diff --git a/backend/open_webui/models/calendar.py b/backend/open_webui/models/calendar.py
index 4faad1a456..efdfd291ba 100644
--- a/backend/open_webui/models/calendar.py
+++ b/backend/open_webui/models/calendar.py
@@ -241,11 +241,11 @@ class CalendarTable:
         access_grants: Optional[list[AccessGrantModel]] = None,
         db: Optional[AsyncSession] = None,
     ) -> CalendarModel:
-        cal_data = CalendarModel.model_validate(cal).model_dump(exclude={'access_grants'})
-        cal_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(cal_data['id'], db=db)
+        calendar_model = CalendarModel.model_validate(cal)
+        calendar_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(calendar_model.id, db=db)
         )
-        return CalendarModel.model_validate(cal_data)
+        return calendar_model
 
     async def get_or_create_defaults(self, user_id: str, db: Optional[AsyncSession] = None) -> list[CalendarModel]:
         """Return user's calendars, creating 'Personal' default if none exist."""
diff --git a/backend/open_webui/models/channels.py b/backend/open_webui/models/channels.py
index 5028cdf2c8..95cc58cd32 100644
--- a/backend/open_webui/models/channels.py
+++ b/backend/open_webui/models/channels.py
@@ -266,11 +266,11 @@ class ChannelTable:
         access_grants: Optional[list[AccessGrantModel]] = None,
         db: Optional[AsyncSession] = None,
     ) -> ChannelModel:
-        channel_data = ChannelModel.model_validate(channel).model_dump(exclude={'access_grants'})
-        channel_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(channel_data['id'], db=db)
+        channel_model = ChannelModel.model_validate(channel)
+        channel_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(channel_model.id, db=db)
         )
-        return ChannelModel.model_validate(channel_data)
+        return channel_model
 
     async def _collect_unique_user_ids(
         self,
diff --git a/backend/open_webui/models/knowledge.py b/backend/open_webui/models/knowledge.py
index dceb3cbec0..52a78c46c1 100644
--- a/backend/open_webui/models/knowledge.py
+++ b/backend/open_webui/models/knowledge.py
@@ -195,11 +195,11 @@ class KnowledgeTable:
         access_grants: Optional[list[AccessGrantModel]] = None,
         db: Optional[AsyncSession] = None,
     ) -> KnowledgeModel:
-        knowledge_data = KnowledgeModel.model_validate(knowledge).model_dump(exclude={'access_grants'})
-        knowledge_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(knowledge_data['id'], db=db)
+        knowledge_model = KnowledgeModel.model_validate(knowledge)
+        knowledge_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(knowledge_model.id, db=db)
         )
-        return KnowledgeModel.model_validate(knowledge_data)
+        return knowledge_model
 
     async def insert_new_knowledge(
         self, user_id: str, form_data: KnowledgeForm, db: Optional[AsyncSession] = None
diff --git a/backend/open_webui/models/models.py b/backend/open_webui/models/models.py
index 5f44d59405..95300c7dd2 100755
--- a/backend/open_webui/models/models.py
+++ b/backend/open_webui/models/models.py
@@ -199,11 +199,11 @@ class ModelsTable:
                 if db is not None:
                     await db.commit()
 
-        model_data = ModelModel.model_validate(model).model_dump(exclude={'access_grants'})
-        model_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(model_data['id'], db=db)
+        model_model = ModelModel.model_validate(model)
+        model_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(model_model.id, db=db)
         )
-        return ModelModel.model_validate(model_data)
+        return model_model
 
     async def insert_new_model(
         self, form_data: ModelForm, user_id: str, db: AsyncSession | None = None
diff --git a/backend/open_webui/models/notes.py b/backend/open_webui/models/notes.py
index 01986d9cfe..8d8eb2414f 100644
--- a/backend/open_webui/models/notes.py
+++ b/backend/open_webui/models/notes.py
@@ -106,12 +106,12 @@ class NoteTable:
         db: Optional[AsyncSession] = None,
     ) -> NoteModel:
         # We exclude access_grants to inject them
-        note_data = NoteModel.model_validate(note).model_dump(exclude={'access_grants'})
-        note_data['data'] = note_data.get('data') or {}
-        note_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(note_data['id'], db=db)
+        note_model = NoteModel.model_validate(note)
+        note_model.data = note_model.data or {}
+        note_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(note_model.id, db=db)
         )
-        return NoteModel.model_validate(note_data)
+        return note_model
 
     def _has_permission(self, db, query, filter: dict, permission: str = 'read'):
         return AccessGrants.has_permission_filter(
diff --git a/backend/open_webui/models/prompts.py b/backend/open_webui/models/prompts.py
index 61ce0fc218..f4f4187f17 100644
--- a/backend/open_webui/models/prompts.py
+++ b/backend/open_webui/models/prompts.py
@@ -103,11 +103,11 @@ class PromptsTable:
         access_grants: list[AccessGrantModel | None] = None,
         db: AsyncSession | None = None,
     ) -> PromptModel:
-        prompt_data = PromptModel.model_validate(prompt).model_dump(exclude={'access_grants'})
-        prompt_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(prompt_data['id'], db=db)
+        prompt_model = PromptModel.model_validate(prompt)
+        prompt_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(prompt_model.id, db=db)
         )
-        return PromptModel.model_validate(prompt_data)
+        return prompt_model
 
     async def insert_new_prompt(
         self, user_id: str, form_data: PromptForm, db: AsyncSession | None = None
diff --git a/backend/open_webui/models/skills.py b/backend/open_webui/models/skills.py
index c3c007cdd9..b4a64fd02d 100644
--- a/backend/open_webui/models/skills.py
+++ b/backend/open_webui/models/skills.py
@@ -113,11 +113,11 @@ class SkillsTable:
         access_grants: Optional[list[AccessGrantModel]] = None,
         db: Optional[AsyncSession] = None,
     ) -> SkillModel:
-        skill_data = SkillModel.model_validate(skill).model_dump(exclude={'access_grants'})
-        skill_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(skill_data['id'], db=db)
+        skill_model = SkillModel.model_validate(skill)
+        skill_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(skill_model.id, db=db)
         )
-        return SkillModel.model_validate(skill_data)
+        return skill_model
 
     async def insert_new_skill(
         self,
diff --git a/backend/open_webui/models/tools.py b/backend/open_webui/models/tools.py
index 86568288e0..cbc21854ea 100644
--- a/backend/open_webui/models/tools.py
+++ b/backend/open_webui/models/tools.py
@@ -106,11 +106,11 @@ class ToolsTable:
         access_grants: list[AccessGrantModel | None] = None,
         db: AsyncSession | None = None,
     ) -> ToolModel:
-        tool_data = ToolModel.model_validate(tool).model_dump(exclude={'access_grants'})
-        tool_data['access_grants'] = (
-            access_grants if access_grants is not None else await self._get_access_grants(tool_data['id'], db=db)
+        tool_model = ToolModel.model_validate(tool)
+        tool_model.access_grants = (
+            access_grants if access_grants is not None else await self._get_access_grants(tool_model.id, db=db)
         )
-        return ToolModel.model_validate(tool_data)
+        return tool_model
 
     async def insert_new_tool(
         self,