diff --git a/backend/internal/handler/dto/mappers.go b/backend/internal/handler/dto/mappers.go
index 51a11ea778..c4d05b6098 100644
--- a/backend/internal/handler/dto/mappers.go
+++ b/backend/internal/handler/dto/mappers.go
@@ -609,6 +609,8 @@ func usageLogFromServiceUser(l *service.UsageLog) UsageLog {
 		ImageSize:             l.ImageSize,
 		ImageInputSize:        l.ImageInputSize,
 		ImageOutputSize:       l.ImageOutputSize,
+		ImageOutputTokens:     l.ImageOutputTokens,
+		ImageOutputCost:       l.ImageOutputCost,
 		ImageSizeSource:       l.ImageSizeSource,
 		ImageSizeBreakdown:    l.ImageSizeBreakdown,
 		MediaType:             l.MediaType,
diff --git a/backend/internal/handler/dto/types.go b/backend/internal/handler/dto/types.go
index b1841c622e..92d0e7dcd5 100644
--- a/backend/internal/handler/dto/types.go
+++ b/backend/internal/handler/dto/types.go
@@ -464,6 +464,8 @@ type UsageLog struct {
 	ImageSize          *string        `json:"image_size"`
 	ImageInputSize     *string        `json:"image_input_size"`
 	ImageOutputSize    *string        `json:"image_output_size"`
+	ImageOutputTokens  int            `json:"image_output_tokens"`
+	ImageOutputCost    float64        `json:"image_output_cost"`
 	ImageSizeSource    *string        `json:"image_size_source"`
 	ImageSizeBreakdown map[string]int `json:"image_size_breakdown"`
 	MediaType          *string        `json:"media_type"`
diff --git a/frontend/src/components/admin/usage/UsageTable.vue b/frontend/src/components/admin/usage/UsageTable.vue
index 65ac1548f9..af9ab466b6 100644
--- a/frontend/src/components/admin/usage/UsageTable.vue
+++ b/frontend/src/components/admin/usage/UsageTable.vue
@@ -125,6 +125,12 @@
                   <span v-if="row.cache_ttl_overridden" :title="t('usage.cacheTtlOverriddenHint')" class="inline-flex items-center rounded px-1 py-px text-[10px] font-medium leading-tight bg-rose-100 text-rose-600 ring-1 ring-inset ring-rose-200 dark:bg-rose-500/20 dark:text-rose-400 dark:ring-rose-500/30 cursor-help">R</span>
                 </div>
               </div>
+              <div v-if="hasImageOutputTokens(row)" class="flex items-center gap-2">
+                <div class="inline-flex items-center gap-1">
+                  <svg class="h-3.5 w-3.5 text-pink-500" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" /></svg>
+                  <span class="font-medium text-pink-600 dark:text-pink-400">{{ row.image_output_tokens.toLocaleString() }}</span>
+                </div>
+              </div>
             </div>
             <!-- Token Detail Tooltip -->
             <div
@@ -206,10 +212,18 @@
               <span class="text-gray-400">{{ t('admin.usage.inputTokens') }}</span>
               <span class="font-medium text-white">{{ tokenTooltipData.input_tokens.toLocaleString() }}</span>
             </div>
-            <div v-if="tokenTooltipData && tokenTooltipData.output_tokens > 0" class="flex items-center justify-between gap-4">
+            <div v-if="tokenTooltipData && tokenTooltipData.output_tokens > 0 && !hasImageOutputTokens(tokenTooltipData)" class="flex items-center justify-between gap-4">
               <span class="text-gray-400">{{ t('admin.usage.outputTokens') }}</span>
               <span class="font-medium text-white">{{ tokenTooltipData.output_tokens.toLocaleString() }}</span>
             </div>
+            <div v-if="tokenTooltipData && hasImageOutputTokens(tokenTooltipData) && textOutputTokens(tokenTooltipData) > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.outputTokens') }}</span>
