diff --git a/litellm/responses/streaming_iterator.py b/litellm/responses/streaming_iterator.py
index 7325e4e645..cc8711c3e1 100644
--- a/litellm/responses/streaming_iterator.py
+++ b/litellm/responses/streaming_iterator.py
@@ -6,7 +6,9 @@ from typing import Any, AsyncIterator, Dict, Optional, Union
 import httpx
 
 from litellm.constants import STREAM_SSE_DONE_STRING
+from litellm.litellm_core_utils.asyncify import run_async_function
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
+from litellm.litellm_core_utils.thread_pool_executor import executor
 from litellm.llms.base_llm.responses.transformation import BaseResponsesAPIConfig
 from litellm.types.llms.openai import (
     ResponsesAPIStreamEvents,
@@ -72,7 +74,7 @@ class BaseResponsesAPIStreamingIterator:
                     == ResponsesAPIStreamEvents.RESPONSE_COMPLETED
                 ):
                     self.completed_response = openai_responses_api_chunk
-                    self._handle_completed_response()
+                    self._handle_logging_completed_response()
 
                 return openai_responses_api_chunk
 
@@ -81,7 +83,7 @@ class BaseResponsesAPIStreamingIterator:
             # If we can't parse the chunk, continue
             return None
 
-    def _handle_completed_response(self):
+    def _handle_logging_completed_response(self):
         """Base implementation - should be overridden by subclasses"""
         pass
 
@@ -128,7 +130,7 @@ class ResponsesAPIStreamingIterator(BaseResponsesAPIStreamingIterator):
             self.finished = True
             raise e
 
-    def _handle_completed_response(self):
+    def _handle_logging_completed_response(self):
         """Handle logging for completed responses in async context"""
         asyncio.create_task(
             self.logging_obj.async_success_handler(
@@ -139,6 +141,14 @@ class ResponsesAPIStreamingIterator(BaseResponsesAPIStreamingIterator):
             )
         )
 
+        executor.submit(
+            self.logging_obj.success_handler,
+            result=self.completed_response,
+            cache_hit=None,
+            start_time=self.start_time,
+            end_time=datetime.now(),
+        )
+
 
 class SyncResponsesAPIStreamingIterator(BaseResponsesAPIStreamingIterator):
     """
@@ -181,11 +191,20 @@ class SyncResponsesAPIStreamingIterator(BaseResponsesAPIStreamingIterator):
             self.finished = True
             raise e
 
-    def _handle_completed_response(self):
+    def _handle_logging_completed_response(self):
         """Handle logging for completed responses in sync context"""
-        self.logging_obj.success_handler(
+        run_async_function(
+            async_function=self.logging_obj.async_success_handler,
             result=self.completed_response,
             start_time=self.start_time,
             end_time=datetime.now(),
             cache_hit=None,
         )
+
+        executor.submit(
+            self.logging_obj.success_handler,
+            result=self.completed_response,
+            cache_hit=None,
+            start_time=self.start_time,
+            end_time=datetime.now(),
+        )