diff --git a/apps/jchat/service.py b/apps/jchat/service.py
index 34d26d4..3bccd30 100644
--- a/apps/jchat/service.py
+++ b/apps/jchat/service.py
@@ -7,14 +7,14 @@ from settings import settings
 # 默认模型配置
 default_model = "deepseek"  # 默认使用的模型，可选值为"gpt"、"deepseek"或"doubao"
 gpt_api_model = "gpt-4o"  # ChatGPT模型名称
-deepseek_api_model = "deepseek-chat"  # DeepSeek模型名称
+deepseek_api_model = "deepseek-v4-flash"  # DeepSeek模型名称
 doubao_api_model = "doubao-1-5-thinking-pro-250415"  # Doubao模型名称
 
 # 模型映射配置
 model_mapping = {
     "jingrow-chat": {
         "type": "deepseek",
-        "model": "deepseek-chat"
+        "model": "deepseek-v4-flash"
     },
     "jingrow-chat-lite": {
         "type": "doubao",
diff --git a/apps/jchat/settings.py b/apps/jchat/settings.py
index 6400a92..db1fa57 100644
--- a/apps/jchat/settings.py
+++ b/apps/jchat/settings.py
@@ -23,7 +23,7 @@ class Settings(BaseSettings):
     # DeepSeek配置
     deepseek_api_url: str = "https://api.deepseek.com/v1/chat/completions"
     deepseek_api_key: Optional[str] = None
-    deepseek_api_model: str = "deepseek-chat"
+    deepseek_api_model: str = "deepseek-v4-flash"
 
     # Doubao配置
     doubao_api_url: str = "https://ark.cn-beijing.volces.com/api/v3/chat/completions"