diff --git a/src/renderer/src/i18n/locales/en-us.json b/src/renderer/src/i18n/locales/en-us.json
index 9cdee785..f9ba6653 100644
--- a/src/renderer/src/i18n/locales/en-us.json
+++ b/src/renderer/src/i18n/locales/en-us.json
@@ -42,8 +42,6 @@
       "save.success": "Saved successfully",
       "save.title": "Save to agent",
       "search": "Search assistants...",
-      "settings.auto_reset_model": "Auto Reset Model",
-      "settings.auto_reset_model.tip": "Automatically reset the model when a new topic is created.",
       "settings.default_model": "Default Model",
       "settings.knowledge_base": "Knowledge Base Settings",
       "settings.model": "Model Settings",
diff --git a/src/renderer/src/i18n/locales/ja-jp.json b/src/renderer/src/i18n/locales/ja-jp.json
index 9b9e78fa..f9ccb458 100644
--- a/src/renderer/src/i18n/locales/ja-jp.json
+++ b/src/renderer/src/i18n/locales/ja-jp.json
@@ -42,8 +42,6 @@
       "save.success": "保存に成功しました",
       "save.title": "エージェントに保存",
       "search": "アシスタントを検索...",
-      "settings.auto_reset_model": "自動リセットモデル",
-      "settings.auto_reset_model.tip": "新しいトピックを作成する際にモデルを自動的にリセットします",
       "settings.default_model": "デフォルトモデル",
       "settings.knowledge_base": "ナレッジベース設定",
       "settings.model": "モデル設定",
diff --git a/src/renderer/src/i18n/locales/ru-ru.json b/src/renderer/src/i18n/locales/ru-ru.json
index cd9e70d2..0a6a8815 100644
--- a/src/renderer/src/i18n/locales/ru-ru.json
+++ b/src/renderer/src/i18n/locales/ru-ru.json
@@ -42,8 +42,6 @@
       "save.success": "Успешно сохранено",
       "save.title": "Сохранить в агента",
       "search": "Поиск ассистентов...",
-      "settings.auto_reset_model": "Автосброс модели",
-      "settings.auto_reset_model.tip": "Автоматически сбрасывать модель при создании нового топика.",
       "settings.default_model": "Модель по умолчанию",
       "settings.knowledge_base": "Настройки базы знаний",
       "settings.model": "Настройки модели",
diff --git a/src/renderer/src/i18n/locales/zh-cn.json b/src/renderer/src/i18n/locales/zh-cn.json
index 81c00bd6..5297518d 100644
--- a/src/renderer/src/i18n/locales/zh-cn.json
+++ b/src/renderer/src/i18n/locales/zh-cn.json
@@ -42,8 +42,6 @@
       "save.success": "保存成功",
       "save.title": "保存到智能体",
       "search": "搜索助手",
-      "settings.auto_reset_model": "自动重置模型",
-      "settings.auto_reset_model.tip": "创建新话题时自动重置模型",
       "settings.default_model": "默认模型",
       "settings.knowledge_base": "知识库设置",
       "settings.model": "模型设置",
diff --git a/src/renderer/src/i18n/locales/zh-tw.json b/src/renderer/src/i18n/locales/zh-tw.json
index a23451dc..a5fb56e6 100644
--- a/src/renderer/src/i18n/locales/zh-tw.json
+++ b/src/renderer/src/i18n/locales/zh-tw.json
@@ -42,8 +42,6 @@
       "save.success": "儲存成功",
       "save.title": "儲存到智能體",
       "search": "搜尋助手...",
-      "settings.auto_reset_model": "自動重置模型",
-      "settings.auto_reset_model.tip": "每次新的話題時自動重置模型",
       "settings.default_model": "預設模型",
       "settings.knowledge_base": "知識庫設定",
       "settings.model": "模型設定",
diff --git a/src/renderer/src/pages/home/Inputbar/Inputbar.tsx b/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
index 9b441596..811c3ec3 100644
--- a/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
+++ b/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
@@ -254,9 +254,7 @@ const Inputbar: FC<Props> = ({ assistant: _assistant, setActiveTopic }) => {
     await addAssistantMessagesToTopic({ assistant, topic })
 
     // Reset to assistant default model
-    if (assistant.settings?.autoResetModel) {
-      assistant.defaultModel && setModel(assistant.defaultModel)
-    }
+    assistant.defaultModel && setModel(assistant.defaultModel)
 
     addTopic(topic)
     setActiveTopic(topic)
diff --git a/src/renderer/src/pages/home/Tabs/SettingsTab.tsx b/src/renderer/src/pages/home/Tabs/SettingsTab.tsx
index 9706070f..146799b4 100644
--- a/src/renderer/src/pages/home/Tabs/SettingsTab.tsx
+++ b/src/renderer/src/pages/home/Tabs/SettingsTab.tsx
@@ -106,7 +106,6 @@ const SettingsTab: FC<Props> = (props) => {
         maxTokens: DEFAULT_MAX_TOKENS,
         streamOutput: true,
         hideMessages: false,
-        autoResetModel: false,
         customParameters: []
       }
     })
diff --git a/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx b/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx
index 998c7eaa..0dcde973 100644
--- a/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx
+++ b/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx
@@ -22,7 +22,6 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
   const [contextCount, setContextCount] = useState(assistant?.settings?.contextCount ?? DEFAULT_CONTEXTCOUNT)
