diff --git a/web/src/components/llm-setting-items/next.tsx b/web/src/components/llm-setting-items/next.tsx
index e6455b727..c3fb3e3bb 100644
--- a/web/src/components/llm-setting-items/next.tsx
+++ b/web/src/components/llm-setting-items/next.tsx
@@ -102,8 +102,8 @@ export function LlmSettingFieldItems({
         control={form.control}
         name={'parameter'}
         render={({ field }) => (
-          <FormItem>
-            <FormLabel>{t('freedom')}</FormLabel>
+          <FormItem className="flex justify-between items-center">
+            <FormLabel className="flex-1">{t('freedom')}</FormLabel>
             <FormControl>
               <Select
                 {...field}
@@ -112,7 +112,7 @@ export function LlmSettingFieldItems({
                   field.onChange(val);
                 }}
               >
-                <SelectTrigger>
+                <SelectTrigger className="flex-1 !m-0">
                   <SelectValue />
                 </SelectTrigger>
                 <SelectContent>
diff --git a/web/src/components/message-item/index.less b/web/src/components/message-item/index.less
index 3d36d7ca8..01a2f544e 100644
--- a/web/src/components/message-item/index.less
+++ b/web/src/components/message-item/index.less
@@ -30,7 +30,6 @@
   .messageTextDark {
     .chunkText();
     .messageTextBase();
-    background-color: #1668dc;
     word-break: break-word;
     :global(section.think) {
       color: rgb(166, 166, 166);
diff --git a/web/src/interfaces/database/chat.ts b/web/src/interfaces/database/chat.ts
index d025956ac..62bcb4696 100644
--- a/web/src/interfaces/database/chat.ts
+++ b/web/src/interfaces/database/chat.ts
@@ -10,6 +10,8 @@ export interface PromptConfig {
   keyword: boolean;
   refine_multiturn: boolean;
   use_kg: boolean;
+  reasoning?: boolean;
+  cross_languages?: Array<string>;
 }
 
 export interface Parameter {
diff --git a/web/src/pages/next-chats/chat/app-settings/chat-basic-settings.tsx b/web/src/pages/next-chats/chat/app-settings/chat-basic-settings.tsx
index b9746db7d..01d2782e6 100644
--- a/web/src/pages/next-chats/chat/app-settings/chat-basic-settings.tsx
+++ b/web/src/pages/next-chats/chat/app-settings/chat-basic-settings.tsx
@@ -13,13 +13,6 @@ import {
   FormMessage,
 } from '@/components/ui/form';
 import { Input } from '@/components/ui/input';
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from '@/components/ui/select';
 import { Textarea } from '@/components/ui/textarea';
 import { useTranslate } from '@/hooks/common-hooks';
 import { useFormContext } from 'react-hook-form';
@@ -28,17 +21,6 @@ export default function ChatBasicSetting() {
   const { t } = useTranslate('chat');
   const form = useFormContext();
 
-  const languageOptions = [
-    { value: 'English', label: 'English' },
-    { value: 'Chinese', label: 'Chinese' },
-    { value: 'Spanish', label: 'Spanish' },
-    { value: 'French', label: 'French' },
-    { value: 'German', label: 'German' },
-    { value: 'Japanese', label: 'Japanese' },
-    { value: 'Korean', label: 'Korean' },
-    { value: 'Vietnamese', label: 'Vietnamese' },
-  ];
-
   return (
     <div className="space-y-8">
       <FormField
@@ -69,30 +51,6 @@ export default function ChatBasicSetting() {
           </FormItem>
         )}
       />
-      <FormField
-        control={form.control}
-        name="language"
-        render={({ field }) => (
-          <FormItem>
-            <FormLabel>{t('language')}</FormLabel>
-            <Select onValueChange={field.onChange} defaultValue={field.value}>
-              <FormControl>
-                <SelectTrigger>
-                  <SelectValue placeholder={t('common.languagePlaceholder')} />
-                </SelectTrigger>
-              </FormControl>
-              <SelectContent>
-                {languageOptions.map((option) => (
-                  <SelectItem key={option.value} value={option.value}>
-                    {option.label}
-                  </SelectItem>
-                ))}
-              </SelectContent>
-            </Select>
-            <FormMessage />
-          </FormItem>
-        )}
-      />
       <FormField
         control={form.control}
         name="description"
diff --git a/web/src/pages/next-chats/chat/app-settings/chat-prompt-engine.tsx b/web/src/pages/next-chats/chat/app-settings/chat-prompt-engine.tsx
index 8a817b125..9a7ed285c 100644
--- a/web/src/pages/next-chats/chat/app-settings/chat-prompt-engine.tsx
+++ b/web/src/pages/next-chats/chat/app-settings/chat-prompt-engine.tsx
@@ -1,5 +1,6 @@
 'use client';
 