+              <span class="font-medium text-white">{{ textOutputTokens(tokenTooltipData).toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && hasImageOutputTokens(tokenTooltipData)" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('usage.imageOutputTokens') }}</span>
+              <span class="font-medium text-pink-300">{{ tokenTooltipData.image_output_tokens.toLocaleString() }}</span>
+            </div>
             <div v-if="tokenTooltipData && tokenTooltipData.cache_creation_tokens > 0">
               <!-- 有 5m/1h 明细时，展开显示 -->
               <template v-if="tokenTooltipData.cache_creation_5m_tokens > 0 || tokenTooltipData.cache_creation_1h_tokens > 0">
@@ -279,8 +293,26 @@
               <span class="text-gray-400">{{ t('admin.usage.outputCost') }}</span>
               <span class="font-medium text-white">${{ tooltipData.output_cost.toFixed(6) }}</span>
             </div>
+            <div v-if="tooltipData && hasImageOutputCost(tooltipData)" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('usage.imageOutputCost') }}</span>
+              <span class="font-medium text-pink-300">${{ tooltipData.image_output_cost.toFixed(6) }}</span>
+            </div>
             <!-- Token billing: show unit prices per 1M tokens -->
-            <template v-if="tooltipData && isImageUsage(tooltipData)">
+            <template v-if="!tooltipData?.billing_mode || tooltipData.billing_mode === BILLING_MODE_TOKEN">
+              <div v-if="tooltipData && tooltipData.input_tokens > 0" class="flex items-center justify-between gap-4">
+                <span class="text-gray-400">{{ t('usage.inputTokenPrice') }}</span>
+                <span class="font-medium text-sky-300">{{ formatTokenPricePerMillion(tooltipData.input_cost, tooltipData.input_tokens) }} {{ t('usage.perMillionTokens') }}</span>
+              </div>
+              <div v-if="tooltipData && tooltipData.output_cost > 0 && textOutputTokens(tooltipData) > 0" class="flex items-center justify-between gap-4">
+                <span class="text-gray-400">{{ t('usage.outputTokenPrice') }}</span>
+                <span class="font-medium text-violet-300">{{ formatTokenPricePerMillion(tooltipData.output_cost, textOutputTokens(tooltipData)) }} {{ t('usage.perMillionTokens') }}</span>
+              </div>
+              <div v-if="tooltipData && hasImageOutputTokens(tooltipData)" class="flex items-center justify-between gap-4">
+                <span class="text-gray-400">{{ t('usage.imageOutputTokenPrice') }}</span>
+                <span class="font-medium text-pink-300">{{ formatTokenPricePerMillion(tooltipData.image_output_cost ?? 0, tooltipData.image_output_tokens) }} {{ t('usage.perMillionTokens') }}</span>
+              </div>
+            </template>
+            <template v-else-if="isImageUsage(tooltipData)">
               <div class="flex items-center justify-between gap-4">
                 <span class="text-gray-400">{{ t('usage.imageCount') }}</span>
                 <span class="font-medium text-white">{{ tooltipData.image_count }}{{ t('usage.imageUnit') }}</span>
@@ -314,16 +346,6 @@
                 <span class="font-medium text-white">${{ tooltipData.total_cost?.toFixed(6) || '0.000000' }}</span>
               </div>
             </template>
-            <template v-else-if="!tooltipData?.billing_mode || tooltipData.billing_mode === BILLING_MODE_TOKEN">
