diff --git a/backend/app/agent/llm_factory.py b/backend/app/agent/llm_factory.py
index e0ca134..0dbe8ac 100644
--- a/backend/app/agent/llm_factory.py
+++ b/backend/app/agent/llm_factory.py
@@ -51,7 +51,7 @@ class LLMFactory:
 
     # 模型创建器映射
     CREATORS = {
+        "zhipu": create_zhipu,
         "local": create_local,
         "deepseek": create_deepseek,
-        "zhipu": create_zhipu,
     }
\ No newline at end of file
diff --git a/backend/app/agent/service.py b/backend/app/agent/service.py
index 2146daf..6af4c5f 100644
--- a/backend/app/agent/service.py
+++ b/backend/app/agent/service.py
@@ -42,7 +42,7 @@ class AIAgentService:
             raise RuntimeError("没有可用的模型")
         return self
 
-    async def process_message(self, message: str, thread_id: str, model: str = "local", user_id: str = "default_user") -> dict:
+    async def process_message(self, message: str, thread_id: str, model: str = "zhipu", user_id: str = "default_user") -> dict:
         """处理用户消息，返回包含回复、token统计和耗时的字典"""
         if model not in self.graphs:
             # 回退到第一个可用模型
diff --git a/frontend/src/config.py b/frontend/src/config.py
index f9631d5..509855c 100644
--- a/frontend/src/config.py
+++ b/frontend/src/config.py
@@ -51,7 +51,7 @@ class FrontendConfig:
     layout: str = "wide"
     
     # ==================== 模型配置（固定值，无需环境变量） ====================
-    default_model: str = "local"
+    default_model: str = "zhipu"
     model_options: Optional[dict] = None
     
     # ==================== 用户配置（固定值，无需环境变量） ====================
@@ -72,9 +72,9 @@ class FrontendConfig:
         """初始化后处理 - 设置默认值和加载环境变量"""
         if self.model_options is None:
             self.model_options = {
+                "zhipu": "智谱 GLM-4.7-Flash（在线）",
                 "local": "本地 llama.cpp（Gemma-4）",
-                "deepseek": "DeepSeek V3.2（在线）",
-                "zhipu": "智谱 GLM-4.7-Flash（在线）"
+                "deepseek": "DeepSeek V3.2（在线）"
             }
         
         # 从环境变量加载配置（优先级最高）