diff --git a/sdk/communication/Azure.Communication.Chat/api/Azure.Communication.Chat.netstandard2.0.cs b/sdk/communication/Azure.Communication.Chat/api/Azure.Communication.Chat.netstandard2.0.cs
index 1500e811a4fc..92282a076566 100644
--- a/sdk/communication/Azure.Communication.Chat/api/Azure.Communication.Chat.netstandard2.0.cs
+++ b/sdk/communication/Azure.Communication.Chat/api/Azure.Communication.Chat.netstandard2.0.cs
@@ -101,15 +101,6 @@ internal ChatThreadInfo() { }
         public System.DateTimeOffset? LastMessageReceivedOn { get { throw null; } }
         public string Topic { get { throw null; } }
     }
-    public partial class ChatThreadInternal
-    {
-        internal ChatThreadInternal() { }
-        public string CreatedBy { get { throw null; } }
-        public System.DateTimeOffset? CreatedOn { get { throw null; } }
-        public string Id { get { throw null; } }
-        public System.Collections.Generic.IReadOnlyList<Azure.Communication.Chat.ChatThreadMemberInternal> Members { get { throw null; } }
-        public string Topic { get { throw null; } }
-    }
     public partial class ChatThreadMember
     {
         public ChatThreadMember(Azure.Communication.CommunicationUser communicationUser) { }
@@ -117,13 +108,6 @@ public ChatThreadMember(Azure.Communication.CommunicationUser communicationUser)
         public System.DateTimeOffset? ShareHistoryTime { get { throw null; } set { } }
         public Azure.Communication.CommunicationUser User { get { throw null; } set { } }
     }
-    public partial class ChatThreadMemberInternal
-    {
-        public ChatThreadMemberInternal(string id) { }
-        public string DisplayName { get { throw null; } set { } }
-        public string Id { get { throw null; } set { } }
-        public System.DateTimeOffset? ShareHistoryTime { get { throw null; } set { } }
-    }
     public partial class ReadReceipt
     {
         internal ReadReceipt() { }
diff --git a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.Serialization.cs b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.Serialization.cs
index 71f131942402..7264bb59975a 100644
--- a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.Serialization.cs
+++ b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.Serialization.cs
@@ -12,7 +12,7 @@
 
 namespace Azure.Communication.Chat
 {
-    public partial class ChatThreadInternal
+    internal partial class ChatThreadInternal
     {
         internal static ChatThreadInternal DeserializeChatThreadInternal(JsonElement element)
         {
diff --git a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.cs b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.cs
index 13bae41c372e..6a3b7ea2b5f6 100644
--- a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.cs
+++ b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadInternal.cs
@@ -12,7 +12,7 @@
 namespace Azure.Communication.Chat
 {
     /// <summary> The ChatThread. </summary>
-    public partial class ChatThreadInternal
+    internal partial class ChatThreadInternal
     {
         /// <summary> Initializes a new instance of ChatThreadInternal. </summary>
         internal ChatThreadInternal()
diff --git a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.Serialization.cs b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.Serialization.cs
index 7247f20460e1..2d77dba7e2ec 100644
--- a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.Serialization.cs
+++ b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.Serialization.cs
@@ -11,7 +11,7 @@
 
 namespace Azure.Communication.Chat
 {
-    public partial class ChatThreadMemberInternal : IUtf8JsonSerializable
+    internal partial class ChatThreadMemberInternal : IUtf8JsonSerializable
     {
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer)
         {
diff --git a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.cs b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.cs
index 121c21753f78..667a48cef655 100644
--- a/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.cs
+++ b/sdk/communication/Azure.Communication.Chat/src/Generated/Models/ChatThreadMemberInternal.cs
@@ -10,7 +10,7 @@
 namespace Azure.Communication.Chat
 {
     /// <summary> A member of the chat thread. </summary>
-    public partial class ChatThreadMemberInternal
+    internal partial class ChatThreadMemberInternal
     {
         /// <summary> Initializes a new instance of ChatThreadMemberInternal. </summary>
         /// <param name="id"> The id of the chat thread member in the format `8:acs:ResourceId_AcsUserId`. </param>
diff --git a/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadInternal.cs b/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadInternal.cs
index 5c8ed25b41fa..097e7988254f 100644
--- a/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadInternal.cs
+++ b/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadInternal.cs
@@ -1,14 +1,12 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-using System;
 using Azure.Core;
-using Azure.Communication;
 
 namespace Azure.Communication.Chat
 {
     [CodeGenModel("ChatThread")]
-    public partial class ChatThreadInternal
+    internal partial class ChatThreadInternal
     {
     }
 }
diff --git a/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadMemberInternal.cs b/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadMemberInternal.cs
index 1df9e12a97c6..bd80ccb0d753 100644
--- a/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadMemberInternal.cs
+++ b/sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadMemberInternal.cs
@@ -1,14 +1,12 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-using System;
 using Azure.Core;
-using Azure.Communication;
 
 namespace Azure.Communication.Chat
 {
     [CodeGenModel("ChatThreadMember")]
-    public partial class ChatThreadMemberInternal
+    internal partial class ChatThreadMemberInternal
     {
         internal ChatThreadMember ToChatThreadMember()
         {