diff --git a/web/default/src/features/system-settings/models/model-ratio-form.tsx b/web/default/src/features/system-settings/models/model-ratio-form.tsx
index 640d6090..7dbd7697 100644
--- a/web/default/src/features/system-settings/models/model-ratio-form.tsx
+++ b/web/default/src/features/system-settings/models/model-ratio-form.tsx
@@ -18,9 +18,10 @@ For commercial licensing, please contact support@quantumnous.com
 */
 import { useQuery } from '@tanstack/react-query'
 import { Code2, Eye, RotateCcw, Save } from 'lucide-react'
-import { memo, useCallback, useRef, useState } from 'react'
-import { type UseFormReturn } from 'react-hook-form'
+import { memo, useCallback, useEffect, useRef, useState } from 'react'
+import type { UseFormReturn } from 'react-hook-form'
 import { useTranslation } from 'react-i18next'
+import { toast } from 'sonner'
 
 import { JsonCodeEditor } from '@/components/json-code-editor'
 import { Button } from '@/components/ui/button'
@@ -180,6 +181,18 @@ export const ModelRatioForm = memo(function ModelRatioForm({
     enabled: isUnsetVariant,
   })
 
+  const enabledModelsError = isUnsetVariant
+    ? enabledModelsQuery.isError ||
+      (enabledModelsQuery.data !== undefined &&
+        !enabledModelsQuery.data.success)
+    : false
+  const enabledModelsErrorMessage = enabledModelsQuery.data?.message
+
+  useEffect(() => {
+    if (!enabledModelsError) return
+    toast.error(enabledModelsErrorMessage || t('Failed to load enabled models'))
+  }, [enabledModelsError, enabledModelsErrorMessage, t])
+
   const handleFieldChange = useCallback(
     (field: keyof ModelFormValues, value: string) => {
       form.setValue(field, value, {
@@ -272,6 +285,9 @@ export const ModelRatioForm = memo(function ModelRatioForm({
               candidateModelNames={
                 isUnsetVariant ? enabledModelsQuery.data?.data : undefined
               }
+              candidateModelsLoading={
+                isUnsetVariant && enabledModelsQuery.isLoading
+              }
               filterMode={isUnsetVariant ? 'unset' : 'all'}
               onSave={handleSave}
               isSaving={isSaving}
diff --git a/web/default/src/features/system-settings/models/model-ratio-visual-editor.tsx b/web/default/src/features/system-settings/models/model-ratio-visual-editor.tsx
index 3606d2aa..827ef2eb 100644
--- a/web/default/src/features/system-settings/models/model-ratio-visual-editor.tsx
+++ b/web/default/src/features/system-settings/models/model-ratio-visual-editor.tsx
@@ -16,13 +16,13 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 For commercial licensing, please contact support@quantumnous.com
 */
-import {
-  type ColumnFiltersState,
-  type OnChangeFn,
-  type PaginationState,
-  type RowSelectionState,
-  type VisibilityState,
-  type SortingState,
+import type {
+  ColumnFiltersState,
+  OnChangeFn,
+  PaginationState,
+  RowSelectionState,
+  VisibilityState,
+  SortingState,
 } from '@tanstack/react-table'
 import { Copy, Plus } from 'lucide-react'
 import {
@@ -51,6 +51,7 @@ import { combineBillingExpr } from '@/features/pricing/lib/billing-expr'
 import { useMediaQuery } from '@/hooks'
 
 import { safeJsonParse } from '../utils/json-parser'
+import type { PricingMode } from './model-pricing-core'
 import {
   ModelPricingEditorPanel,
   type ModelPricingEditorPanelHandle,
@@ -87,6 +88,7 @@ type ModelRatioVisualEditorProps = {
   billingMode: string
   billingExpr: string
   candidateModelNames?: string[]
+  candidateModelsLoading?: boolean
   filterMode?: 'all' | 'unset'
   onChange: (field: string, value: string) => void
   onSave: () => void | Promise<void>
@@ -125,6 +127,7 @@ const ModelRatioVisualEditorComponent = forwardRef<
     billingMode,
     billingExpr,
     candidateModelNames,
+    candidateModelsLoading,
     filterMode = 'all',
     onChange,
     onSave,
@@ -219,7 +222,7 @@ const ModelRatioVisualEditorComponent = forwardRef<
       ...draftByName.keys(),
     ])
 
