diff --git a/src/main/java/com/yolo/keyborad/config/AppConfig.java b/src/main/java/com/yolo/keyborad/config/AppConfig.java
index 6dd8bec..69032ff 100644
--- a/src/main/java/com/yolo/keyborad/config/AppConfig.java
+++ b/src/main/java/com/yolo/keyborad/config/AppConfig.java
@@ -24,6 +24,8 @@ public class AppConfig {
 
     private skipUser skipUser = new skipUser();
 
+    private LLmModel llmModel = new LLmModel();
+
     @Data
     public static class UserRegisterProperties {
 
@@ -73,4 +75,9 @@ public class AppConfig {
     public static class customerMailConfig{
         private String customerMail = "";
     }
+
+    @Data
+    public static class LLmModel{
+        private String model = "";
+    }
 }
diff --git a/src/main/java/com/yolo/keyborad/config/LLMConfig.java b/src/main/java/com/yolo/keyborad/config/LLMConfig.java
index a7abaae..8baa5b6 100644
--- a/src/main/java/com/yolo/keyborad/config/LLMConfig.java
+++ b/src/main/java/com/yolo/keyborad/config/LLMConfig.java
@@ -24,12 +24,16 @@ import java.util.Map;
 @Configuration
 public class LLMConfig {
 
+    private final NacosAppConfigCenter.DynamicAppConfig cfgHolder;
+
     @Value("${spring.ai.openai.api-key}")
     private String apiKey;
     @Value("${spring.ai.openai.base-url}")
     private String baseUrl;
-    @Value("${spring.ai.openai.chat.options.model}")
-    private String openRouterChatModel;
+
+    public LLMConfig(NacosAppConfigCenter.DynamicAppConfig cfgHolder) {
+        this.cfgHolder = cfgHolder;
+    }
 
     @Bean
     public OpenAiApi openAiApi() {
@@ -44,7 +48,7 @@ public class LLMConfig {
     public ChatClient chatClient(ChatModel geminiModel) {
         return ChatClient.builder(geminiModel)
                 .defaultOptions(OpenAiChatOptions.builder()
-                        .model(openRouterChatModel)
+                        .model(getConfiguredChatModel())
                         .build())
                 .build();
     }
@@ -64,4 +68,9 @@ public class LLMConfig {
                 RetryUtils.DEFAULT_RETRY_TEMPLATE);
     }
 
+    private String getConfiguredChatModel() {
+        AppConfig appConfig = cfgHolder.getRef().get();
+        return appConfig.getLlmModel().getModel();
+    }
+
 }
diff --git a/src/main/java/com/yolo/keyborad/service/impl/ChatServiceImpl.java b/src/main/java/com/yolo/keyborad/service/impl/ChatServiceImpl.java
index ecf979a..310e827 100644
--- a/src/main/java/com/yolo/keyborad/service/impl/ChatServiceImpl.java
+++ b/src/main/java/com/yolo/keyborad/service/impl/ChatServiceImpl.java
@@ -213,9 +213,7 @@ public class ChatServiceImpl implements ChatService {
                 // 设置用户消息
                 .user(chatReq.getMessage())
                 // 配置OpenAI选项
-                .options(OpenAiChatOptions.builder()
-                        .user(StpUtil.getLoginIdAsString())
-                        .build())
+                .options(buildChatOptions(StpUtil.getLoginIdAsString()))
                 // 启用流式响应
                 .stream()
                 .chatResponse()
@@ -517,10 +515,19 @@ public class ChatServiceImpl implements ChatService {
                 .prompt()
                 .system(systemPrompt)
                 .messages(messages)
+                .options(buildChatOptions(null))
                 .call()
                 .content();
     }
 
+    private OpenAiChatOptions buildChatOptions(String user) {
+        AppConfig appConfig = cfgHolder.getRef().get();
+        return OpenAiChatOptions.builder()
+                .model(appConfig.getLlmModel().getModel())
+                .user(user)
+                .build();
+    }
+
     /**
      * 异步处理音频：TTS 转换 + 上传 R2
      */
diff --git a/src/test/java/com/yolo/keyborad/test.java b/src/test/java/com/yolo/keyborad/test.java
index 49cf1b5..72a64d0 100644
--- a/src/test/java/com/yolo/keyborad/test.java
+++ b/src/test/java/com/yolo/keyborad/test.java
@@ -1,11 +1,13 @@
 package com.yolo.keyborad;
 
 import com.apple.itunes.storekit.signature.JWSSignatureCreator;
+import org.springframework.util.StringUtils;
 
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Paths;
+import java.util.Locale;
 import java.util.UUID;
 
 /*
@@ -14,19 +16,43 @@ import java.util.UUID;
  */
 public class test {
     public static void main(String[] args) throws Exception {
-        try {
-            String jwt = AppStoreJWT.generateJWT();
+//        try {
+//            String jwt = AppStoreJWT.generateJWT();
+//
+//            URL url = new URL("https://api.storekit.itunes.apple.com/inApps/v1/subscriptions"); // 你需要访问的 Apple API URL
+//            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+//            connection.setRequestMethod("GET");
+//            connection.setRequestProperty("Authorization", "Bearer " + jwt); // 设置 JWT 为 Bearer Token
+//
+//            // 处理响应
+//            int responseCode = connection.getResponseCode();
+//            System.out.println("Response Code: " + responseCode);
+//        } catch (Exception e) {
+//            e.printStackTrace();
+//        }
+        System.out.println(resolveLanguage("zh-Hant-Bopomofo"));
+    }
 
-            URL url = new URL("https://api.storekit.itunes.apple.com/inApps/v1/subscriptions"); // 你需要访问的 Apple API URL
-            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-            connection.setRequestMethod("GET");
-            connection.setRequestProperty("Authorization", "Bearer " + jwt); // 设置 JWT 为 Bearer Token
-
-            // 处理响应
-            int responseCode = connection.getResponseCode();
-            System.out.println("Response Code: " + responseCode);
-        } catch (Exception e) {
-            e.printStackTrace();
+    public static String resolveLanguage(String acceptLanguage) {
+        if (!StringUtils.hasText(acceptLanguage)) {
+            return defaultLanguage();
         }
+
+        String preferredLanguage = acceptLanguage.split(",")[0].split(";")[0].trim();
+        if (!StringUtils.hasText(preferredLanguage)) {
+            return defaultLanguage();
+        }
+
+        String normalizedTag = preferredLanguage.replace('_', '-');
+        Locale locale = Locale.forLanguageTag(normalizedTag);
+        String resolvedTag = locale.toLanguageTag();
+        if (!StringUtils.hasText(resolvedTag) || "und".equalsIgnoreCase(resolvedTag)) {
+            return normalizedTag;
+        }
+        return resolvedTag;
+    }
+
+    private static String defaultLanguage() {
+        return Locale.getDefault().getLanguage().toLowerCase(Locale.ROOT);
     }
 }