diff --git a/backend/open_webui/retrieval/vector/dbs/disabled.py b/backend/open_webui/retrieval/vector/dbs/disabled.py
new file mode 100644
index 0000000..7e1ab23
--- /dev/null
+++ b/backend/open_webui/retrieval/vector/dbs/disabled.py
@@ -0,0 +1,50 @@
+from typing import Dict, List, Optional, Union
+
+from open_webui.retrieval.vector.main import (
+    GetResult,
+    SearchResult,
+    VectorDBBase,
+    VectorItem,
+)
+
+
+class DisabledVectorClient(VectorDBBase):
+    """No-op vector backend used when all RAG surfaces are disabled."""
+
+    def has_collection(self, collection_name: str) -> bool:
+        return False
+
+    def delete_collection(self, collection_name: str) -> None:
+        return None
+
+    def insert(self, collection_name: str, items: List[VectorItem]) -> None:
+        raise RuntimeError("Vector storage is disabled")
+
+    def upsert(self, collection_name: str, items: List[VectorItem]) -> None:
+        raise RuntimeError("Vector storage is disabled")
+
+    def search(
+        self,
+        collection_name: str,
+        vectors: List[List[Union[float, int]]],
+        filter: Optional[Dict] = None,
+        limit: int = 10,
+    ) -> Optional[SearchResult]:
+        return None
+
+    def query(
+        self,
+        collection_name: str,
+        filter: Dict,
+        limit: Optional[int] = None,
+    ) -> Optional[GetResult]:
+        return None
+
+    def get(self, collection_name: str) -> Optional[GetResult]:
+        return None
+
+    def delete(self, collection_name: str, ids=None, filter=None) -> None:
+        return None
+
+    def reset(self) -> None:
+        return None
diff --git a/backend/open_webui/retrieval/vector/factory.py b/backend/open_webui/retrieval/vector/factory.py
index af10c5d..35c3266 100644
--- a/backend/open_webui/retrieval/vector/factory.py
+++ b/backend/open_webui/retrieval/vector/factory.py
@@ -74,6 +74,10 @@ class Vector:
             case VectorType.CHROMA:
                 from open_webui.retrieval.vector.dbs.chroma import ChromaClient
 
                 return ChromaClient()
+            case 'disabled':
+                from open_webui.retrieval.vector.dbs.disabled import DisabledVectorClient
+
+                return DisabledVectorClient()
             case VectorType.ORACLE23AI:
                 from open_webui.retrieval.vector.dbs.oracle23ai import Oracle23aiClient