diff --git a/langchain/llms/openai.py b/langchain/llms/openai.py
index 4eb28f3b90..e241ed7fb8 100644
--- a/langchain/llms/openai.py
+++ b/langchain/llms/openai.py
@@ -617,7 +617,7 @@ class AzureOpenAI(BaseOpenAI):
 
     deployment_name: str = ""
     """Deployment name to use."""
-    openai_api_type: str = "azure"
+    openai_api_type: str = ""
     openai_api_version: str = ""
 
     @root_validator()
@@ -628,9 +628,7 @@ class AzureOpenAI(BaseOpenAI):
             "OPENAI_API_VERSION",
         )
         values["openai_api_type"] = get_from_dict_or_env(
-            values,
-            "openai_api_type",
-            "OPENAI_API_TYPE",
+            values, "openai_api_type", "OPENAI_API_TYPE", "azure"
         )
         return values