diff --git a/OpenAI.SDK/ObjectModels/Models.cs b/OpenAI.SDK/ObjectModels/Models.cs
index 9d5e25f1..9cfb7f1f 100644
--- a/OpenAI.SDK/ObjectModels/Models.cs
+++ b/OpenAI.SDK/ObjectModels/Models.cs
@@ -98,7 +98,9 @@ public enum Model
         Gpt_4_turbo_preview,
         Gpt_4_turbo,
         Gpt_4_turbo_2024_04_09,
-
+        Gpt_4o,
+        Gpt_4o_2024_05_13,
+        
         WhisperV1,
 
         Dall_e_2,
@@ -202,6 +204,20 @@ public enum Subject
     ///     128,000 tokens	Up to Dec 2023
     /// </summary>
     public static string Gpt_4_turbo_2024_04_09 => "gpt-4-turbo-2024-04-09";
+    
+    /// <summary>
+    /// Our most advanced, multimodal flagship model that’s cheaper and faster than GPT-4 Turbo.
+    /// Currently points to gpt-4o-2024-05-13.
+    /// 128,000 tokens	Up to Oct 2023
+    /// </summary>
+    public static string Gpt_4o => "gpt-4o";
+    
+    /// <summary>
+    /// Our most advanced, multimodal flagship model that’s cheaper and faster than GPT-4 Turbo.
+    /// Currently points to gpt-4o-2024-05-13.
+    /// 128,000 tokens	Up to Oct 2023
+    /// </summary>
+    public static string Gpt_4o_2024_05_13 => "gpt-4o-2024-05-13";
 
 
     public static string Ada => "ada";
@@ -432,6 +448,8 @@ public static string EnumToString(this Model model)
             Model.Gpt_4_turbo_preview => Gpt_4_turbo_preview,
             Model.Gpt_4_turbo => Gpt_4_turbo,
             Model.Gpt_4_turbo_2024_04_09 => Gpt_4_turbo_2024_04_09,
+            Model.Gpt_4o => Gpt_4o,
+            Model.Gpt_4o_2024_05_13 => Gpt_4o_2024_05_13,
             Model.Tts_1 => Tts_1,
             Model.Tts_1_hd => Tts_1_hd,
             Model.Text_moderation_007 => TextModeration007,