diff --git a/packages/ui/package.json b/packages/ui/package.json
index ed4cb89..93d3979 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -41,7 +41,8 @@
     "minimist": "^1.2.8",
     "node-machine-id": "^1.1.12",
     "puppeteer": "20.1.0",
-    "puppeteer-extra-plugin-stealth": "2.11.2"
+    "puppeteer-extra-plugin-stealth": "2.11.2",
+    "uuid": "^11.1.0"
   },
   "devDependencies": {
     "@electron-toolkit/eslint-config": "^1.0.2",
diff --git a/packages/ui/src/main/flow/READ_NO_REPLY_AUTO_REMINDER/boss-operation.ts b/packages/ui/src/main/flow/READ_NO_REPLY_AUTO_REMINDER/boss-operation.ts
index a0dc5f1..3a7a8c3 100644
--- a/packages/ui/src/main/flow/READ_NO_REPLY_AUTO_REMINDER/boss-operation.ts
+++ b/packages/ui/src/main/flow/READ_NO_REPLY_AUTO_REMINDER/boss-operation.ts
@@ -24,26 +24,27 @@ export const sendLookForwardReplyEmotion = async (page: Page) => {
   await lookForwardReplyEmojiProxy!.click()
 }
 
+const blockModelSet = new Set()
 const pickLlmConfigFromList = (llmConfigList) => {
   if (llmConfigList.length === 1) {
     llmConfigList[0].enabled = true
     llmConfigList[0].serveWeight = SINGLE_ITEM_DEFAULT_SERVE_WEIGHT
-    return llmConfigList[0]
   }
-  llmConfigList = llmConfigList.filter((it) => it.enabled)
+  llmConfigList = llmConfigList.filter((it) => it.enabled && !blockModelSet.has(it.id))
+  if (!llmConfigList.length) {
+    return null
+  }
   const pool: number[] = []
   for (let i = 0; i < llmConfigList.length; i++) {
     for (let j = 0; j < Math.floor(llmConfigList[i].serveWeight); j++) {
-      pool.push(i)
+      pool.push(llmConfigList[i].id)
     }
   }
   if (!pool.length) {
-    throw new Error(`cannot find a usable model`)
+    return null
   }
   const index = Math.floor(pool.length * Math.random())
-  return llmConfigList[
-    pool[index]
-  ]
+  return llmConfigList.find(it => it.id === pool[index]) ?? null
 }
 
 // let _index = 0
@@ -135,17 +136,28 @@ export const sendGptContent = async (page: Page, chatRecords) => {
     })
   }
   console.log(chatList)
-  const llmConfigList = await readConfigFile('llm.json')
-  const llmConfig = pickLlmConfigFromList(llmConfigList)
-  console.log(llmConfig.providerCompleteApiUrl)
-  const res = await completes(
-    {
-      baseURL: llmConfig.providerCompleteApiUrl,
-      apiKey: llmConfig.providerApiSecret,
-      model: llmConfig.model
-    },
-    chatList
-  )
+  let res
+  while (!res) {
+    const llmConfigList = await readConfigFile('llm.json')
+    const llmConfig = pickLlmConfigFromList(llmConfigList)
+    if (!llmConfig) {
+      throw new Error(`CANNOT_FIND_A_USABLE_MODEL`);
+    }
+    console.log(llmConfig.providerCompleteApiUrl)
+    try {
+      res = await completes(
+        {
+          baseURL: llmConfig.providerCompleteApiUrl,
+          apiKey: llmConfig.providerApiSecret,
+          model: llmConfig.model
+        },
+        chatList
+      )
+    } catch (err) {
+      console.log('request failed', err)
+      blockModelSet.add(llmConfig.id)
+    }
+  }
   console.log(res)
   // _index++
   let textToSend
diff --git a/packages/ui/src/renderer/src/page/LlmConfig/index.vue b/packages/ui/src/renderer/src/page/LlmConfig/index.vue
index 181d075..e19e5b5 100644
--- a/packages/ui/src/renderer/src/page/LlmConfig/index.vue
+++ b/packages/ui/src/renderer/src/page/LlmConfig/index.vue
@@ -76,7 +76,7 @@
           class="llm-config-form"
           :validate-on-rule-change="false"
         >
-          <div v-for="(conf, index) in formContent" :key="index" class="flex gap12px">
+          <div v-for="(conf, index) in formContent" :key="conf.id" class="flex gap12px">
             <div
               v-if="formContent.length > 1"
               :style="{
@@ -229,7 +229,7 @@
       <div w480px flex flex-justify-between>
         <div>
           <el-button font-size-12px type="text" @click="addConfig"
-            >添加其它模型<span v-if="formContent.length <= 1">，以生成更随机的内容</span></el-button
+            >添加备用模型<span v-if="formContent.length <= 1">，以生成更随机的内容</span></el-button
           >
         </div>
         <div>
@@ -256,8 +256,9 @@ import { ArrowUp, ArrowDown, Delete } from '@element-plus/icons-vue'
 import { ref, onMounted, watch, nextTick, computed } from 'vue'
 import { gtagRenderer } from '@renderer/utils/gtag'
 import { SINGLE_ITEM_DEFAULT_SERVE_WEIGHT } from '../../../../common/constant'
-
+import { v4 as uuid } from 'uuid'
 interface LlmConfigItem {
+  id: string
   providerCompleteApiUrl: string
   providerApiSecret: string
   model: string
@@ -267,6 +268,7 @@ interface LlmConfigItem {
 
 function getNewConfigItem(): LlmConfigItem {
   return {
+    id: uuid(),
     providerCompleteApiUrl: '',
     providerApiSecret: '',
     model: '',
@@ -352,17 +354,20 @@ onMounted(async () => {
   }
   const keyOfItem = Object.keys(getNewConfigItem())
   formContent.value = savedFileContent.map((it) => {
-    const conf = {}
+    const conf: any = {}
     for (const k of keyOfItem) {
       conf[k] = it[k]
     }
+    if (!it.id) {
+      conf.id = uuid()
+    }
     return conf
   })
 })
 
 const llmPresetList: {
   name: string
-  config: LlmConfigItem
+  config: Omit<LlmConfigItem, 'id'>
 }[] = [
   {
     name: '由 DeepSeek 提供的 DeepSeek-V3 模型',
@@ -457,6 +462,9 @@ function handlePresetClick(selected: (typeof llmPresetList)[number], index) {
   for (const k of Object.keys(formContent.value[index])) {
     formContent.value[index][k] = selected.config[k]
   }
+  if (!formContent.value[index].id) {
+    formContent.value[index].id = uuid()
+  }
 }
 
 const firstInputRefList = ref<InstanceType<typeof ElInput>[]>([])
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 419555d..8114f88 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -141,6 +141,9 @@ importers:
       puppeteer-extra-plugin-stealth:
         specifier: 2.11.2
         version: 2.11.2(puppeteer-extra@3.3.6)
+      uuid:
+        specifier: ^11.1.0
+        version: 11.1.0
     devDependencies:
       '@electron-toolkit/eslint-config':
         specifier: ^1.0.2
@@ -6410,6 +6413,11 @@ packages:
   /util-deprecate@1.0.2:
     resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
 
+  /uuid@11.1.0:
+    resolution: {integrity: sha512-0/A9rDy9P7cJ+8w1c9WD9V//9Wj15Ce2MPz8Ri6032usz+NfePxx5AcN3bN+r6ZL6jEo066/yNYB3tn4pQEx+A==}
+    hasBin: true
+    dev: false
+
   /uuid@8.3.2:
     resolution: {integrity: sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==}
     hasBin: true