diff --git a/instructor/function_calls.py b/instructor/function_calls.py
index 53cb6d5..4fc6321 100644
--- a/instructor/function_calls.py
+++ b/instructor/function_calls.py
@@ -122,12 +122,12 @@ class OpenAISchema(BaseModel):
         Returns:
             cls (OpenAISchema): An instance of the class
         """
-        if completion.choices[0].finish_reason == "length":
-            raise IncompleteOutputException()
-
         if stream_multitask:
             return cls.from_streaming_response(completion, mode)
 
+        if completion.choices[0].finish_reason == "length":
+            raise IncompleteOutputException()
+
         message = completion.choices[0].message
 
         if mode == Mode.FUNCTIONS:
@@ -183,12 +183,13 @@ class OpenAISchema(BaseModel):
         Returns:
             cls (OpenAISchema): An instance of the class
         """
-        if completion.choices[0].finish_reason == "length":
-            raise IncompleteOutputException()
 
         if stream_multitask:
             return await cls.from_streaming_response_async(completion, mode)
 
+        if completion.choices[0].finish_reason == "length":
+            raise IncompleteOutputException()
+
         message = completion.choices[0].message
 
         if mode == Mode.FUNCTIONS:
diff --git a/tests/openai/util.py b/tests/openai/util.py
index 9ef2461..1234286 100644
--- a/tests/openai/util.py
+++ b/tests/openai/util.py
@@ -5,5 +5,4 @@ modes = [
     instructor.Mode.FUNCTIONS,
     instructor.Mode.JSON,
     instructor.Mode.TOOLS,
-    instructor.Mode.MD_JSON,
 ]