diff --git a/src/components/Setting/Account/index.tsx b/src/components/Setting/Account/index.tsx
index 8bec01a..f99f30e 100755
--- a/src/components/Setting/Account/index.tsx
+++ b/src/components/Setting/Account/index.tsx
@@ -88,7 +88,7 @@ export default function () {
             </Form.Item>
             <Form.Item
               label={t('Model')}
-              name="Model"
+              name="model"
               style={{ marginBottom: 12 }}
             >
               <Select>
diff --git a/src/electron/apis/prompt.ts b/src/electron/apis/prompt.ts
index 5a9335b..ce3cee7 100755
--- a/src/electron/apis/prompt.ts
+++ b/src/electron/apis/prompt.ts
@@ -64,6 +64,12 @@ export default async (req: any, res: any) => {
       res.end()
     })
   } catch (e) {
-    res.write(e)
+    if (e instanceof Error) {
+      res.write(e.message)
+      res.end()
+    } else {
+      res.write(JSON.stringify(e))
+      res.end()
+    }
   }
 }
diff --git a/src/electron/server.ts b/src/electron/server.ts
index a1299c6..3b6d32a 100755
--- a/src/electron/server.ts
+++ b/src/electron/server.ts
@@ -14,6 +14,8 @@ import { getChatList, getPluginPrompt } from './client/store'
 const { Configuration, OpenAIApi } = require('openai')
 const store = new Store()
 let openai = null as any
+let prevBasePath: string
+let prevApiKey: string
 
 function getContextual(prompt: PresetType) {
   const num = (store.get(StoreKey.Set_Contexual) as number) || 0
@@ -62,22 +64,23 @@ export function generatePayload(content: string, prompt: PresetType) {
 }
 
 export function getAiInstance() {
-  if (openai) {
-    return openai
-  }
-
   const basePath = store.get(StoreKey.Set_BasePath) as string
   const apiKey = store.get(StoreKey.Set_ApiKey) as string
-  Logger.log('store apikey', apiKey)
-  Logger.log('basePath', basePath)
+
+  if (openai && prevApiKey === apiKey && prevBasePath === basePath) {
+    return openai
+  }
 
   if (apiKey) {
+    const _basePath = basePath || 'https://closeai.deno.dev'
     openai = new OpenAIApi(
       new Configuration({
         apiKey,
-        basePath: (basePath || 'https://closeai.deno.dev') + '/v1',
+        basePath: _basePath + '/v1',
       })
     )
+    prevApiKey = apiKey
+    prevBasePath = _basePath
     return openai
   }
   return null