diff --git a/backend/open_webui/routers/pipelines.py b/backend/open_webui/routers/pipelines.py
index 827fadf7c9..753c9fc77f 100644
--- a/backend/open_webui/routers/pipelines.py
+++ b/backend/open_webui/routers/pipelines.py
@@ -69,6 +69,9 @@ async def process_pipeline_inlet_filter(request, payload, user, models):
     if 'pipeline' in model:
         sorted_filters.append(model)
 
+    if not sorted_filters:
+        return payload
+
     async with aiohttp.ClientSession(trust_env=True) as session:
         for filter in sorted_filters:
             urlIdx = filter.get('urlIdx')
@@ -132,6 +135,9 @@ async def process_pipeline_outlet_filter(request, payload, user, models):
     if 'pipeline' in model:
         sorted_filters = [model] + sorted_filters
 
+    if not sorted_filters:
+        return payload
+
     async with aiohttp.ClientSession(trust_env=True) as session:
         for filter in sorted_filters:
             urlIdx = filter.get('urlIdx')