diff --git a/tests/frontend_chat_queue.test.mjs b/tests/frontend_chat_queue.test.mjs
index 1923081..8f89b3e 100644
--- a/tests/frontend_chat_queue.test.mjs
+++ b/tests/frontend_chat_queue.test.mjs
@@ -66,3 +66,12 @@ test("composer uses one Codex-style action button for stop and queued send", ()
   assert.match(chat, /void dispatchNextQueuedMessage\(ctx\.taskId\)/);
   assert.match(chat, /removeQueuedMessage\([\s\S]*streamSse\(r\.events_url, run\)/);
 });
+
+test("automatic title polling starts before a long-running response finishes", () => {
+  const chat = readFileSync(new URL("../web/static/js/chat.js", import.meta.url), "utf8");
+  const sendMessage = chat.indexOf("async function sendMessage(");
+  const poll = chat.indexOf("void pollAutoTitle(taskId)", sendMessage);
+  const stream = chat.indexOf("streamSse(r.events_url, run)", sendMessage);
+  assert.ok(poll > sendMessage, "sendMessage should start title polling");
+  assert.ok(poll < stream, "title polling should start before waiting on the SSE run");
+});
diff --git a/web/static/js/chat.js b/web/static/js/chat.js
index 85b3907..12864e9 100644
--- a/web/static/js/chat.js
+++ b/web/static/js/chat.js
@@ -3105,6 +3105,11 @@ async function sendMessage(overrideText) {
     state.streaming = true;
     syncTaskRowRunIndicator(taskId);
     if (state.taskId === taskId) setActionMode("streaming");
+    // 标题生成与主 run 并行，页面也应立即开始观察结果。若等 SSE 收尾才轮询，
+    // 长思考会让已经写入 DB 的标题在 UI 中继续显示数分钟“新对话”。
+    if (run.autoTitleEligible && state.taskMeta?.auto_title_pending) {
+      void pollAutoTitle(taskId);
+    }
     streamSse(r.events_url, run);
   } catch (e) {
     if (e.status === 401) { logout(); return; }