODEL = "it-IT_BroadbandModel";
     /** it-IT_NarrowbandModel. */
     String IT_IT_NARROWBANDMODEL = "it-IT_NarrowbandModel";
+    /** it-IT_Telephony. */
+    String IT_IT_TELEPHONY = "it-IT_Telephony";
     /** ja-JP_BroadbandModel. */
     String JA_JP_BROADBANDMODEL = "ja-JP_BroadbandModel";
+    /** ja-JP_Multimedia. */
+    String JA_JP_MULTIMEDIA = "ja-JP_Multimedia";
     /** ja-JP_NarrowbandModel. */
     String JA_JP_NARROWBANDMODEL = "ja-JP_NarrowbandModel";
     /** ko-KR_BroadbandModel. */
     String KO_KR_BROADBANDMODEL = "ko-KR_BroadbandModel";
+    /** ko-KR_Multimedia. */
+    String KO_KR_MULTIMEDIA = "ko-KR_Multimedia";
     /** ko-KR_NarrowbandModel. */
     String KO_KR_NARROWBANDMODEL = "ko-KR_NarrowbandModel";
+    /** ko-KR_Telephony. */
+    String KO_KR_TELEPHONY = "ko-KR_Telephony";
+    /** nl-BE_Telephony. */
+    String NL_BE_TELEPHONY = "nl-BE_Telephony";
     /** nl-NL_BroadbandModel. */
     String NL_NL_BROADBANDMODEL = "nl-NL_BroadbandModel";
     /** nl-NL_NarrowbandModel. */
@@ -97,6 +131,8 @@ public interface BaseModelName {
     String PT_BR_BROADBANDMODEL = "pt-BR_BroadbandModel";
     /** pt-BR_NarrowbandModel. */
     String PT_BR_NARROWBANDMODEL = "pt-BR_NarrowbandModel";
+    /** pt-BR_Telephony. */
+    String PT_BR_TELEPHONY = "pt-BR_Telephony";
   }
 
   protected String name;
@@ -225,10 +261,10 @@ public String name() {
    * <p>The name of the base language model that is to be customized by the new custom language
    * model. The new custom model can be used only with the base model that it customizes.
    *
-   * <p>To determine whether a base model supports language model customization, use the **Get a
-   * model** method and check that the attribute `custom_language_model` is set to `true`. You can
-   * also refer to [Language support for
-   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-customization#languageSupport).
+   * <p>To determine whether a base model supports language model customization, use the [Get a
+   * model](#getmodel) method and check that the attribute `custom_language_model` is set to `true`.
+   * You can also refer to [Language support for
+   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-custom-support#custom-language-support).
    *
    * @return the baseModelName
    */
@@ -241,20 +277,18 @@ public String baseModelName() {
    *
    * <p>The dialect of the specified language that is to be used with the custom language model. For
    * most languages, the dialect matches the language of the base model by default. For example,
-   * `en-US` is used for either of the US English language models.
+   * `en-US` is used for the US English language models. All dialect values are case-insensitive.
    *
-   * <p>For a Spanish language, the service creates a custom language model that is suited for
-   * speech in one of the following dialects: * `es-ES` for Castilian Spanish (`es-ES` models) *
-   * `es-LA` for Latin American Spanish (`es-AR`, `es-CL`, `es-CO`, and `es-PE` models) * `es-US`
-   * for Mexican (North American) Spanish (`es-MX` models)
+   * <p>The parameter is meaningful only for Spanish language models, for which you can always
+   * safely omit the parameter to have the service create the correct mapping. For Spanish, the
+   * service creates a custom language model that is suited for speech in one of the following
+   * dialects: * `es-ES` for Castilian Spanish (`es-ES` models) * `es-LA` for Latin American Spanish
+   * (`es-AR`, `es-CL`, `es-CO`, and `es-PE` models) * `es-US` for Mexican (North American) Spanish
+   * (`es-MX` models)
    *
-   * <p>The parameter is meaningful only for Spanish models, for which you can always safely omit
-   * the parameter to have the service create the correct mapping.
-   *
-   * <p>If you specify the `dialect` parameter for non-Spanish language models, its value must match
-   * the language of the base model. If you specify the `dialect` for Spanish language models, its
-   * value must match one of the defined mappings as indicated (`es-ES`, `es-LA`, or `es-MX`). All
-   * dialect values are case-insensitive.