-              <div v-if="tooltipData && tooltipData.input_tokens > 0" class="flex items-center justify-between gap-4">
-                <span class="text-gray-400">{{ t('usage.inputTokenPrice') }}</span>
-                <span class="font-medium text-sky-300">{{ formatTokenPricePerMillion(tooltipData.input_cost, tooltipData.input_tokens) }} {{ t('usage.perMillionTokens') }}</span>
-              </div>
-              <div v-if="tooltipData && tooltipData.output_tokens > 0" class="flex items-center justify-between gap-4">
-                <span class="text-gray-400">{{ t('usage.outputTokenPrice') }}</span>
-                <span class="font-medium text-violet-300">{{ formatTokenPricePerMillion(tooltipData.output_cost, tooltipData.output_tokens) }} {{ t('usage.perMillionTokens') }}</span>
-              </div>
-            </template>
             <div v-else class="flex items-center justify-between gap-4">
               <span class="text-gray-400">{{ t('usage.unitPrice') }}</span>
               <span class="font-medium text-sky-300">${{ tooltipData?.total_cost?.toFixed(6) || '0.000000' }}</span>
@@ -384,13 +406,23 @@ import { formatCacheTokens, formatMultiplier } from '@/utils/formatters'
 import { formatTokenPricePerMillion } from '@/utils/usagePricing'
 import { getUsageServiceTierLabel } from '@/utils/usageServiceTier'
 import { resolveUsageRequestType } from '@/utils/usageRequestType'
-import { getBillingModeLabel, getBillingModeBadgeClass, BILLING_MODE_TOKEN, BILLING_MODE_IMAGE } from '@/utils/billingMode'
+import {
+  BILLING_MODE_TOKEN,
+  getBillingModeLabel,
+  getBillingModeBadgeClass,
+  isImageUsage,
+  getDisplayBillingMode,
+  imageUnitPrice,
+} from '@/utils/billingMode'
 import {
   formatImageBillingSize,
   formatImageInputSize,
   formatImageOutputSize,
   formatImageSizeBreakdown,
   formatImageSizeSource,
+  hasImageOutputTokens,
+  textOutputTokens,
+  hasImageOutputCost,
 } from '@/utils/imageUsage'
 
 /** Compute the account-billed cost for display: (account_stats_cost ?? total_cost) * rate_multiplier */
@@ -400,23 +432,6 @@ function accountBilled(row: { total_cost?: number | null; account_stats_cost?: n
   return Number.isNaN(result) ? 0 : result
 }
 
-function imageUnitPrice(row: AdminUsageLog | null): number {
-  if (!row || row.image_count <= 0) return 0
-  const total = row.total_cost ?? 0
-  const price = total / row.image_count
-  return Number.isFinite(price) ? price : 0
-}
-
-function isImageUsage(row: Pick<AdminUsageLog, 'image_count'> | null | undefined): boolean {
-  return (row?.image_count ?? 0) > 0
-}
-
-function getDisplayBillingMode(row: Pick<AdminUsageLog, 'billing_mode' | 'image_count'> | null | undefined): string | null | undefined {
-  if (isImageUsage(row)) {
-    return BILLING_MODE_IMAGE
-  }
-  return row?.billing_mode
-}
 
 import DataTable from '@/components/common/DataTable.vue'
 import EmptyState from '@/components/common/EmptyState.vue'
diff --git a/frontend/src/i18n/locales/en.ts b/frontend/src/i18n/locales/en.ts
index 6735029c7c..f68fcf3aac 100644
--- a/frontend/src/i18n/locales/en.ts
+++ b/frontend/src/i18n/locales/en.ts
@@ -906,6 +906,9 @@ export default {
     imageBillingSize: 'Billing size',
     imageInputSize: 'Input size',
     imageOutputSize: 'Output size',
+    imageOutputTokens: 'Image Output Tokens',
+    imageOutputTokenPrice: 'Image Output Price',
+    imageOutputCost: 'Image Output Cost',
     imageSizeSource: 'Size source',
     imageSizeBreakdown: 'Size breakdown',
     imageSizeSourceOutput: 'Upstream output',
