diff --git a/frontend/src/components/account/AccountUsageCell.vue b/frontend/src/components/account/AccountUsageCell.vue
index 3291b9b30d..966b0a5e08 100644
--- a/frontend/src/components/account/AccountUsageCell.vue
+++ b/frontend/src/components/account/AccountUsageCell.vue
@@ -397,12 +397,16 @@
             class="flex flex-wrap items-center gap-1 text-[10px] text-gray-500 dark:text-gray-400"
           >
             <span
+              v-if="grokPrepaidMoneyLine.showPrepaid"
               class="rounded bg-emerald-50 px-1 py-0.5 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-300"
               :title="t('admin.accounts.usageWindow.grokPrepaid')"
             >
               {{ t('admin.accounts.usageWindow.grokPrepaid') }} ${{ grokPrepaidMoneyLine.prepaid }}
             </span>
-            <span :title="t('admin.accounts.usageWindow.grokMonthlyLimit')">
+            <span
+              v-if="grokPrepaidMoneyLine.showUsedLimit"
+              :title="t('admin.accounts.usageWindow.grokMonthlyLimit')"
+            >
               {{ t('admin.accounts.usageWindow.grokUsed') }}
               {{ grokPrepaidMoneyLine.used }}/{{ grokPrepaidMoneyLine.limit }}
             </span>
@@ -1164,30 +1168,33 @@ const formatGrokMoney = (value?: number | null) => {
   if (value >= 10) return value.toFixed(1)
   return value.toFixed(2)
 }
-// Prepaid money line for paid Grok: show when prepaid_balance is present.
-// Monthly used/limit numbers are optional context; primary progress is the 30d bar.
+// Prepaid chip only when there is a positive prepaid balance.
+// Used/limit only when monthly limit is a positive number (0 means unlimited / unset).
 const grokPrepaidMoneyLine = computed(() => {
   const billing = grokBilling.value
   if (!billing) return null
   const prepaid = billing.prepaid_balance
-  // "只针对预付": only render when prepaid field exists (including $0.00).
-  if (prepaid == null || !Number.isFinite(prepaid)) return null
+  const showPrepaid = prepaid != null && Number.isFinite(prepaid) && prepaid > 0
+  const limitRaw =
+    billing.monthly_limit != null
+      ? billing.monthly_limit
+      : billing.monthly_limit_cents != null
+        ? billing.monthly_limit_cents / 100
+        : null
+  const showUsedLimit = limitRaw != null && Number.isFinite(limitRaw) && limitRaw > 0
+  if (!showPrepaid && !showUsedLimit) return null
   const used =
     billing.monthly_used != null
       ? billing.monthly_used
       : billing.used_cents != null
         ? billing.used_cents / 100
         : 0
-  const limit =
-    billing.monthly_limit != null
-      ? billing.monthly_limit
-      : billing.monthly_limit_cents != null
-        ? billing.monthly_limit_cents / 100
-        : 0
   return {
-    prepaid: formatGrokMoney(prepaid),
-    used: formatGrokMoney(used),
-    limit: formatGrokMoney(limit)
+    showPrepaid,
+    showUsedLimit,
+    prepaid: showPrepaid ? formatGrokMoney(prepaid) : null,
+    used: showUsedLimit ? formatGrokMoney(used) : null,
+    limit: showUsedLimit ? formatGrokMoney(limitRaw) : null
   }
 })
 const grokPlanLabelIsFree = (value: string) => value.includes('free') || value.includes('basic')
diff --git a/frontend/src/components/account/__tests__/AccountUsageCell.spec.ts b/frontend/src/components/account/__tests__/AccountUsageCell.spec.ts
index 3e048a5346..1ad6866dd7 100644
--- a/frontend/src/components/account/__tests__/AccountUsageCell.spec.ts
+++ b/frontend/src/components/account/__tests__/AccountUsageCell.spec.ts
@@ -1168,6 +1168,94 @@ describe('AccountUsageCell', () => {
     expect(wrapper.text()).toContain('30d|8|4400000')
   })
 
+  it('Grok paid hides zero prepaid and hides used/limit when monthly limit is 0', async () => {
+    getUsage.mockResolvedValue({
+      subscription_tier: 'SuperGrok',
+      grok_billing: {
+        period_type: 'weekly',
+        usage_percent: 20,
+        prepaid_balance: 0,
+        monthly_limit: 0,
+        monthly_used: 3.5,
+        plan: 'SuperGrok'
+      }
+    })
+
+    const wrapper = mount(AccountUsageCell, {
+      props: {
+        account: makeAccount({ id: 4413, platform: 'grok', type: 'oauth', extra: {} })
+      },
+      global: {
+        stubs: {
+          UsageProgressBar: true,
+          AccountQuotaInfo: true
+        }
+      }
+    })
+
+    await flushPromises()
+    expect(wrapper.text()).not.toContain('admin.accounts.usageWindow.grokPrepaid')
+    expect(wrapper.text()).not.toContain('admin.accounts.usageWindow.grokUsed')
+    expect(wrapper.text()).not.toContain('3.5/0')
+  })
+
+  it('Grok paid shows used/limit without prepaid, and prepaid without a zero monthly limit', async () => {
+    getUsage.mockResolvedValueOnce({
+      subscription_tier: 'SuperGrok',
+      grok_billing: {
+        period_type: 'weekly',
+        usage_percent: 20,
+        monthly_limit: 25,
+        monthly_used: 3.5,
+        plan: 'SuperGrok'
+      }
+    })
+
+    const usedOnly = mount(AccountUsageCell, {
+      props: {
+        account: makeAccount({ id: 4414, platform: 'grok', type: 'oauth', extra: {} })
+      },
+      global: {
+        stubs: {
+          UsageProgressBar: true,
+          AccountQuotaInfo: true
+        }
+      }
+    })
+    await flushPromises()
+    expect(usedOnly.text()).not.toContain('admin.accounts.usageWindow.grokPrepaid')
+    expect(usedOnly.text()).toContain('admin.accounts.usageWindow.grokUsed')
+    expect(usedOnly.text()).toContain('3.50/25.0')
+
+    getUsage.mockResolvedValueOnce({
+      subscription_tier: 'SuperGrok Heavy',
+      grok_billing: {
+        period_type: 'weekly',
+        usage_percent: 20,
+        prepaid_balance: 12.5,
+        monthly_limit: 0,
+        monthly_used: 8,
+        plan: 'SuperGrok Heavy'
+      }
+    })
+    const prepaidOnly = mount(AccountUsageCell, {
+      props: {
+        account: makeAccount({ id: 4415, platform: 'grok', type: 'oauth', extra: {} })
+      },
+      global: {
+        stubs: {
+          UsageProgressBar: true,
+          AccountQuotaInfo: true
+        }
+      }
+    })
+    await flushPromises()
+    expect(prepaidOnly.text()).toContain('admin.accounts.usageWindow.grokPrepaid')
+    expect(prepaidOnly.text()).toContain('$12.5')
+    expect(prepaidOnly.text()).not.toContain('admin.accounts.usageWindow.grokUsed')
+    expect(prepaidOnly.text()).not.toContain('8.00/0')
+  })
+
   it('Key 账号在 today stats loading 时显示骨架屏', async () => {
 		const wrapper = mount(AccountUsageCell, {
 		  props: {