+   * <p>If you specify the `dialect` parameter for a non-Spanish language model, its value must
+   * match the language of the base model. If you specify the `dialect` for a Spanish language
+   * model, its value must match one of the defined mappings (`es-ES`, `es-LA`, or `es-MX`).
    *
    * @return the dialect
    */
diff --git a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/GetModelOptions.java b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/GetModelOptions.java
index 960006e585..576036bb69 100644
--- a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/GetModelOptions.java
+++ b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/GetModelOptions.java
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright IBM Corp. 2018, 2021.
+ * (C) Copyright IBM Corp. 2021.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
@@ -18,9 +18,9 @@
 public class GetModelOptions extends GenericModel {
 
   /**
-   * The identifier of the model in the form of its name from the output of the **Get a model**
-   * method. (**Note:** The model `ar-AR_BroadbandModel` is deprecated; use `ar-MS_BroadbandModel`
-   * instead.).
+   * The identifier of the model in the form of its name from the output of the [List
+   * models](#listmodels) method. (**Note:** The model `ar-AR_BroadbandModel` is deprecated; use
+   * `ar-MS_BroadbandModel` instead.).
    */
   public interface ModelId {
     /** ar-AR_BroadbandModel. */
@@ -47,6 +47,8 @@ public interface ModelId {
     String EN_GB_NARROWBANDMODEL = "en-GB_NarrowbandModel";
     /** en-GB_Telephony. */
     String EN_GB_TELEPHONY = "en-GB_Telephony";
+    /** en-IN_Telephony. */
+    String EN_IN_TELEPHONY = "en-IN_Telephony";
     /** en-US_BroadbandModel. */
     String EN_US_BROADBANDMODEL = "en-US_BroadbandModel";
     /** en-US_Multimedia. */
@@ -91,10 +93,14 @@ public interface ModelId {
     String FR_CA_TELEPHONY = "fr-CA_Telephony";
     /** fr-FR_BroadbandModel. */
     String FR_FR_BROADBANDMODEL = "fr-FR_BroadbandModel";
+    /** fr-FR_Multimedia. */
+    String FR_FR_MULTIMEDIA = "fr-FR_Multimedia";
     /** fr-FR_NarrowbandModel. */
     String FR_FR_NARROWBANDMODEL = "fr-FR_NarrowbandModel";
     /** fr-FR_Telephony. */
     String FR_FR_TELEPHONY = "fr-FR_Telephony";
+    /** hi-IN_Telephony. */
+    String HI_IN_TELEPHONY = "hi-IN_Telephony";
     /** it-IT_BroadbandModel. */
     String IT_IT_BROADBANDMODEL = "it-IT_BroadbandModel";
     /** it-IT_NarrowbandModel. */
@@ -103,12 +109,20 @@ public interface ModelId {
     String IT_IT_TELEPHONY = "it-IT_Telephony";
     /** ja-JP_BroadbandModel. */
     String JA_JP_BROADBANDMODEL = "ja-JP_BroadbandModel";
+    /** ja-JP_Multimedia. */
+    String JA_JP_MULTIMEDIA = "ja-JP_Multimedia";
     /** ja-JP_NarrowbandModel. */
     String JA_JP_NARROWBANDMODEL = "ja-JP_NarrowbandModel";
     /** ko-KR_BroadbandModel. */
     String KO_KR_BROADBANDMODEL = "ko-KR_BroadbandModel";
+    /** ko-KR_Multimedia. */
+    String KO_KR_MULTIMEDIA = "ko-KR_Multimedia";
     /** ko-KR_NarrowbandModel. */
     String KO_KR_NARROWBANDMODEL = "ko-KR_NarrowbandModel";
+    /** ko-KR_Telephony. */
+    String KO_KR_TELEPHONY = "ko-KR_Telephony";
+    /** nl-BE_Telephony. */
+    String NL_BE_TELEPHONY = "nl-BE_Telephony";
     /** nl-NL_BroadbandModel. */
     String NL_NL_BROADBANDMODEL = "nl-NL_BroadbandModel";
     /** nl-NL_NarrowbandModel. */
@@ -185,9 +199,9 @@ public Builder newBuilder() {
   /**
    * Gets the modelId.
