diff --git a/src/pages/api/chat/generate.ts b/src/pages/api/chat/generate.ts
index 3a1c72da1..c425474a6 100644
--- a/src/pages/api/chat/generate.ts
+++ b/src/pages/api/chat/generate.ts
@@ -1,7 +1,8 @@
 import type { NextApiRequest, NextApiResponse } from 'next';
 import { jsonRes } from '@/service/response';
-import { connectToDatabase, Chat } from '@/service/mongo';
+import { connectToDatabase, Model, Chat } from '@/service/mongo';
 import { authToken } from '@/service/utils/tools';
+import type { ModelSchema } from '@/types/mongoSchema';
 
 /* 获取我的模型 */
 export default async function handler(req: NextApiRequest, res: NextApiResponse<any>) {
@@ -24,6 +25,16 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse<
 
     await connectToDatabase();
 
+    // 校验是否为用户的模型
+    const model = await Model.findOne<ModelSchema>({
+      _id: modelId,
+      userId
+    });
+
+    if (!model) {
+      throw new Error('无权使用该模型');
+    }
+
     // 创建 chat 数据
     const response = await Chat.create({
       userId,
diff --git a/src/service/models/chat.ts b/src/service/models/chat.ts
index 9a1b8f0f5..f2cd829f0 100644
--- a/src/service/models/chat.ts
+++ b/src/service/models/chat.ts
@@ -15,7 +15,7 @@ const ChatSchema = new Schema({
   expiredTime: {
     // 过期时间
     type: Number,
-    default: Date.now()
+    default: () => new Date()
   },
   loadAmount: {
     // 剩余加载次数