diff --git a/eng/Packages.Data.props b/eng/Packages.Data.props
index 9eac57fad63c..23459b212c25 100644
--- a/eng/Packages.Data.props
+++ b/eng/Packages.Data.props
@@ -165,7 +165,7 @@
     All should have PrivateAssets="All" set so they don't become package dependencies
   -->
   <ItemGroup>
-    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20230412.2" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20230413.1" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20230131.1" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="1.3.0" PrivateAssets="All" />
     <PackageReference Update="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.1" PrivateAssets="All" />
diff --git a/eng/emitter-package.json b/eng/emitter-package.json
index 150fd777446c..bf3eda933fed 100644
--- a/eng/emitter-package.json
+++ b/eng/emitter-package.json
@@ -1,6 +1,6 @@
 {
     "main": "dist/src/index.js",
     "dependencies": {
-      "@azure-tools/typespec-csharp": "0.2.0-beta.20230412.2"
+      "@azure-tools/typespec-csharp": "0.2.0-beta.20230413.1"
     }
 }
diff --git a/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.Serialization.cs b/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.Serialization.cs
index cffc279d095a..21a16a8991b3 100644
--- a/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.Serialization.cs
+++ b/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.Serialization.cs
@@ -5,9 +5,7 @@
 
 #nullable disable
 
-using System.Collections.Generic;
 using System.Text.Json;
-using Azure;
 using Azure.Core;
 
 namespace Azure.AI.OpenAI
@@ -15,14 +13,6 @@ namespace Azure.AI.OpenAI
     public partial class CompletionsOptions : IUtf8JsonSerializable
     {
 
-        /// <summary> Deserializes the model from a raw response. </summary>
-        /// <param name="response"> The response to deserialize the model from. </param>
-        internal static CompletionsOptions FromResponse(Response response)
-        {
-            using var document = JsonDocument.Parse(response.Content);
-            return DeserializeCompletionsOptions(document.RootElement);
-        }
-
         /// <summary> Convert into a Utf8JsonRequestContent. </summary>
         internal virtual RequestContent ToRequestContent()
         {
diff --git a/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.cs b/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.cs
index 478004fe5caa..5ebdce9cc7b9 100644
--- a/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.cs
+++ b/sdk/openai/Azure.AI.OpenAI/src/Generated/CompletionsOptions.cs
@@ -6,7 +6,6 @@
 #nullable disable
 
 using System.Collections.Generic;
-using System.Linq;
 using Azure.Core;
 
 namespace Azure.AI.OpenAI
diff --git a/sdk/openai/Azure.AI.OpenAI/src/Generated/EmbeddingsOptions.Serialization.cs b/sdk/openai/Azure.AI.OpenAI/src/Generated/EmbeddingsOptions.Serialization.cs
index 8fadc82e73d6..7b498c32e675 100644
--- a/sdk/openai/Azure.AI.OpenAI/src/Generated/EmbeddingsOptions.Serialization.cs
+++ b/sdk/openai/Azure.AI.OpenAI/src/Generated/EmbeddingsOptions.Serialization.cs
@@ -6,7 +6,6 @@
 #nullable disable
 
 using System.Text.Json;
-using Azure;
 using Azure.Core;
 
 namespace Azure.AI.OpenAI
@@ -14,14 +13,6 @@ namespace Azure.AI.OpenAI
     public partial class EmbeddingsOptions : IUtf8JsonSerializable
     {
 
-        /// <summary> Deserializes the model from a raw response. </summary>
-        /// <param name="response"> The response to deserialize the model from. </param>
-        internal static EmbeddingsOptions FromResponse(Response response)
-        {
-            using var document = JsonDocument.Parse(response.Content);
-            return DeserializeEmbeddingsOptions(document.RootElement);
-        }
-
         /// <summary> Convert into a Utf8JsonRequestContent. </summary>
         internal virtual RequestContent ToRequestContent()
         {