    *
-   * <p>The identifier of the model in the form of its name from the output of the **Get a model**
-   * method. (**Note:** The model `ar-AR_BroadbandModel` is deprecated; use `ar-MS_BroadbandModel`
-   * instead.).
+   * <p>The identifier of the model in the form of its name from the output of the [List
+   * models](#listmodels) method. (**Note:** The model `ar-AR_BroadbandModel` is deprecated; use
+   * `ar-MS_BroadbandModel` instead.).
    *
    * @return the modelId
    */
diff --git a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListAcousticModelsOptions.java b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListAcousticModelsOptions.java
index 04260c443b..33ac62e1ab 100644
--- a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListAcousticModelsOptions.java
+++ b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListAcousticModelsOptions.java
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright IBM Corp. 2018, 2021.
+ * (C) Copyright IBM Corp. 2021.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
@@ -24,7 +24,7 @@ public class ListAcousticModelsOptions extends GenericModel {
    * `ar-MS` instead.)
    *
    * <p>To determine the languages for which customization is available, see [Language support for
-   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-customization#languageSupport).
+   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-custom-support#custom-language-support).
    */
   public interface Language {
     /** ar-AR. */
@@ -37,6 +37,8 @@ public interface Language {
     String EN_AU = "en-AU";
     /** en-GB. */
     String EN_GB = "en-GB";
+    /** en-IN. */
+    String EN_IN = "en-IN";
     /** en-US. */
     String EN_US = "en-US";
     /** es-AR. */
@@ -55,12 +57,16 @@ public interface Language {
     String FR_CA = "fr-CA";
     /** fr-FR. */
     String FR_FR = "fr-FR";
+    /** hi-IN. */
+    String HI_IN = "hi-IN";
     /** it-IT. */
     String IT_IT = "it-IT";
     /** ja-JP. */
     String JA_JP = "ja-JP";
     /** ko-KR. */
     String KO_KR = "ko-KR";
+    /** nl-BE. */
+    String NL_BE = "nl-BE";
     /** nl-NL. */
     String NL_NL = "nl-NL";
     /** pt-BR. */
@@ -125,7 +131,7 @@ public Builder newBuilder() {
    * `ar-MS` instead.)
    *
    * <p>To determine the languages for which customization is available, see [Language support for
-   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-customization#languageSupport).
+   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-custom-support#custom-language-support).
    *
    * @return the language
    */
diff --git a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListLanguageModelsOptions.java b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListLanguageModelsOptions.java
index 8adf9f876a..1f99b86d7b 100644
--- a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListLanguageModelsOptions.java
+++ b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/ListLanguageModelsOptions.java
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright IBM Corp. 2018, 2021.
+ * (C) Copyright IBM Corp. 2021.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
@@ -24,7 +24,7 @@ public class ListLanguageModelsOptions extends GenericModel {
    * `ar-MS` instead.)
    *
    * <p>To determine the languages for which customization is available, see [Language support for
-   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-customization#languageSupport).
+   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-custom-support#custom-language-support).
    */
   public interface Language {
     /** ar-AR. */
@@ -37,6 +37,8 @@ public interface Language {
     String EN_AU = "en-AU";
     /** en-GB. */
     String EN_GB = "en-GB";
+    /** en-IN. */
+    String EN_IN = "en-IN";
     /** en-US. */
     String EN_US = "en-US";
     /** es-AR. */
@@ -55,12 +57,16 @@ public interface Language {
     String FR_CA = "fr-CA";
     /** fr-FR. */
     String FR_FR = "fr-FR";
+    /** hi-IN. */
+    String HI_IN = "hi-IN";
     /** it-IT. */
     String IT_IT = "it-IT";
     /** ja-JP. */
     String JA_JP = "ja-JP";
     /** ko-KR. */
     String KO_KR = "ko-KR";
+    /** nl-BE. */
+    String NL_BE = "nl-BE";
     /** nl-NL. */
     String NL_NL = "nl-NL";
     /** pt-BR. */
@@ -125,7 +131,7 @@ public Builder newBuilder() {
    * `ar-MS` instead.)
