diff --git a/CloudServer/public/generator.html b/CloudServer/public/generator.html
index 4f84609..b1fa171 100644
--- a/CloudServer/public/generator.html
+++ b/CloudServer/public/generator.html
@@ -719,8 +719,9 @@
     <div class="toast-container" id="toast-container"></div>
 
     <script>
-        const ZH_MODEL = "7b64d954530d490a8c40827e618e55c6";
-        const EN_MODEL = "fe09163b345448eabfeccb25dc435c43";
+        const TTS_MODEL = "s2.1-pro-free";
+        const ZH_REFERENCE_ID = "0aee9f0f5683480d987c9e3c5d2de04c";
+        const EN_REFERENCE_ID = "38985e545cff41b79c11c32b0196c9a0";
 
         let zhTempFile = null;
         let enTempFile = null;
@@ -821,7 +822,7 @@
             const res = await fetch('/api/tts/generate', {
                 method: 'POST',
                 headers: { 'Content-Type': 'application/json' },
-                body: JSON.stringify({ text, reference_id })
+                body: JSON.stringify({ text, reference_id, model: TTS_MODEL })
             });
             const data = await res.json();
             if (!data.success) throw new Error(data.message);
@@ -1110,7 +1111,8 @@
                     },
                     body: JSON.stringify({
                         text: zhText,
-                        reference_id: ZH_MODEL
+                        reference_id: ZH_REFERENCE_ID,
+                        model: TTS_MODEL
                     })
                 });
                 
@@ -1127,7 +1129,8 @@
                     },
                     body: JSON.stringify({
                         text: enText,
-                        reference_id: EN_MODEL
+                        reference_id: EN_REFERENCE_ID,
+                        model: TTS_MODEL
                     })
                 });
                 
diff --git a/CloudServer/public/tempbroadcast.html b/CloudServer/public/tempbroadcast.html
index 8f553d1..cc191fc 100644
--- a/CloudServer/public/tempbroadcast.html
+++ b/CloudServer/public/tempbroadcast.html
@@ -235,7 +235,8 @@
     </div>
 
     <script>
-        const ZH_MODEL = "7b64d954530d490a8c40827e618e55c6";
+        const TTS_MODEL = "s2.1-pro-free";
+        const ZH_REFERENCE_ID = "0aee9f0f5683480d987c9e3c5d2de04c";
         let state = {
             broadcastId: null,
             broadcastUrl: null
@@ -335,7 +336,12 @@
                 const resp = await fetch("/api/temp-broadcast/compose", {
                     method: "POST",
                     headers: { "Content-Type": "application/json" },
-                    body: JSON.stringify({ text, reference_id: ZH_MODEL, prefixName: "lsts" })
+                    body: JSON.stringify({
+                        text,
+                        reference_id: ZH_REFERENCE_ID,
+                        model: TTS_MODEL,
+                        prefixName: "lsts"
+                    })
                 });
                 const data = await resp.json();
                 if (!data || !data.success) throw new Error(data?.message || "合成失败");
diff --git a/CloudServer/server.js b/CloudServer/server.js
index b40c2bc..d72e508 100644
--- a/CloudServer/server.js
+++ b/CloudServer/server.js
@@ -16,7 +16,9 @@ const server = http.createServer(app);
 const wss = new WebSocket.Server({ server });
 
 const PORT = Number(process.env.PORT || '8999');
-const DEFAULT_ZH_MODEL = process.env.ZH_MODEL || '7b64d954530d490a8c40827e618e55c6';
+const DEFAULT_TTS_MODEL = process.env.TTS_MODEL || 's2.1-pro-free';
+const DEFAULT_ZH_REFERENCE_ID = process.env.ZH_REFERENCE_ID || '0aee9f0f5683480d987c9e3c5d2de04c';
+const DEFAULT_EN_REFERENCE_ID = process.env.EN_REFERENCE_ID || '38985e545cff41b79c11c32b0196c9a0';
 
 const HLS_ENABLE = process.env.HLS_ENABLE !== '0';
 const HLS_STREAM_MODE = (process.env.HLS_STREAM_MODE || 'event').toLowerCase();
@@ -2265,12 +2267,13 @@ function requestDirect(urlStr, options) {
     });
 }
 
-async function generateTtsWavToTemp(text, reference_id) {
+async function generateTtsWavToTemp(text, reference_id, model = DEFAULT_TTS_MODEL) {
     const proxyUrl = process.env.HTTP_PROXY || process.env.http_proxy || process.env.HTTPS_PROXY || process.env.https_proxy || process.env.ALL_PROXY || process.env.all_proxy;
 
     const requestBody = JSON.stringify({
         text: text,
         reference_id: reference_id,
+        model: model,
         format: "wav"
     });
 
@@ -2305,16 +2308,20 @@ async function generateTtsWavToTemp(text, reference_id) {
 }
 
 app.post('/api/tts/generate', express.json(), async (req, res) => {
-    const { text, reference_id } = req.body;
+    const text = String(req.body?.text || '').trim();
+    const reference_id = String(req.body?.reference_id || '').trim();
+    const model = String(req.body?.model || DEFAULT_TTS_MODEL).trim();
     if (!text || !reference_id) return res.status(400).json({ success: false, message: 'Missing text or reference_id' });
+    if (!model) return res.status(400).json({ success: false, message: 'Missing model' });
     
     try {
         const proxyUrl = process.env.HTTP_PROXY || process.env.http_proxy || process.env.HTTPS_PROXY || process.env.https_proxy || process.env.ALL_PROXY || process.env.all_proxy;
-        console.log(`[TTS] Sending request for text: "${text}"${proxyUrl ? ` via proxy: ${proxyUrl}` : ''}`);
+        console.log(`[TTS] Sending request for text: "${text}" with model "${model}"${proxyUrl ? ` via proxy: ${proxyUrl}` : ''}`);
 
         const requestBody = JSON.stringify({
             text: text,
             reference_id: reference_id,
+            model: model,
             format: "wav"
         });
 
@@ -2482,17 +2489,19 @@ app.post('/api/temp-broadcast/build', (req, res) => {
 
 app.post('/api/temp-broadcast/compose', express.json(), async (req, res) => {
     const text = String(req.body?.text || '').trim();
-    const reference_id = String(req.body?.reference_id || DEFAULT_ZH_MODEL).trim();
+    const reference_id = String(req.body?.reference_id || DEFAULT_ZH_REFERENCE_ID).trim();
+    const model = String(req.body?.model || DEFAULT_TTS_MODEL).trim();
     const prefixName = String(req.body?.prefixName || 'lsts').trim();
     if (!text) return res.status(400).json({ success: false, message: 'text required' });
     if (!reference_id) return res.status(400).json({ success: false, message: 'reference_id required' });
+    if (!model) return res.status(400).json({ success: false, message: 'model required' });
 
     const prefixWavPath = findWavByBaseName(prefixName);
     if (!prefixWavPath) return res.status(404).json({ success: false, message: `Prefix wav not found: ${prefixName}.wav` });
 
     let ttsTempPath = null;
     try {
-        const tts = await generateTtsWavToTemp(text, reference_id);
+        const tts = await generateTtsWavToTemp(text, reference_id, model);
         ttsTempPath = tts.tempPath;
         const built = buildTempBroadcastFromWav(prefixWavPath, ttsTempPath);
         try { fs.unlinkSync(ttsTempPath); } catch {}