diff --git a/backend/apps/system/api/assistant.py b/backend/apps/system/api/assistant.py
index 3b476129..c765b8dc 100644
--- a/backend/apps/system/api/assistant.py
+++ b/backend/apps/system/api/assistant.py
@@ -112,7 +112,7 @@ async def clear_ui_cache(id: int):
 
 @router.get("", response_model=list[AssistantModel])
 async def query(session: SessionDep):
-    list_result = session.exec(select(AssistantModel).where(AssistantModel.type.in_([0, 1])).order_by(AssistantModel.name, AssistantModel.create_time)).all()
+    list_result = session.exec(select(AssistantModel).where(AssistantModel.type != 4).order_by(AssistantModel.name, AssistantModel.create_time)).all()
     return list_result
 
 @router.post("")
diff --git a/backend/common/utils/random.py b/backend/common/utils/random.py
new file mode 100644
index 00000000..879f4225
--- /dev/null
+++ b/backend/common/utils/random.py
@@ -0,0 +1,6 @@
+import secrets
+import string
+
+def get_random_string(length=16):
+    alphabet = string.ascii_letters + string.digits
+    return ''.join(secrets.choice(alphabet) for _ in range(length))