+import { CrossLanguageFormField } from '@/components/cross-language-form-field';
 import { RerankFormFields } from '@/components/rerank';
 import { SimilaritySliderFormField } from '@/components/similarity-slider';
 import { SwitchFormField } from '@/components/switch-fom-field';
@@ -30,7 +31,7 @@ export function ChatPromptEngine() {
           <FormItem>
             <FormLabel>{t('system')}</FormLabel>
             <FormControl>
-              <Textarea {...field} />
+              <Textarea {...field} rows={8} />
             </FormControl>
             <FormMessage />
           </FormItem>
@@ -43,7 +44,13 @@ export function ChatPromptEngine() {
         label={t('multiTurn')}
       ></SwitchFormField>
       <UseKnowledgeGraphFormField name="prompt_config.use_kg"></UseKnowledgeGraphFormField>
+      <SwitchFormField
+        name={'prompt_config.reasoning'}
+        label={t('reasoning')}
+        tooltip={t('reasoningTip')}
+      ></SwitchFormField>
       <RerankFormFields></RerankFormFields>
+      <CrossLanguageFormField></CrossLanguageFormField>
       <DynamicVariableForm></DynamicVariableForm>
     </div>
   );
diff --git a/web/src/pages/next-chats/chat/app-settings/chat-settings.tsx b/web/src/pages/next-chats/chat/app-settings/chat-settings.tsx
index 27a47c6c8..76ed4c0e3 100644
--- a/web/src/pages/next-chats/chat/app-settings/chat-settings.tsx
+++ b/web/src/pages/next-chats/chat/app-settings/chat-settings.tsx
@@ -36,7 +36,6 @@ export function ChatSettings({ switchSettingVisible }: ChatSettingsProps) {
     defaultValues: {
       name: '',
       icon: '',
-      language: 'English',
       description: '',
       kb_ids: [],
       prompt_config: {
@@ -47,6 +46,8 @@ export function ChatSettings({ switchSettingVisible }: ChatSettingsProps) {
         refine_multiturn: true,
         system: '',
         parameters: [],
+        reasoning: false,
+        cross_languages: [],
       },
       top_n: 8,
       vector_similarity_weight: 0.2,
diff --git a/web/src/pages/next-chats/chat/app-settings/dynamic-variable.tsx b/web/src/pages/next-chats/chat/app-settings/dynamic-variable.tsx
index 87ebc0c27..e7d5be146 100644
--- a/web/src/pages/next-chats/chat/app-settings/dynamic-variable.tsx
+++ b/web/src/pages/next-chats/chat/app-settings/dynamic-variable.tsx
@@ -41,6 +41,11 @@ export function DynamicVariableForm() {
           <Plus />
         </Button>
       </div>
+      <div className="flex gap-2 pr-12 text-text-secondary text-xs">
+        <span className="flex-1">Key</span>
+        <span className="w-3"></span>
+        <span className="flex-1">Optional</span>
+      </div>
       <div className="space-y-5">
         {fields.map((field, index) => {
           const typeField = `${name}.${index}.key`;
diff --git a/web/src/pages/next-chats/chat/app-settings/use-chat-setting-schema.tsx b/web/src/pages/next-chats/chat/app-settings/use-chat-setting-schema.tsx
index c051619ff..148b6ef14 100644
--- a/web/src/pages/next-chats/chat/app-settings/use-chat-setting-schema.tsx
+++ b/web/src/pages/next-chats/chat/app-settings/use-chat-setting-schema.tsx
@@ -28,14 +28,13 @@ export function useChatSettingSchema() {
       }),
     ),
     tavily_api_key: z.string().optional(),
+    reasoning: z.boolean().optional(),
+    cross_languages: z.array(z.string()).optional(),
   });
 
   const formSchema = z.object({
     name: z.string().min(1, { message: t('assistantNameMessage') }),
     icon: z.string(),
-    language: z.string().min(1, {
-      message: t('languageMessage'),
-    }),
     description: z.string().optional(),
     kb_ids: z.array(z.string()).min(0, {
       message: t('knowledgeBasesMessage'),
diff --git a/web/src/pages/next-chats/chat/sessions.tsx b/web/src/pages/next-chats/chat/sessions.tsx
index d9fb0b25a..7fde0ad2a 100644
--- a/web/src/pages/next-chats/chat/sessions.tsx
+++ b/web/src/pages/next-chats/chat/sessions.tsx
@@ -70,7 +70,12 @@ export function Sessions({
         />
       </section>
       <div className="flex justify-between items-center mb-4 pt-10">
-        <span className="text-base font-bold">Conversations</span>
+        <div className="flex items-center gap-3">
+          <span className="text-base font-bold">Conversations</span>
+          <span className="text-text-secondary text-xs">
+            {conversationList.length}
+          </span>
+        </div>
         <Button variant={'ghost'} onClick={addTemporaryConversation}>
           <Plus></Plus>
         </Button>