-    return Array.from(modelNames)
+    return [...modelNames]
       .map((name) => {
         const saved = savedByName.get(name)
         const draft = draftByName.get(name)
@@ -289,6 +292,12 @@ const ModelRatioVisualEditorComponent = forwardRef<
   const handleEdit = useCallback(
     (model: ModelRow) => {
       const editableModel = model.draft ?? model.saved ?? model
+      let editBillingMode: PricingMode = 'per-token'
+      if (editableModel.billingMode === 'tiered_expr') {
+        editBillingMode = 'tiered_expr'
+      } else if (editableModel.price && editableModel.price !== '') {
+        editBillingMode = 'per-request'
+      }
       setEditData({
         name: editableModel.name,
         price: editableModel.price,
@@ -299,12 +308,7 @@ const ModelRatioVisualEditorComponent = forwardRef<
         imageRatio: editableModel.imageRatio,
         audioRatio: editableModel.audioRatio,
         audioCompletionRatio: editableModel.audioCompletionRatio,
-        billingMode:
-          editableModel.billingMode === 'tiered_expr'
-            ? 'tiered_expr'
-            : editableModel.price && editableModel.price !== ''
-              ? 'per-request'
-              : 'per-token',
+        billingMode: editBillingMode,
         billingExpr: editableModel.billingExpr,
         requestRuleExpr: editableModel.requestRuleExpr,
       })
@@ -632,7 +636,11 @@ const ModelRatioVisualEditorComponent = forwardRef<
       return
     }
 
-    persistPricingData(sourceData, targetNames)
+    // Persist to the source model too, so targets never carry pricing the
+    // source itself would lose if the editor draft were abandoned.
+    persistPricingData(sourceData, [
+      ...new Set([sourceData.name, ...targetNames]),
+    ])
     table.resetRowSelection()
     toast.success(
       t('Applied {{name}} pricing to {{count}} models', {
@@ -663,7 +671,9 @@ const ModelRatioVisualEditorComponent = forwardRef<
   if (table.getState().globalFilter) {
     emptyStateText = t('No models match your search')
   } else if (filterMode === 'unset') {
-    emptyStateText = t('No models with unset prices')
+    emptyStateText = candidateModelsLoading
+      ? t('Loading...')
+      : t('No models with unset prices')
   }
 