diff --git a/frontend/src/i18n/locales/zh.ts b/frontend/src/i18n/locales/zh.ts
index abb8dff730..2850c8ce6a 100644
--- a/frontend/src/i18n/locales/zh.ts
+++ b/frontend/src/i18n/locales/zh.ts
@@ -910,6 +910,9 @@ export default {
     imageBillingSize: '计费尺寸',
     imageInputSize: '输入尺寸',
     imageOutputSize: '输出尺寸',
+    imageOutputTokens: '图片输出 Token',
+    imageOutputTokenPrice: '图片输出单价',
+    imageOutputCost: '图片输出成本',
     imageSizeSource: '尺寸来源',
     imageSizeBreakdown: '尺寸明细',
     imageSizeSourceOutput: '上游输出',
diff --git a/frontend/src/types/index.ts b/frontend/src/types/index.ts
index c21361693a..1c1ab98491 100644
--- a/frontend/src/types/index.ts
+++ b/frontend/src/types/index.ts
@@ -232,6 +232,7 @@ export interface PublicSettings {
   channel_monitor_enabled: boolean
   channel_monitor_default_interval_seconds: number
   available_channels_enabled: boolean
+  service_quota_enabled: boolean
   affiliate_enabled: boolean
 }
 
@@ -1234,6 +1235,8 @@ export interface UsageLog {
   image_output_size: string | null
   image_size_source: ImageSizeSource | null
   image_size_breakdown: ImageSizeBreakdown | null
+  image_output_tokens: number
+  image_output_cost: number
 
   // User-Agent
   user_agent: string | null
@@ -1408,6 +1411,8 @@ export interface UsageStatsResponse {
   total_input_tokens: number
   total_output_tokens: number
   total_cache_tokens: number
+  total_cache_read_tokens: number
+  total_cache_creation_tokens: number
   total_tokens: number
   total_cost: number // 标准计费
   total_actual_cost: number // 实际扣除
diff --git a/frontend/src/utils/billingMode.ts b/frontend/src/utils/billingMode.ts
index 152dadc45d..485c09244b 100644
--- a/frontend/src/utils/billingMode.ts
+++ b/frontend/src/utils/billingMode.ts
@@ -17,3 +17,24 @@ export function getBillingModeBadgeClass(mode: string | null | undefined): strin
     default: return 'bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-300'
   }
 }
+
+interface ImageBillingRow {
+  image_count: number
+  billing_mode?: string | null
+  total_cost: number
+}
+
+export function isImageUsage(row: Pick<ImageBillingRow, 'image_count' | 'billing_mode'> | null | undefined): boolean {
+  return (row?.image_count ?? 0) > 0 && row?.billing_mode !== BILLING_MODE_TOKEN
+}
+
+export function getDisplayBillingMode(row: Pick<ImageBillingRow, 'billing_mode' | 'image_count'> | null | undefined): string | null | undefined {
+  return row?.billing_mode
+}
+
+export function imageUnitPrice(row: Pick<ImageBillingRow, 'image_count' | 'total_cost'> | null): number {
+  if (!row || row.image_count <= 0) return 0
+  const total = row.total_cost ?? 0
+  const price = total / row.image_count
+  return Number.isFinite(price) ? price : 0
+}
diff --git a/frontend/src/utils/imageUsage.ts b/frontend/src/utils/imageUsage.ts
index 91b7b90c29..069c532f1e 100644
--- a/frontend/src/utils/imageUsage.ts
+++ b/frontend/src/utils/imageUsage.ts
@@ -2,6 +2,28 @@ import type { UsageLog } from '@/types'
 
 type Translate = (key: string) => string
 
+// --- Image output token / cost helpers ---
+
+type ImageOutputTokenRow = Pick<UsageLog, 'output_tokens' | 'image_output_tokens'>
+type ImageOutputCostRow = Pick<UsageLog, 'image_output_cost'>
+
+/** Whether the row contains any image-output tokens. */
+export const hasImageOutputTokens = (row: ImageOutputTokenRow | null | undefined): boolean =>
+  (row?.image_output_tokens ?? 0) > 0
+
+/**
+ * Text-only output tokens (total output minus image-output).
+ * Returns 0 when no text tokens exist.
+ */
+export const textOutputTokens = (row: ImageOutputTokenRow | null | undefined): number =>
+  Math.max(0, (row?.output_tokens ?? 0) - (row?.image_output_tokens ?? 0))
+
+/** Whether the row has a non-zero image-output cost. */
+export const hasImageOutputCost = (row: ImageOutputCostRow | null | undefined): boolean =>
+  (row?.image_output_cost ?? 0) > 0
+
+// --- Image size / billing helpers ---
+
 const knownImageSizeSources = new Set(['output', 'input', 'default', 'legacy'])
 const knownImageBillingSizes = new Set(['1K', '2K', '4K', 'mixed'])
 
diff --git a/frontend/src/views/user/UsageView.vue b/frontend/src/views/user/UsageView.vue
index d6807aaf59..9e64b56e9e 100644
--- a/frontend/src/views/user/UsageView.vue
+++ b/frontend/src/views/user/UsageView.vue
@@ -29,7 +29,7 @@
             <div class="rounded-lg bg-amber-100 p-2 dark:bg-amber-900/30">
               <Icon name="cube" size="md" class="text-amber-600 dark:text-amber-400" />
             </div>
-            <div>
+            <div class="min-w-0 flex-1">
               <p class="text-xs font-medium text-gray-500 dark:text-gray-400">
                 {{ t('usage.totalTokens') }}
               </p>
@@ -37,8 +37,23 @@
                 {{ formatTokens(usageStats?.total_tokens || 0) }}
               </p>
               <p class="text-xs text-gray-500 dark:text-gray-400">
-                {{ t('usage.in') }}: {{ formatTokens(usageStats?.total_input_tokens || 0) }} /
-                {{ t('usage.out') }}: {{ formatTokens(usageStats?.total_output_tokens || 0) }}
+                <span>{{ t('usage.in') }} {{ formatTokens(usageStats?.total_input_tokens || 0) }}</span>
+                <span> · </span>
+                <span>{{ t('usage.out') }} {{ formatTokens(usageStats?.total_output_tokens || 0) }}</span>
+                <span> · </span>
+                <span class="text-sky-600 dark:text-sky-400">{{ t('usage.cacheHit') }} {{ formatTokens(usageStats?.total_cache_read_tokens || 0) }}</span>
+                <span> · </span>
+                <span class="text-amber-600 dark:text-amber-400">{{ t('usage.cacheCreate') }} {{ formatTokens(usageStats?.total_cache_creation_tokens || 0) }}</span>
+              </p>
+              <p class="text-xs text-gray-400 dark:text-gray-500">
+                {{ t('usage.cacheHitRate') }}:
+                <template v-if="cacheStats.totalInput > 0">
+                  <span class="text-sky-600 dark:text-sky-400">{{ formatTokens(cacheStats.cacheRead) }}</span>
+                  <span class="text-gray-400">/</span>
+                  <span class="text-gray-600 dark:text-gray-300">{{ formatTokens(cacheStats.totalInput) }}</span>
+                  <span class="ml-1">{{ cacheStats.ratePercent }}</span>
+                </template>
+                <template v-else>-</template>
               </p>
             </div>
           </div>
@@ -257,6 +272,12 @@
                     <span v-if="row.cache_ttl_overridden" :title="t('usage.cacheTtlOverriddenHint')" class="inline-flex items-center rounded px-1 py-px text-[10px] font-medium leading-tight bg-rose-100 text-rose-600 ring-1 ring-inset ring-rose-200 dark:bg-rose-500/20 dark:text-rose-400 dark:ring-rose-500/30 cursor-help">R</span>
                   </div>
                 </div>
+                <div v-if="hasImageOutputTokens(row)" class="flex items-center gap-2">
+                  <div class="inline-flex items-center gap-1">
+                    <svg class="h-3.5 w-3.5 text-pink-500" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" /></svg>
+                    <span class="font-medium text-pink-600 dark:text-pink-400">{{ row.image_output_tokens.toLocaleString() }}</span>
+                  </div>
+                </div>
               </div>
               <!-- Token Detail Tooltip -->
               <div
@@ -368,10 +389,18 @@
               <span class="text-gray-400">{{ t('admin.usage.inputTokens') }}</span>
               <span class="font-medium text-white">{{ tokenTooltipData.input_tokens.toLocaleString() }}</span>
             </div>
-            <div v-if="tokenTooltipData && tokenTooltipData.output_tokens > 0" class="flex items-center justify-between gap-4">
+            <div v-if="tokenTooltipData && tokenTooltipData.output_tokens > 0 && !hasImageOutputTokens(tokenTooltipData)" class="flex items-center justify-between gap-4">
               <span class="text-gray-400">{{ t('admin.usage.outputTokens') }}</span>
               <span class="font-medium text-white">{{ tokenTooltipData.output_tokens.toLocaleString() }}</span>
             </div>
+            <div v-if="tokenTooltipData && hasImageOutputTokens(tokenTooltipData) && textOutputTokens(tokenTooltipData) > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.outputTokens') }}</span>
+              <span class="font-medium text-white">{{ textOutputTokens(tokenTooltipData).toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && hasImageOutputTokens(tokenTooltipData)" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('usage.imageOutputTokens') }}</span>
+              <span class="font-medium text-pink-300">{{ tokenTooltipData.image_output_tokens.toLocaleString() }}</span>
+            </div>
             <div v-if="tokenTooltipData && tokenTooltipData.cache_creation_tokens > 0">
               <!-- 有 5m/1h 明细时，展开显示 -->
               <template v-if="tokenTooltipData.cache_creation_5m_tokens > 0 || tokenTooltipData.cache_creation_1h_tokens > 0">
@@ -447,8 +476,27 @@
               <span class="text-gray-400">{{ t('admin.usage.outputCost') }}</span>
               <span class="font-medium text-white">${{ tooltipData.output_cost.toFixed(6) }}</span>
             </div>
+            <div v-if="tooltipData && hasImageOutputCost(tooltipData)" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('usage.imageOutputCost') }}</span>
+              <span class="font-medium text-pink-300">${{ tooltipData.image_output_cost.toFixed(6) }}</span>
+            </div>
+            <!-- Token billing: show unit prices per 1M tokens -->
+            <template v-if="!tooltipData?.billing_mode || tooltipData.billing_mode === BILLING_MODE_TOKEN">
+              <div v-if="tooltipData && tooltipData.input_tokens > 0" class="flex items-center justify-between gap-4">
+                <span class="text-gray-400">{{ t('usage.inputTokenPrice') }}</span>
+                <span class="font-medium text-sky-300">{{ formatTokenPricePerMillion(tooltipData.input_cost, tooltipData.input_tokens) }} {{ t('usage.perMillionTokens') }}</span>
+              </div>
+              <div v-if="tooltipData && tooltipData.output_cost > 0 && textOutputTokens(tooltipData) > 0" class="flex items-center justify-between gap-4">
+                <span class="text-gray-400">{{ t('usage.outputTokenPrice') }}</span>
+                <span class="font-medium text-violet-300">{{ formatTokenPricePerMillion(tooltipData.output_cost, textOutputTokens(tooltipData)) }} {{ t('usage.perMillionTokens') }}</span>
+              </div>
+              <div v-if="tooltipData && hasImageOutputTokens(tooltipData)" class="flex items-center justify-between gap-4">
+                <span class="text-gray-400">{{ t('usage.imageOutputTokenPrice') }}</span>
+                <span class="font-medium text-pink-300">{{ formatTokenPricePerMillion(tooltipData.image_output_cost ?? 0, tooltipData.image_output_tokens) }} {{ t('usage.perMillionTokens') }}</span>
+              </div>
+            </template>
             <!-- Per-image billing: show image metadata and unit price -->
-            <template v-if="tooltipData && isImageUsage(tooltipData)">
+            <template v-else-if="tooltipData && isImageUsage(tooltipData)">
               <div class="flex items-center justify-between gap-4">
                 <span class="text-gray-400">{{ t('usage.imageCount') }}</span>
                 <span class="font-medium text-white">{{ tooltipData.image_count }}{{ t('usage.imageUnit') }}</span>
