diff --git a/backend/open_webui/utils/chat_variables.py b/backend/open_webui/utils/chat_variables.py
index 5ff2e21b05..c1776f333f 100644
--- a/backend/open_webui/utils/chat_variables.py
+++ b/backend/open_webui/utils/chat_variables.py
@@ -112,7 +112,7 @@ def _safe_field(key: str, definition: dict[str, Any]) -> dict[str, Any]:
         'type',
     }
     field = {'key': key}
-    for field_key in allowed_keys:
+    for field_key in sorted(allowed_keys):
         if field_key in definition:
             field[field_key] = definition[field_key]
 
diff --git a/backend/open_webui/utils/models.py b/backend/open_webui/utils/models.py
index 1c648b7f38..717718cc99 100644
--- a/backend/open_webui/utils/models.py
+++ b/backend/open_webui/utils/models.py
@@ -374,6 +374,8 @@ async def get_all_models(request, refresh: bool = False, user: UserModel = None)
             for filter_id in set(model.pop('filter_ids', [])) | global_filter_ids
             if filter_id in enabled_filter_ids
         ]
+        # Set order varies per process, and an unstable order defeats the RedisDict content signature.
+        filter_ids.sort()
 
         model['actions'] = []
         for action_id in action_ids: