diff --git a/docSite/content/zh-cn/docs/development/upgrading/4820.md b/docSite/content/zh-cn/docs/development/upgrading/4820.md
index 5da394a42fc4..07f86b464d06 100644
--- a/docSite/content/zh-cn/docs/development/upgrading/4820.md
+++ b/docSite/content/zh-cn/docs/development/upgrading/4820.md
@@ -34,4 +34,5 @@ curl --location --request POST 'https://{{host}}/api/admin/initv4820' \
 2. 新增 - 使用记录导出和仪表盘。
 3. 新增 - markdown 语法扩展，支持音视频（代码块 audio 和 video）。
 4. 优化 - 页面组件抽离，减少页面组件路由。
-5. 优化 - 全文检索，忽略大小写。
\ No newline at end of file
+5. 优化 - 全文检索，忽略大小写。
+6. 优化 - 问答生成和增强索引改成流输出，避免部分模型超时。
\ No newline at end of file
diff --git a/packages/service/core/ai/utils.ts b/packages/service/core/ai/utils.ts
index aad1cb1efeab..74b4e718f919 100644
--- a/packages/service/core/ai/utils.ts
+++ b/packages/service/core/ai/utils.ts
@@ -2,7 +2,8 @@ import { LLMModelItemType } from '@fastgpt/global/core/ai/model.d';
 import {
   ChatCompletionCreateParamsNonStreaming,
   ChatCompletionCreateParamsStreaming,
-  ChatCompletionMessageParam
+  ChatCompletionMessageParam,
+  StreamChatType
 } from '@fastgpt/global/core/ai/type';
 import { countGptMessagesTokens } from '../../common/string/tiktoken';
 import { getLLMModel } from './model';
@@ -87,3 +88,12 @@ export const llmCompletionsBodyFormat = <T extends CompletionsBodyType>(
 
   return requestBody as InferCompletionsBody<T>;
 };
+
+export const llmStreamResponseToText = async (response: StreamChatType) => {
+  let answer = '';
+  for await (const part of response) {
+    const content = part.choices?.[0]?.delta?.content || '';
+    answer += content;
+  }
+  return answer;
+};
diff --git a/packages/web/hooks/useRequest.tsx b/packages/web/hooks/useRequest.tsx
index 4e2346ed1623..ff7d6efbc841 100644
--- a/packages/web/hooks/useRequest.tsx
+++ b/packages/web/hooks/useRequest.tsx
@@ -63,7 +63,7 @@ export const useRequest2 = <TData, TParams extends any[]>(
       ...rest,
       onError: (err, params) => {
         rest?.onError?.(err, params);
-        if (errorToast !== undefined) {
+        if (errorToast !== '') {
           const errText = t(getErrText(err, errorToast || '') as any);
           if (errText) {
             toast({
diff --git a/packages/web/i18n/en/common.json b/packages/web/i18n/en/common.json
index 1fe98c8c4c87..5b1fbbd32823 100644
--- a/packages/web/i18n/en/common.json
+++ b/packages/web/i18n/en/common.json
@@ -93,10 +93,10 @@
   "code_error.team_error.org_parent_not_exist": "Parent organization does not exist",
   "code_error.team_error.over_size": "error.team.overSize",
   "code_error.team_error.plugin_amount_not_enough": "Plugin Limit Reached",
-  "code_error.team_error.re_rank_not_enough": "Unauthorized to Use Re-Rank",
+  "code_error.team_error.re_rank_not_enough": "Search rearrangement cannot be used in the free version~",
   "code_error.team_error.un_auth": "Unauthorized to Operate This Team",
   "code_error.team_error.user_not_active": "The user did not accept or has left the team",
-  "code_error.team_error.website_sync_not_enough": "Unauthorized to Use Website Sync",
+  "code_error.team_error.website_sync_not_enough": "The free version cannot be synchronized with the web site ~",
   "code_error.token_error_code.403": "Invalid Login Status, Please Re-login",
   "code_error.user_error.balance_not_enough": "Insufficient Account Balance",
   "code_error.user_error.bin_visitor_guest": "You Are Currently a Guest, Unauthorized to Operate",
diff --git a/packages/web/i18n/zh-CN/common.json b/packages/web/i18n/zh-CN/common.json
index fdbe61c45ebc..c79e0fa0f51d 100644
--- a/packages/web/i18n/zh-CN/common.json
+++ b/packages/web/i18n/zh-CN/common.json
@@ -97,10 +97,10 @@
   "code_error.team_error.org_parent_not_exist": "父部门不存在",
   "code_error.team_error.over_size": "error.team.overSize",
   "code_error.team_error.plugin_amount_not_enough": "插件数量已达上限~",
-  "code_error.team_error.re_rank_not_enough": "无权使用检索重排~",
+  "code_error.team_error.re_rank_not_enough": "免费版无法使用检索重排~",
   "code_error.team_error.un_auth": "无权操作该团队",
   "code_error.team_error.user_not_active": "用户未接受或已离开团队",
-  "code_error.team_error.website_sync_not_enough": "无权使用Web站点同步~",
+  "code_error.team_error.website_sync_not_enough": "免费版无法使用Web站点同步~",
   "code_error.token_error_code.403": "登录状态无效，请重新登录",
   "code_error.user_error.balance_not_enough": "账号余额不足~",
   "code_error.user_error.bin_visitor_guest": "您当前身份为游客，无权操作",
diff --git a/packages/web/i18n/zh-Hant/common.json b/packages/web/i18n/zh-Hant/common.json
index da6880e7b7e9..bab85faa0419 100644
--- a/packages/web/i18n/zh-Hant/common.json
+++ b/packages/web/i18n/zh-Hant/common.json
@@ -92,10 +92,10 @@
   "code_error.team_error.org_parent_not_exist": "父組織不存在",
   "code_error.team_error.over_size": "error.team.overSize",
   "code_error.team_error.plugin_amount_not_enough": "已達外掛程式數量上限",
-  "code_error.team_error.re_rank_not_enough": "無權使用結果重新排名",
+  "code_error.team_error.re_rank_not_enough": "免費版無法使用檢索重排~",
   "code_error.team_error.un_auth": "無權操作此團隊",
   "code_error.team_error.user_not_active": "使用者未接受或已離開團隊",
-  "code_error.team_error.website_sync_not_enough": "無權使用網站同步",
+  "code_error.team_error.website_sync_not_enough": "免費版無法使用Web站點同步~",
   "code_error.token_error_code.403": "登入狀態無效，請重新登入",
   "code_error.user_error.balance_not_enough": "帳戶餘額不足",
   "code_error.user_error.bin_visitor_guest": "您目前身份為訪客，無權操作",
diff --git a/projects/app/public/docs/versionIntro.md b/projects/app/public/docs/versionIntro.md
index 396b88876b0e..078daa220216 100644
--- a/projects/app/public/docs/versionIntro.md
+++ b/projects/app/public/docs/versionIntro.md
@@ -1,21 +1,12 @@
-### FastGPT V4.8.16 更新说明
-
-1. 新增 - SearXNG 搜索插件[点击查看教程](https://doc.fastgpt.cn//docs/guide/plugins/searxng_plugin_guide/)
-2. 新增 - 商业版支持 API 知识库和链接集合定时同步。
-3. 新增 - 猜你想问支持选择模型和自定义提示词。
-4. 新增 - 钉钉和企微机器人 webhook 插件。
-5. 新增 - 商业版支持钉钉 SSO 登录配置。[点击查看教程](https://doc.fastgpt.cn//docs/guide/admin/sso_dingtalk/)
-6. 新增 - 商业版支持飞书和语雀知识库导入。[点击查看教程](https://doc.fastgpt.cn//docs/guide/knowledge_base/lark_dataset/)
-7. 新增 - sandbox 新增 createHmac 加密全局方法。
-8. 新增 - 工作流右键支持全部折叠。
-9. 优化 - 工作流/简易模式变量初始化代码，去除监听初始化，避免因渲染顺序不一致导致的失败。
-10. 优化 - 工作流获取数据类型不一致数据时，增加类型转化，避免 undefined。
-11. 修复 - 无法自动切换默认语言。增加分享链接，强制执行一次切换默认语言。
-12. 修复 - 数组选择器自动兼容 4.8.13 以前的数据。
-13. 修复 - 站点同步知识库，链接同步时未使用选择器。
-14. 修复 - 简易模式转工作流，没有把系统配置项转化。
-15. 修复 - 插件独立运行，变量初始值未赋上。
-16. 修复 - 工作流使用弹窗组件时，关闭弹窗后，有时候会出现页面偏移。
-17. 修复 - 插件调试时，日志未保存插件输入参数。
+### FastGPT V4.8.20 更新说明
 
+1. 新增 - 使用记录导出和仪表盘。
+2. 新增 - markdown 语法扩展，支持音视频（代码块 audio 和 video）。
+3. 新增 - 飞书/语雀知识库。
+4. 新增 - 工作流知识库检索支持按知识库权限进行过滤。
+5. 新增 - 流程等待插件，可以等待 n 毫秒后继续执行流程。
+6. 新增 - 飞书机器人接入，支持配置私有化飞书地址。
+7. 新增 - 支持通过 JSON 配置直接创建应用。
+8. 新增 - 支持通过 CURL 脚本快速创建 HTTP 插件。
+9. 新增 - 支持部门架构权限模式。
 
diff --git a/projects/app/src/components/support/wallet/NotSufficientModal/index.tsx b/projects/app/src/components/support/wallet/NotSufficientModal/index.tsx
index 551bc43af28c..9b82c0a45241 100644
--- a/projects/app/src/components/support/wallet/NotSufficientModal/index.tsx
+++ b/projects/app/src/components/support/wallet/NotSufficientModal/index.tsx
@@ -29,7 +29,10 @@ const NotSufficientModal = ({ type }: { type: NotSufficientModalType }) => {
     [TeamErrEnum.datasetSizeNotEnough]: t('common:support.wallet.Dataset_not_sufficient'),
     [TeamErrEnum.datasetAmountNotEnough]: t('common:support.wallet.Dataset_amount_not_sufficient'),
     [TeamErrEnum.teamMemberOverSize]: t('common:support.wallet.Team_member_over_size'),
-    [TeamErrEnum.appAmountNotEnough]: t('common:support.wallet.App_amount_not_sufficient')
+    [TeamErrEnum.appAmountNotEnough]: t('common:support.wallet.App_amount_not_sufficient'),
+    [TeamErrEnum.pluginAmountNotEnough]: t('common:support.wallet.App_amount_not_sufficient'),
+    [TeamErrEnum.websiteSyncNotEnough]: t('common:code_error.team_error.website_sync_not_enough'),
+    [TeamErrEnum.reRankNotEnough]: t('common:code_error.team_error.re_rank_not_enough')
   };
 
   return (
diff --git a/projects/app/src/components/support/wallet/QRCodePayModal.tsx b/projects/app/src/components/support/wallet/QRCodePayModal.tsx
index c2db2fd8e461..306ab1a3481b 100644
--- a/projects/app/src/components/support/wallet/QRCodePayModal.tsx
+++ b/projects/app/src/components/support/wallet/QRCodePayModal.tsx
@@ -4,9 +4,9 @@ import { useTranslation } from 'next-i18next';
 import { Box, ModalBody } from '@chakra-ui/react';
 import { checkBalancePayResult } from '@/web/support/wallet/bill/api';
 import { useToast } from '@fastgpt/web/hooks/useToast';
-import { getErrText } from '@fastgpt/global/common/error/utils';
 import LightTip from '@fastgpt/web/components/common/LightTip';
 import QRCode from 'qrcode';
+import { useRequest2 } from '@fastgpt/web/hooks/useRequest';
 
 export type QRPayProps = {
   readPrice: number;
@@ -54,35 +54,16 @@ const QRCodePayModal = ({
     drawCode();
   }, [drawCode]);
 
-  useEffect(() => {
-    let timer: NodeJS.Timeout;
-    const check = async () => {
-      try {
-        const res = await checkBalancePayResult(billId);
-        if (res) {
-          try {
-            await onSuccess?.();
-            toast({
-              title: res,
-              status: 'success'
-            });
-            return clearTimeout(timer);
-          } catch (error) {
-            toast({
-              title: getErrText(error),
-              status: 'error'
-            });
-          }
-        }
-      } catch (error) {}
-      clearTimeout(timer);
-      timer = setTimeout(check, 2000);
-    };
-
-    check();
-
-    return () => clearTimeout(timer);
-  }, [billId, drawCode, onSuccess, toast]);
+  useRequest2(() => checkBalancePayResult(billId), {
+    manual: false,
+    pollingInterval: 2000,
+    onSuccess: (res) => {
+      if (res) {
+        onSuccess?.();
+      }
+    },
+    errorToast: ''
+  });
 
   return (
     <MyModal isOpen title={t('common:user.Pay')} iconSrc="/imgs/modal/pay.svg">
diff --git a/projects/app/src/service/events/generateQA.ts b/projects/app/src/service/events/generateQA.ts
index 0824e317e974..fc213f83f815 100644
--- a/projects/app/src/service/events/generateQA.ts
+++ b/projects/app/src/service/events/generateQA.ts
@@ -18,7 +18,7 @@ import {
 } from '@fastgpt/service/common/string/tiktoken/index';
 import { pushDataListToTrainingQueueByCollectionId } from '@fastgpt/service/core/dataset/training/controller';
 import { loadRequestMessages } from '@fastgpt/service/core/chat/utils';
-import { llmCompletionsBodyFormat } from '@fastgpt/service/core/ai/utils';
+import { llmCompletionsBodyFormat, llmStreamResponseToText } from '@fastgpt/service/core/ai/utils';
 
