diff --git a/src/promptflow-core/promptflow/core/__init__.py b/src/promptflow-core/promptflow/core/__init__.py
index 6c9367f1089..f7eaf1ea61d 100644
--- a/src/promptflow-core/promptflow/core/__init__.py
+++ b/src/promptflow-core/promptflow/core/__init__.py
@@ -13,6 +13,7 @@
     ModelConfiguration,
     OpenAIModelConfiguration,
 )
+import promptflow.core._errors as errors
 
 from ._version import __version__
 
@@ -30,5 +31,6 @@
     "ModelConfiguration",
     "OpenAIModelConfiguration",
     "AzureOpenAIModelConfiguration",
+    "errors",
     "__version__",
 ]
diff --git a/src/promptflow-core/promptflow/core/_errors.py b/src/promptflow-core/promptflow/core/_errors.py
index f153b670f46..8981186e00f 100644
--- a/src/promptflow-core/promptflow/core/_errors.py
+++ b/src/promptflow-core/promptflow/core/_errors.py
@@ -234,6 +234,11 @@ def __init__(self, ex: OpenAIError, **kwargs):
     @property
     def message(self):
         return str(to_openai_error_message(self._ex))
+    
+    @property
+    def inner_exception(self):
+        """Get the inner exception."""
+        return self._ex
 
     @property
     def error_codes(self):