@@ -482,17 +530,6 @@
                 <span class="font-medium text-white">${{ tooltipData.total_cost?.toFixed(6) || '0.000000' }}</span>
               </div>
             </template>
-            <!-- Token billing: show unit prices per 1M tokens -->
-            <template v-else-if="!getDisplayBillingMode(tooltipData) || getDisplayBillingMode(tooltipData) === BILLING_MODE_TOKEN">
-              <div v-if="tooltipData && tooltipData.input_tokens > 0" class="flex items-center justify-between gap-4">
-                <span class="text-gray-400">{{ t('usage.inputTokenPrice') }}</span>
-                <span class="font-medium text-sky-300">{{ formatTokenPricePerMillion(tooltipData.input_cost, tooltipData.input_tokens) }} {{ t('usage.perMillionTokens') }}</span>
-              </div>
-              <div v-if="tooltipData && tooltipData.output_tokens > 0" class="flex items-center justify-between gap-4">
-                <span class="text-gray-400">{{ t('usage.outputTokenPrice') }}</span>
-                <span class="font-medium text-violet-300">{{ formatTokenPricePerMillion(tooltipData.output_cost, tooltipData.output_tokens) }} {{ t('usage.perMillionTokens') }}</span>
-              </div>
-            </template>
             <div v-else class="flex items-center justify-between gap-4">
               <span class="text-gray-400">{{ t('usage.unitPrice') }}</span>
               <span class="font-medium text-sky-300">${{ tooltipData?.total_cost?.toFixed(6) || '0.000000' }}</span>
@@ -559,10 +596,12 @@ import { formatTokenPricePerMillion } from '@/utils/usagePricing'
 import { getUsageServiceTierLabel } from '@/utils/usageServiceTier'
 import { resolveUsageRequestType } from '@/utils/usageRequestType'
 import {
-  BILLING_MODE_IMAGE,
   BILLING_MODE_TOKEN,
   getBillingModeBadgeClass,
   getBillingModeLabel,
+  isImageUsage,
+  getDisplayBillingMode,
+  imageUnitPrice,
 } from '@/utils/billingMode'
 import {
   formatImageBillingSize,
@@ -570,6 +609,9 @@ import {
   formatImageOutputSize,
   formatImageSizeBreakdown,
   formatImageSizeSource,
+  hasImageOutputTokens,
+  textOutputTokens,
+  hasImageOutputCost,
 } from '@/utils/imageUsage'
 
 const { t } = useI18n()
@@ -590,6 +632,19 @@ const tokenTooltipData = ref<UsageLog | null>(null)
 // Usage stats from API
 const usageStats = ref<UsageStatsResponse | null>(null)
 
+// 缓存命中率 = cache_read / (input + cache_read)
+// 分母为 0（无任何输入）时显示 '-'
+const cacheStats = computed(() => {
+  // 总输入 token = 普通输入 + 缓存写入 + 缓存读取（命中）
+  // 缓存命中率 = 缓存读取 / 总输入；总输入为 0 时返回零值，模板按 '-' 渲染。
+  const cacheRead = usageStats.value?.total_cache_read_tokens || 0
+  const cacheCreate = usageStats.value?.total_cache_creation_tokens || 0
+  const input = usageStats.value?.total_input_tokens || 0
+  const totalInput = input + cacheCreate + cacheRead
+  const ratePercent = totalInput > 0 ? `${((cacheRead / totalInput) * 100).toFixed(1)}%` : '-'
+  return { cacheRead, totalInput, ratePercent }
+})
+
 const columns = computed<Column[]>(() => [
   { key: 'api_key', label: t('usage.apiKeyFilter'), sortable: false },
   { key: 'model', label: t('usage.model'), sortable: true },
@@ -671,23 +726,6 @@ const formatDuration = (ms: number): string => {
   return `${(ms / 1000).toFixed(2)}s`
 }
 
-const imageUnitPrice = (row: UsageLog | null): number => {
-  if (!row || row.image_count <= 0) return 0
-  const total = row.total_cost ?? 0
-  const price = total / row.image_count
-  return Number.isFinite(price) ? price : 0
-}
-
-const isImageUsage = (row: Pick<UsageLog, 'image_count'> | null | undefined): boolean => {
-  return (row?.image_count ?? 0) > 0
-}
-
-const getDisplayBillingMode = (row: Pick<UsageLog, 'billing_mode' | 'image_count'> | null | undefined): string | null | undefined => {
-  if (isImageUsage(row)) {
-    return BILLING_MODE_IMAGE
-  }
-  return row?.billing_mode
-}
 
 const formatUserAgent = (ua: string): string => {
   return ua