diff --git a/api/OpenAI.net8.0.cs b/api/OpenAI.net8.0.cs
index 8f4fd74f2..a1c60e02e 100644
--- a/api/OpenAI.net8.0.cs
+++ b/api/OpenAI.net8.0.cs
@@ -1770,7 +1770,8 @@ public enum FilePurpose {
         FineTune = 4,
         FineTuneResults = 5,
         Vision = 6,
-        UserData = 7
+        UserData = 7,
+        Evaluations = 8
     }
     [Obsolete("This struct is obsolete. If this is a fine-tuning training file, it may take some time to process after it has been uploaded. While the file is processing, you can still create a fine-tuning job but it will not start until the file processing has completed.")]
     public enum FileStatus {
diff --git a/api/OpenAI.netstandard2.0.cs b/api/OpenAI.netstandard2.0.cs
index e1e5cd624..d96748af0 100644
--- a/api/OpenAI.netstandard2.0.cs
+++ b/api/OpenAI.netstandard2.0.cs
@@ -1681,7 +1681,8 @@ public enum FilePurpose {
         FineTune = 4,
         FineTuneResults = 5,
         Vision = 6,
-        UserData = 7
+        UserData = 7,
+        Evaluations = 8
     }
     [Obsolete("This struct is obsolete. If this is a fine-tuning training file, it may take some time to process after it has been uploaded. While the file is processing, you can still create a fine-tuning job but it will not start until the file processing has completed.")]
     public enum FileStatus {
diff --git a/src/Custom/Files/FilePurpose.Serialization.cs b/src/Custom/Files/FilePurpose.Serialization.cs
index bdc07f3af..d6a9a0340 100644
--- a/src/Custom/Files/FilePurpose.Serialization.cs
+++ b/src/Custom/Files/FilePurpose.Serialization.cs
@@ -18,7 +18,49 @@ internal static partial class FilePurposeExtensions
             FilePurpose.FineTuneResults => "fine-tune-results",
             FilePurpose.Vision => "vision",
             FilePurpose.UserData => "user_data",
+            FilePurpose.Evaluations => "evals",
             _ => throw new ArgumentOutOfRangeException(nameof(value), value, "Unknown FilePurpose value.")
         };
+
+        public static FilePurpose ToFilePurpose(this string value)
+        {
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "assistants"))
+            {
+                return FilePurpose.Assistants;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "assistants_output"))
+            {
+                return FilePurpose.AssistantsOutput;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "batch"))
+            {
+                return FilePurpose.Batch;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "batch_output"))
+            {
+                return FilePurpose.BatchOutput;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "fine-tune"))
+            {
+                return FilePurpose.FineTune;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "fine-tune-results"))
+            {
+                return FilePurpose.FineTuneResults;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "vision"))
+            {
+                return FilePurpose.Vision;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "user_data"))
+            {
+                return FilePurpose.UserData;
+            }
+            if (StringComparer.OrdinalIgnoreCase.Equals(value, "evals"))
+            {
+                return FilePurpose.Evaluations;
+            }
+            throw new ArgumentOutOfRangeException(nameof(value), value, "Unknown FilePurpose value.");
+        }
     }
 }
diff --git a/src/Custom/Files/FilePurpose.cs b/src/Custom/Files/FilePurpose.cs
index bbe6e66f8..cbae9b885 100644
--- a/src/Custom/Files/FilePurpose.cs
+++ b/src/Custom/Files/FilePurpose.cs
@@ -18,4 +18,6 @@ public enum FilePurpose
     Vision,
 
     UserData,
+
+    Evaluations,
 }
\ No newline at end of file
diff --git a/src/Custom/Files/FileUploadPurpose.Serialization.cs b/src/Custom/Files/FileUploadPurpose.Serialization.cs
deleted file mode 100644
index cf4c65706..000000000
--- a/src/Custom/Files/FileUploadPurpose.Serialization.cs
+++ /dev/null
@@ -1,48 +0,0 @@
-// <auto-generated/>
-
-#nullable disable
-
-using System;
-
-namespace OpenAI.Files
-{
-    internal static partial class FilePurposeExtensions
-    {
-        public static FilePurpose ToFilePurpose(this string value)
-        {
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "assistants"))
-            {
-                return FilePurpose.Assistants;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "assistants_output"))
-            {
-                return FilePurpose.AssistantsOutput;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "batch"))
-            {
-                return FilePurpose.Batch;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "batch_output"))
-            {
-                return FilePurpose.BatchOutput;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "fine-tune"))
-            {
-                return FilePurpose.FineTune;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "fine-tune-results"))
-            {
-                return FilePurpose.FineTuneResults;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "vision"))
-            {
-                return FilePurpose.Vision;
-            }
-            if (StringComparer.OrdinalIgnoreCase.Equals(value, "user_data"))
-            {
-                return FilePurpose.UserData;
-            }
-            throw new ArgumentOutOfRangeException(nameof(value), value, "Unknown FilePurpose value.");
-        }
-    }
-}