   const [enableMaxTokens, setEnableMaxTokens] = useState(assistant?.settings?.enableMaxTokens ?? false)
   const [maxTokens, setMaxTokens] = useState(assistant?.settings?.maxTokens ?? 0)
-  const [autoResetModel, setAutoResetModel] = useState(assistant?.settings?.autoResetModel ?? false)
   const [reasoningEffort, setReasoningEffort] = useState(assistant?.settings?.reasoning_effort ?? 'medium')
   const [streamOutput, setStreamOutput] = useState(assistant?.settings?.streamOutput ?? true)
   const [defaultModel, setDefaultModel] = useState(assistant?.defaultModel)
@@ -192,32 +191,27 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
       <Row align="middle" style={{ marginBottom: 10 }}>
         <Label style={{ marginBottom: 10 }}>{t('assistants.settings.default_model')}</Label>
         <Col span={24}>
-          <HStack alignItems="center">
+          <HStack alignItems="center" gap={5}>
             <Button
               icon={defaultModel ? <ModelAvatar model={defaultModel} size={20} /> : <PlusOutlined />}
               onClick={onSelectModel}>
               {defaultModel ? defaultModel.name : t('agents.edit.model.select.title')}
             </Button>
+            {defaultModel && (
+              <Button
+                icon={<DeleteOutlined />}
+                type="text"
+                onClick={() => {
+                  setDefaultModel(undefined)
+                  updateAssistant({ ...assistant, defaultModel: undefined })
+                }}
+                danger
+              />
+            )}
           </HStack>
         </Col>
       </Row>
       <Divider style={{ margin: '10px 0' }} />
-      <SettingRow style={{ minHeight: 30 }}>
-        <Label>
-          {t('assistants.settings.auto_reset_model')}{' '}
-          <Tooltip title={t('assistants.settings.auto_reset_model.tip')}>
-            <QuestionIcon />
-          </Tooltip>
-        </Label>
-        <Switch
-          value={autoResetModel}
-          onChange={(checked) => {
-            setAutoResetModel(checked)
-            setTimeout(() => updateAssistantSettings({ autoResetModel: checked }), 500)
-          }}
-        />
-      </SettingRow>
-      <Divider style={{ margin: '10px 0' }} />
       <Row align="middle">
         <Label>{t('chat.settings.temperature')}</Label>
         <Tooltip title={t('chat.settings.temperature.tip')}>
diff --git a/src/renderer/src/services/AssistantService.ts b/src/renderer/src/services/AssistantService.ts
index af64ccd5..a91cff9b 100644
--- a/src/renderer/src/services/AssistantService.ts
+++ b/src/renderer/src/services/AssistantService.ts
@@ -106,7 +106,6 @@ export const getAssistantSettings = (assistant: Assistant): AssistantSettings =>
     streamOutput: assistant?.settings?.streamOutput ?? true,
     hideMessages: assistant?.settings?.hideMessages ?? false,
     defaultModel: assistant?.defaultModel ?? undefined,
-    autoResetModel: assistant?.settings?.autoResetModel ?? false,
     customParameters: assistant?.settings?.customParameters ?? []
   }
 }
diff --git a/src/renderer/src/store/agents.ts b/src/renderer/src/store/agents.ts
index 48e0c4d7..7cb22dd5 100644
--- a/src/renderer/src/store/agents.ts
+++ b/src/renderer/src/store/agents.ts
@@ -41,8 +41,7 @@ const assistantsSlice = createSlice({
                 enableMaxTokens: false,
                 maxTokens: 0,
                 streamOutput: true,
-                hideMessages: false,
-                autoResetModel: false
+                hideMessages: false
               }
             }
             agent.settings[key] = settings[key]
diff --git a/src/renderer/src/store/assistants.ts b/src/renderer/src/store/assistants.ts
index a8cf3f8a..f2664617 100644
--- a/src/renderer/src/store/assistants.ts
+++ b/src/renderer/src/store/assistants.ts
@@ -49,8 +49,7 @@ const assistantsSlice = createSlice({
                 enableMaxTokens: false,
                 maxTokens: 0,
                 streamOutput: true,
-                hideMessages: false,
-                autoResetModel: false
+                hideMessages: false
               }
             }
             assistant.settings[key] = settings[key]
diff --git a/src/renderer/src/types/index.ts b/src/renderer/src/types/index.ts
index f58dacf5..ce8c6379 100644
--- a/src/renderer/src/types/index.ts
+++ b/src/renderer/src/types/index.ts
@@ -37,7 +37,6 @@ export type AssistantSettings = {
   streamOutput: boolean
   hideMessages: boolean
   defaultModel?: Model
-  autoResetModel: boolean
   customParameters?: AssistantSettingCustomParameters[]
   reasoning_effort?: 'low' | 'medium' | 'high'
 }