diff --git a/backend/open_webui/models/users.py b/backend/open_webui/models/users.py
index 7e398c1e4..fffeb32d3 100644
--- a/backend/open_webui/models/users.py
+++ b/backend/open_webui/models/users.py
@@ -762,6 +762,14 @@ class UsersTable:
             )
             return count
 
+    @staticmethod
+    def is_active(user: UserModel) -> bool:
+        """Compute active status from an already-loaded UserModel (no DB hit)."""
+        if user.last_active_at:
+            three_minutes_ago = int(time.time()) - 180
+            return user.last_active_at >= three_minutes_ago
+        return False
+
     def is_user_active(self, user_id: str, db: Optional[Session] = None) -> bool:
         with get_db_context(db) as db:
             user = db.query(User).filter_by(id=user_id).first()
diff --git a/backend/open_webui/routers/channels.py b/backend/open_webui/routers/channels.py
index 1748eaf7e..3add5023e 100644
--- a/backend/open_webui/routers/channels.py
+++ b/backend/open_webui/routers/channels.py
@@ -204,7 +204,7 @@ async def get_channels(
                 UserIdNameStatusResponse(
                     **{
                         **user.model_dump(),
-                        "is_active": Users.is_user_active(user.id, db=db),
+                        "is_active": Users.is_active(user),
                     }
                 )
                 for user in Users.get_users_by_user_ids(user_ids, db=db)
@@ -424,7 +424,7 @@ async def get_channel_by_id(
             UserIdNameStatusResponse(
                 **{
                     **user.model_dump(),
-                    "is_active": Users.is_user_active(user.id, db=db),
+                    "is_active": Users.is_active(user),
                 }
             )
             for user in Users.get_users_by_user_ids(user_ids, db=db)
@@ -541,7 +541,7 @@ async def get_channel_members_by_id(
         return {
             "users": [
                 UserModelResponse(
-                    **user.model_dump(), is_active=Users.is_user_active(user.id, db=db)
+                    **user.model_dump(), is_active=Users.is_active(user)
                 )
                 for user in users
             ],
@@ -576,7 +576,7 @@ async def get_channel_members_by_id(
         return {
             "users": [
                 UserModelResponse(
-                    **user.model_dump(), is_active=Users.is_user_active(user.id, db=db)
+                    **user.model_dump(), is_active=Users.is_active(user)
                 )
                 for user in users
             ],