    *
    * <p>To determine the languages for which customization is available, see [Language support for
-   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-customization#languageSupport).
+   * customization](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-custom-support#custom-language-support).
    *
    * @return the language
    */
diff --git a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/RecognizeOptions.java b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/RecognizeOptions.java
index b550b11496..72c6a8ce7b 100644
--- a/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/RecognizeOptions.java
+++ b/speech-to-text/src/main/java/com/ibm/watson/speech_to_text/v1/model/RecognizeOptions.java
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright IBM Corp. 2016, 2021.
+ * (C) Copyright IBM Corp. 2021.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
@@ -26,8 +26,9 @@ public class RecognizeOptions extends GenericModel {
 
   /**
    * The identifier of the model that is to be used for the recognition request. (**Note:** The
-   * model `ar-AR_BroadbandModel` is deprecated; use `ar-MS_BroadbandModel` instead.) See [Languages
-   * and models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models) and
+   * model `ar-AR_BroadbandModel` is deprecated; use `ar-MS_BroadbandModel` instead.) See
+   * [Previous-generation languages and
+   * models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models) and
    * [Next-generation languages and
    * models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models-ng).
    */
@@ -50,6 +51,8 @@ public interface Model {
     String EN_AU_NARROWBANDMODEL = "en-AU_NarrowbandModel";
     /** en-AU_Telephony. */
     String EN_AU_TELEPHONY = "en-AU_Telephony";
+    /** en-IN_Telephony. */
+    String EN_IN_TELEPHONY = "en-IN_Telephony";
     /** en-GB_BroadbandModel. */
     String EN_GB_BROADBANDMODEL = "en-GB_BroadbandModel";
     /** en-GB_NarrowbandModel. */
@@ -100,10 +103,14 @@ public interface Model {
     String FR_CA_TELEPHONY = "fr-CA_Telephony";
     /** fr-FR_BroadbandModel. */
     String FR_FR_BROADBANDMODEL = "fr-FR_BroadbandModel";
+    /** fr-FR_Multimedia. */
+    String FR_FR_MULTIMEDIA = "fr-FR_Multimedia";
     /** fr-FR_NarrowbandModel. */
     String FR_FR_NARROWBANDMODEL = "fr-FR_NarrowbandModel";
     /** fr-FR_Telephony. */
     String FR_FR_TELEPHONY = "fr-FR_Telephony";
+    /** hi-IN_Telephony. */
+    String HI_IN_TELEPHONY = "hi-IN_Telephony";
     /** it-IT_BroadbandModel. */
     String IT_IT_BROADBANDMODEL = "it-IT_BroadbandModel";
     /** it-IT_NarrowbandModel. */
@@ -112,12 +119,20 @@ public interface Model {
     String IT_IT_TELEPHONY = "it-IT_Telephony";
     /** ja-JP_BroadbandModel. */
     String JA_JP_BROADBANDMODEL = "ja-JP_BroadbandModel";
+    /** ja-JP_Multimedia. */
+    String JA_JP_MULTIMEDIA = "ja-JP_Multimedia";
     /** ja-JP_NarrowbandModel. */
     String JA_JP_NARROWBANDMODEL = "ja-JP_NarrowbandModel";
     /** ko-KR_BroadbandModel. */
     String KO_KR_BROADBANDMODEL = "ko-KR_BroadbandModel";
+    /** ko-KR_Multimedia. */
+    String KO_KR_MULTIMEDIA = "ko-KR_Multimedia";
     /** ko-KR_NarrowbandModel. */
     String KO_KR_NARROWBANDMODEL = "ko-KR_NarrowbandModel";
+    /** ko-KR_Telephony. */
+    String KO_KR_TELEPHONY = "ko-KR_Telephony";
+    /** nl-BE_Telephony. */
+    String NL_BE_TELEPHONY = "nl-BE_Telephony";
     /** nl-NL_BroadbandModel. */
     String NL_NL_BROADBANDMODEL = "nl-NL_BroadbandModel";
     /** nl-NL_NarrowbandModel. */
@@ -623,8 +638,9 @@ public String contentType() {
    * Gets the model.
    *
    * <p>The identifier of the model that is to be used for the recognition request. (**Note:** The
-   * model `ar-AR_BroadbandModel` is deprecated; use `ar-MS_BroadbandModel` instead.) See [Languages
-   * and models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models) and
+   * model `ar-AR_BroadbandModel` is deprecated; use `ar-MS_BroadbandModel` instead.) See
+   * [Previous-generation languages and
+   * models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models) and
    * [Next-generation languages and
    * models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models-ng).
    *
@@ -838,7 +854,8 @@ public Boolean profanityFilter() {
    * final transcript of a recognition request. For US English, the service also converts certain
    * keyword strings to punctuation symbols. By default, the service performs no smart formatting.
    *
-   * <p>**Note:** Applies to US English, Japanese, and Spanish transcription only.
+   * <p>**Beta:** The parameter is beta functionality. Applies to US English, Japanese, and Spanish
+   * transcription only.
    *
    * <p>See [Smart
    * formatting](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-formatting#smart-formatting).
@@ -855,11 +872,13 @@ public Boolean smartFormatting() {
    * <p>If `true`, the response includes labels that identify which words were spoken by which
    * participants in a multi-person exchange. By default, the service returns no speaker labels.
    * Setting `speaker_labels` to `true` forces the `timestamps` parameter to be `true`, regardless
-   * of whether you specify `false` for the parameter. * For previous-generation models, can be used
-   * for US English, Australian English, German, Japanese, Korean, and Spanish (both broadband and
-   * narrowband models) and UK English (narrowband model) transcription only. * For next-generation
-   * models, can be used for English (Australian, UK, and US), German, and Spanish transcription
-   * only.
+   * of whether you specify `false` for the parameter.
+   *
+   * <p>**Beta:** The parameter is beta functionality. * For previous-generation models, the
+   * parameter can be used for Australian English, US English, German, Japanese, Korean, and Spanish
+   * (both broadband and narrowband models) and UK English (narrowband model) transcription only. *
+   * For next-generation models, the parameter can be used for English (Australian, Indian, UK, and
+   * US), German, Japanese, Korean, and Spanish transcription only.
    *
    * <p>Restrictions and limitations apply to the use of speaker labels for both types of models.
    * See [Speaker
@@ -891,7 +910,11 @@ public String customizationId() {
    * grammar, you must also use the `language_customization_id` parameter to specify the name of the
    * custom language model for which the grammar is defined. The service recognizes only strings
    * that are recognized by the specified grammar; it does not recognize other custom words from the
-   * model's words resource. See [Using a grammar for speech
+   * model's words resource.
+   *
+   * <p>**Beta:** The parameter is beta functionality.
+   *
+   * <p>See [Using a grammar for speech
    * recognition](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-grammarUse).
    *
    * @return the grammarName
@@ -913,7 +936,8 @@ public String grammarName() {
    * disables keyword spotting (ignores the `keywords` and `keywords_threshold` parameters) and
    * returns only a single final transcript (forces the `max_alternatives` parameter to be `1`).
    *
-   * <p>**Note:** Applies to US English, Japanese, and Korean transcription only.
+   * <p>**Beta:** The parameter is beta functionality. Applies to US English, Japanese, and Korean
+   * transcription only.
    *
    * <p>See [Numeric
    * redaction](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-formatting#numeric-redaction).
@@ -1034,12 +1058,11 @@ public Float backgroundAudioSuppression() {
    * parameter causes the models to produce results even more quickly, though the results might be
    * less accurate when the parameter is used.
    *
-   * <p>**Note:** The parameter is beta functionality. It is not available for previous-generation
-   * `Broadband` and `Narrowband` models. It is available only for some next-generation models.
-   *
-   * <p>* For a list of next-generation models that support low latency, see [Supported language
-   * models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models-ng#models-ng-supported)
-   * for next-generation models. * For more information about the `low_latency` parameter, see [Low
+   * <p>The parameter is not available for previous-generation `Broadband` and `Narrowband` models.
+   * It is available only for some next-generation models. For a list of next-generation models that
+   * support low latency, see [Supported next-generation language
+   * models](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models-ng#models-ng-supported).
+   * * For more information about the `low_latency` parameter, see [Low
    * latency](https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-interim#low-latency).
    *
    * @return the lowLatency