diff --git a/src/OpenAI/Model/Gpt/Version.php b/src/OpenAI/Model/Gpt/Version.php
index 1ed0122..f92e4e5 100644
--- a/src/OpenAI/Model/Gpt/Version.php
+++ b/src/OpenAI/Model/Gpt/Version.php
@@ -12,6 +12,8 @@ enum Version: string
     case GPT_4_TURBO = 'gpt-4-turbo';
     case GPT_4o = 'gpt-4o';
     case GPT_4o_MINI = 'gpt-4o-mini';
+    case o1_MINI = 'o1-mini';
+    case o1_PREVIEW = 'o1-preview';
 
     public function hasStructuredOutputSupport(): bool
     {