 const reduceQueue = () => {
   global.qaQueueLen = global.qaQueueLen > 0 ? global.qaQueueLen - 1 : 0;
@@ -44,7 +44,7 @@ export async function generateQA(): Promise<any> {
         {
           mode: TrainingModeEnum.qa,
           retryCount: { $gte: 0 },
-          lockTime: { $lte: addMinutes(new Date(), -6) }
+          lockTime: { $lte: addMinutes(new Date(), -10) }
         },
         {
           lockTime: new Date(),
@@ -120,12 +120,12 @@ ${replaceVariable(Prompt_AgentQA.fixedText, { text })}`;
           model: modelData.model,
           temperature: 0.3,
           messages: await loadRequestMessages({ messages, useVision: false }),
-          stream: false
+          stream: true
         },
         modelData
       )
     });
-    const answer = chatResponse.choices?.[0].message?.content || '';
+    const answer = await llmStreamResponseToText(chatResponse);
 
     const qaArr = formatSplitText(answer, text); // 格式化后的QA对
 
diff --git a/projects/app/src/service/events/generateVector.ts b/projects/app/src/service/events/generateVector.ts
index a9d72ed13147..92ea0451c82f 100644
--- a/projects/app/src/service/events/generateVector.ts
+++ b/projects/app/src/service/events/generateVector.ts
@@ -40,7 +40,7 @@ export async function generateVector(): Promise<any> {
         {
           mode: TrainingModeEnum.chunk,
           retryCount: { $gte: 0 },
-          lockTime: { $lte: addMinutes(new Date(), -6) }
+          lockTime: { $lte: addMinutes(new Date(), -3) }
         },
         {
           lockTime: new Date(),
diff --git a/projects/app/src/web/common/api/request.ts b/projects/app/src/web/common/api/request.ts
index 009dd5c45066..20bbe2010fb2 100644
--- a/projects/app/src/web/common/api/request.ts
+++ b/projects/app/src/web/common/api/request.ts
@@ -101,6 +101,7 @@ function checkRes(data: ResponseDataType) {
  */
 function responseError(err: any) {
   console.log('error->', '请求错误', err);
+  const data = err?.response?.data || err;
 
   if (!err) {
     return Promise.reject({ message: '未知错误' });
@@ -108,8 +109,12 @@ function responseError(err: any) {
   if (typeof err === 'string') {
     return Promise.reject({ message: err });
   }
+  if (typeof data === 'string') {
+    return Promise.reject(data);
+  }
+
   // 有报错响应
-  if (err?.code in TOKEN_ERROR_CODE || err?.response?.data?.code in TOKEN_ERROR_CODE) {
+  if (data?.code in TOKEN_ERROR_CODE) {
     if (!['/chat/share', '/chat/team', '/login'].includes(window.location.pathname)) {
       clearToken();
       window.location.replace(
@@ -120,18 +125,18 @@ function responseError(err: any) {
     return Promise.reject({ message: i18nT('common:unauth_token') });
   }
   if (
-    err?.statusText === TeamErrEnum.aiPointsNotEnough ||
-    err?.statusText === TeamErrEnum.datasetSizeNotEnough ||
-    err?.statusText === TeamErrEnum.datasetAmountNotEnough ||
-    err?.statusText === TeamErrEnum.appAmountNotEnough
+    data?.statusText === TeamErrEnum.aiPointsNotEnough ||
+    data?.statusText === TeamErrEnum.datasetSizeNotEnough ||
+    data?.statusText === TeamErrEnum.datasetAmountNotEnough ||
+    data?.statusText === TeamErrEnum.appAmountNotEnough ||
+    data?.statusText === TeamErrEnum.pluginAmountNotEnough ||
+    data?.statusText === TeamErrEnum.websiteSyncNotEnough ||
+    data?.statusText === TeamErrEnum.reRankNotEnough
   ) {
-    useSystemStore.getState().setNotSufficientModalType(err.statusText);
-    return Promise.reject(err);
-  }
-  if (err?.response?.data) {
-    return Promise.reject(err?.response?.data);
+    useSystemStore.getState().setNotSufficientModalType(data.statusText);
+    return Promise.reject(data);
   }
-  return Promise.reject(err);
+  return Promise.reject(data);
 }
 
 /* 创建请求实例 */
diff --git a/projects/app/src/web/context/useInitApp.ts b/projects/app/src/web/context/useInitApp.ts
index a705e36459d8..4b32a7c88b16 100644
--- a/projects/app/src/web/context/useInitApp.ts
+++ b/projects/app/src/web/context/useInitApp.ts
@@ -63,7 +63,7 @@ export const useInitApp = () => {
 
   useRequest2(initFetch, {
     manual: false,
-    pollingInterval: 300000
+    pollingInterval: 300000 // 5 minutes refresh
   });
 
   useEffect(() => {