diff --git a/.env-example b/.env-example
new file mode 100644
index 0000000..63cd9c9
--- /dev/null
+++ b/.env-example
@@ -0,0 +1,18 @@
+# AI项目配置文件
+# API配置
+API_KEY=
+MODEL=
+BASE_URL=
+
+# FastAPI 配置
+FASTAPI_HOST=0.0.0.0
+FASTAPI_PORT=8000
+FASTAPI_DEBUG=True
+
+# LangGraph 配置
+LANGGRAPH_DEBUG=False
+
+# 项目信息
+PROJECT_NAME=AI Agent Project
+PROJECT_VERSION=0.1.0
+
diff --git a/app/config.py b/app/config.py
index 4a9fda3..380d77b 100644
--- a/app/config.py
+++ b/app/config.py
@@ -11,8 +11,8 @@ class Settings(BaseSettings):
 
     # API 配置
     api_key: str
-    model: str = "gemini-3.1-flash"
-    base_url: str = "https://generativelanguage.googleapis.com/v1beta/openai/"
+    model: str
+    base_url: str
 
     # FastAPI 配置
     fastapi_host: str = "0.0.0.0"