   return (
@@ -821,6 +831,17 @@ export const ModelRatioVisualEditor = memo(
   // Custom equality check - only re-render if JSON props actually changed
   (prevProps, nextProps) => {
     return (
+      prevProps.savedModelPrice === nextProps.savedModelPrice &&
+      prevProps.savedModelRatio === nextProps.savedModelRatio &&
+      prevProps.savedCacheRatio === nextProps.savedCacheRatio &&
+      prevProps.savedCreateCacheRatio === nextProps.savedCreateCacheRatio &&
+      prevProps.savedCompletionRatio === nextProps.savedCompletionRatio &&
+      prevProps.savedImageRatio === nextProps.savedImageRatio &&
+      prevProps.savedAudioRatio === nextProps.savedAudioRatio &&
+      prevProps.savedAudioCompletionRatio ===
+        nextProps.savedAudioCompletionRatio &&
+      prevProps.savedBillingMode === nextProps.savedBillingMode &&
+      prevProps.savedBillingExpr === nextProps.savedBillingExpr &&
       prevProps.modelPrice === nextProps.modelPrice &&
       prevProps.modelRatio === nextProps.modelRatio &&
       prevProps.cacheRatio === nextProps.cacheRatio &&
@@ -832,6 +853,7 @@ export const ModelRatioVisualEditor = memo(
       prevProps.billingMode === nextProps.billingMode &&
       prevProps.billingExpr === nextProps.billingExpr &&
       prevProps.candidateModelNames === nextProps.candidateModelNames &&
+      prevProps.candidateModelsLoading === nextProps.candidateModelsLoading &&
       prevProps.filterMode === nextProps.filterMode &&
       prevProps.onChange === nextProps.onChange &&
       prevProps.onSave === nextProps.onSave &&
diff --git a/web/default/src/i18n/locales/en.json b/web/default/src/i18n/locales/en.json
index a9f5cec0..9eba821e 100644
--- a/web/default/src/i18n/locales/en.json
+++ b/web/default/src/i18n/locales/en.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "Failed to load",
     "Failed to load API keys": "Failed to load API keys",
     "Failed to load billing history": "Failed to load billing history",
+    "Failed to load enabled models": "Failed to load enabled models",
     "Failed to load home page content": "Failed to load home page content",
     "Failed to load image": "Failed to load image",
     "Failed to load key status": "Failed to load key status",
diff --git a/web/default/src/i18n/locales/fr.json b/web/default/src/i18n/locales/fr.json
index 72157673..f4014a48 100644
--- a/web/default/src/i18n/locales/fr.json
+++ b/web/default/src/i18n/locales/fr.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "Échec du chargement",
     "Failed to load API keys": "Échec du chargement des Clés API",
     "Failed to load billing history": "Échec du chargement de l'historique de facturation",
+    "Failed to load enabled models": "Échec du chargement des modèles activés",
     "Failed to load home page content": "Échec du chargement du contenu de la page d'accueil",
     "Failed to load image": "Échec du chargement de l'image",
     "Failed to load key status": "Échec du chargement du statut des clés",
diff --git a/web/default/src/i18n/locales/ja.json b/web/default/src/i18n/locales/ja.json
index 9845303e..527f49b9 100644
--- a/web/default/src/i18n/locales/ja.json
+++ b/web/default/src/i18n/locales/ja.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "読み込みに失敗しました",
     "Failed to load API keys": "APIキーの読み込みに失敗しました",
     "Failed to load billing history": "請求履歴の読み込みに失敗しました",
+    "Failed to load enabled models": "有効なモデルの取得に失敗しました",
     "Failed to load home page content": "ホームページの内容の読み込みに失敗しました",
     "Failed to load image": "画像の読み込みに失敗しました",
     "Failed to load key status": "キー状態の読み込みに失敗しました",
diff --git a/web/default/src/i18n/locales/ru.json b/web/default/src/i18n/locales/ru.json
index 9765f086..0c424ad5 100644
--- a/web/default/src/i18n/locales/ru.json
+++ b/web/default/src/i18n/locales/ru.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "Не удалось загрузить",
     "Failed to load API keys": "Не удалось загрузить API ключи",
     "Failed to load billing history": "Не удалось загрузить историю платежей",
+    "Failed to load enabled models": "Не удалось загрузить включённые модели",
     "Failed to load home page content": "Не удалось загрузить содержимое главной страницы",
     "Failed to load image": "Не удалось загрузить изображение",
     "Failed to load key status": "Не удалось загрузить статус ключей",
diff --git a/web/default/src/i18n/locales/vi.json b/web/default/src/i18n/locales/vi.json
index bcef090c..17fc695a 100644
--- a/web/default/src/i18n/locales/vi.json
+++ b/web/default/src/i18n/locales/vi.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "Tải thất bại",
     "Failed to load API keys": "Không thể tải khóa API",
     "Failed to load billing history": "Không thể tải lịch sử thanh toán",
+    "Failed to load enabled models": "Không thể tải các mô hình đã bật",
     "Failed to load home page content": "Không thể tải nội dung trang chủ",
     "Failed to load image": "Không thể tải ảnh",
     "Failed to load key status": "Không thể tải trạng thái khóa",
diff --git a/web/default/src/i18n/locales/zh-TW.json b/web/default/src/i18n/locales/zh-TW.json
index 26addcd7..279e4e6e 100644
--- a/web/default/src/i18n/locales/zh-TW.json
+++ b/web/default/src/i18n/locales/zh-TW.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "載入失敗",
     "Failed to load API keys": "載入 API 金鑰失敗",
     "Failed to load billing history": "載入收費歷史失敗",
+    "Failed to load enabled models": "獲取啟用模型失敗",
     "Failed to load home page content": "載入首頁內容失敗",
     "Failed to load image": "無法載入圖像",
     "Failed to load key status": "載入金鑰狀態失敗",
diff --git a/web/default/src/i18n/locales/zh.json b/web/default/src/i18n/locales/zh.json
index 3da71a04..45368da4 100644
--- a/web/default/src/i18n/locales/zh.json
+++ b/web/default/src/i18n/locales/zh.json
@@ -1845,6 +1845,7 @@
     "Failed to load": "加载失败",
     "Failed to load API keys": "加载 API 密钥失败",
     "Failed to load billing history": "加载计费历史失败",
+    "Failed to load enabled models": "获取启用模型失败",
     "Failed to load home page content": "加载首页内容失败",
     "Failed to load image": "无法加载图像",
     "Failed to load key status": "加载密钥状态失败",