diff --git a/app/model/BasicModel.py b/app/model/BasicModel.py
new file mode 100644
index 0000000..871a1e1
--- /dev/null
+++ b/app/model/BasicModel.py
@@ -0,0 +1,26 @@
+from datetime import datetime, date
+from datetime import datetime, date
+
+from pydantic import ConfigDict
+from sqlmodel import SQLModel, Field
+
+from app.utils.model_utils import to_camel, format_datetime_to_string, format_date_to_string, FormattedDatetime, current_datetime
+
+
+class BasicModel(SQLModel):
+  # Pydantic V2 的模型配置
+  model_config = ConfigDict(
+    alias_generator=to_camel,  # 使用 to_camel 函数生成别名
+    populate_by_name=True,  # 允许通过原始字段名（snake_case）赋值
+    extra='ignore',  # 忽略模型中未定义的额外字段，避免验证失败
+    json_encoders={
+      datetime: format_datetime_to_string,  # 为 datetime 类型指定自定义的 JSON 编码器
+      date: format_date_to_string  # 为 date 类型指定自定义的 JSON 编码器
+    }
+  )
+
+  id: str | None = Field(default=None, primary_key=True, description="唯一标识，编号")
+  created_at: FormattedDatetime | None = Field(default_factory=current_datetime, description="创建时间")
+  updated_at: FormattedDatetime | None = Field(default_factory=current_datetime, description="更新时间")
+  created_by: str | None = Field(default=None, description="创建人id")
+  updated_by: str | None = Field(default=None, description="更新人id")
diff --git a/app/model/LlmDemoMdel.py b/app/model/LlmDemoMdel.py
index df73c70..19ef31d 100644
--- a/app/model/LlmDemoMdel.py
+++ b/app/model/LlmDemoMdel.py
@@ -1,36 +1,19 @@
 import uuid
-from datetime import datetime, timezone, timedelta, date
 from decimal import Decimal
 from typing import List
 
 from fastapi import FastAPI, APIRouter, HTTPException
-from pydantic import BaseModel, ConfigDict
-from sqlmodel import SQLModel, Field, select
+from pydantic import BaseModel
+from sqlmodel import Field, select
 
-from app.utils.model_utils import to_camel, format_datetime_to_string, format_date_to_string, FormattedDatetime, FormattedDate, current_datetime, FormattedDecimal
+from app.model.BasicModel import BasicModel
+from app.utils.model_utils import FormattedDatetime, FormattedDate, FormattedDecimal
 from app.utils.mysql_utils import AsyncSessionDep
 
 
-class LlmDemoModel(SQLModel, table=True):
-  # Pydantic V2 的模型配置
-  model_config = ConfigDict(
-    alias_generator=to_camel,  # 使用 to_camel 函数生成别名
-    populate_by_name=True,  # 允许通过原始字段名（snake_case）赋值
-    extra='ignore',  # 忽略模型中未定义的额外字段，避免验证失败
-    json_encoders={
-      datetime: format_datetime_to_string,  # 为 datetime 类型指定自定义的 JSON 编码器
-      date: format_date_to_string  # 为 date 类型指定自定义的 JSON 编码器
-    }
-  )
-
+class LlmDemoModel(BasicModel, table=True):
   __tablename__ = "llm_demo"
 
-  id: str | None = Field(default=None, primary_key=True, description="唯一标识，编号")
-  created_at: FormattedDatetime | None = Field(default_factory=current_datetime, description="创建时间")
-  updated_at: FormattedDatetime | None = Field(default_factory=current_datetime, description="更新时间")
-  created_by: str | None = Field(default=None, description="创建人id")
-  updated_by: str | None = Field(default=None, description="更新人id")
-
   full_name: str | None = Field(default=None, description="用户名称")
   datetime_start: FormattedDatetime | None = Field(default=None, description="开通会员时间")
   datetime_end: FormattedDatetime | None = Field(default=None, description="会员截止到期时间")