diff --git a/web/src/hooks/logic-hooks/use-change-search.ts b/web/src/hooks/logic-hooks/use-change-search.ts
index c404456ccf..66a3f42ffd 100644
--- a/web/src/hooks/logic-hooks/use-change-search.ts
+++ b/web/src/hooks/logic-hooks/use-change-search.ts
@@ -10,5 +10,5 @@ export const useHandleSearchStrChange = () => {
     [],
   );
 
-  return { handleInputChange, searchString };
+  return { handleInputChange, searchString, setSearchString };
 };
diff --git a/web/src/hooks/use-chat-request.ts b/web/src/hooks/use-chat-request.ts
index b57378f2b3..ff057b4d71 100644
--- a/web/src/hooks/use-chat-request.ts
+++ b/web/src/hooks/use-chat-request.ts
@@ -273,7 +273,8 @@ export const useFetchChat = () => {
 export const useFetchSessionList = () => {
   const { id } = useParams();
 
-  const { searchString, handleInputChange } = useHandleSearchStrChange();
+  const { searchString, handleInputChange, setSearchString } =
+    useHandleSearchStrChange();
 
   const {
     data,
@@ -299,7 +300,14 @@ export const useFetchSessionList = () => {
     },
   });
 
-  return { data, loading, refetch, searchString, handleInputChange };
+  return {
+    data,
+    loading,
+    refetch,
+    searchString,
+    handleInputChange,
+    setSearchString,
+  };
 };
 
 export function useFetchSessionManually() {
diff --git a/web/src/pages/next-chats/chat/sessions.tsx b/web/src/pages/next-chats/chat/sessions.tsx
index 9bbd6c1bbd..740247f2bc 100644
--- a/web/src/pages/next-chats/chat/sessions.tsx
+++ b/web/src/pages/next-chats/chat/sessions.tsx
@@ -83,10 +83,22 @@ export function Sessions({ handleConversationCardClick }: SessionProps) {
     });
   }, []);
 
+  // Selected items that are still visible under the current search filter.
+  // Batch deletion and the selected count must act on this set — selectedIds
+  // alone would include items filtered out of view by the search.
+  const visibleSelectedIds = useMemo(
+    () =>
+      conversationList.filter((x) => selectedIds.has(x.id)).map((x) => x.id),
+    [conversationList, selectedIds],
+  );
+
   // Toggle select all
   const toggleSelectAll = useCallback(() => {
     setSelectedIds((prev) => {
-      if (prev.size === conversationList.length) {
+      const allVisibleSelected =
+        conversationList.length > 0 &&
+        conversationList.every((x) => prev.has(x.id));
+      if (allVisibleSelected) {
         return new Set();
       }
       return new Set(conversationList.map((x) => x.id));
@@ -95,20 +107,19 @@ export function Sessions({ handleConversationCardClick }: SessionProps) {
 
   // Batch delete
   const handleBatchDelete = useCallback(async () => {
-    if (selectedIds.size === 0) {
+    if (visibleSelectedIds.length === 0) {
       return;
     }
 
-    const selectedIdList = Array.from(selectedIds);
     const currentConversationDeleted = conversationId
-      ? selectedIdList.includes(conversationId)
+      ? visibleSelectedIds.includes(conversationId)
       : false;
     const temporaryIdSet = new Set(
       conversationList.filter((item) => item.is_new).map((item) => item.id),
     );
     const persistedIds: string[] = [];
 
-    selectedIdList.forEach((id) => {
+    visibleSelectedIds.forEach((id) => {
       if (temporaryIdSet.has(id)) {
         removeTemporaryConversation(id);
       } else {
@@ -131,7 +142,7 @@ export function Sessions({ handleConversationCardClick }: SessionProps) {
     }
     exitSelectionMode();
   }, [
-    selectedIds,
+    visibleSelectedIds,
     conversationId,
     conversationList,
     setConversationBoth,
@@ -140,7 +151,7 @@ export function Sessions({ handleConversationCardClick }: SessionProps) {
     exitSelectionMode,
   ]);
 
-  const selectedCount = useMemo(() => selectedIds.size, [selectedIds]);
+  const selectedCount = visibleSelectedIds.length;
 
   const { id } = useParams();
   const { showEmbedModal, hideEmbedModal, embedVisible, beta } =
diff --git a/web/src/pages/next-chats/hooks/use-select-conversation-list.ts b/web/src/pages/next-chats/hooks/use-select-conversation-list.ts
index 754869d6f2..e1fa8f2b1f 100644
--- a/web/src/pages/next-chats/hooks/use-select-conversation-list.ts
+++ b/web/src/pages/next-chats/hooks/use-select-conversation-list.ts
@@ -30,6 +30,7 @@ export const useSelectDerivedConversationList = () => {
     loading,
     handleInputChange,
     searchString,
+    setSearchString,
   } = useFetchSessionList();
 
   const { id: dialogId } = useParams();
@@ -38,6 +39,9 @@ export const useSelectDerivedConversationList = () => {
 
   const addTemporaryConversation = useCallback(() => {
     const conversationId = generateConversationId();
+    // Clear the search keyword, otherwise the newly created session will be
+    // filtered out by the search after it is persisted and refetched.
+    setSearchString('');
     setList((pre) => {
       if (dialogId) {
         setConversationBoth(conversationId, 'true');
@@ -61,7 +65,14 @@ export const useSelectDerivedConversationList = () => {
 
       return pre;
     });
-  }, [dialogId, setConversationBoth, t, prologue, conversationList]);
+  }, [
+    dialogId,
+    setConversationBoth,
+    t,
+    prologue,
+    conversationList,
+    setSearchString,
+  ]);
 
   const removeTemporaryConversation = useCallback((conversationId: string) => {
     setList((prevList) => {