Merge pull request #5851 from IanShaw027/feat/channel-pricing-tier-multipliers

fix(billing): restore Fast tier pricing under channel overrides, add configurable multipliers

frontend/src/components/account/CreateAccountModal.vue

@@ -2958,6 +2958,7 @@
       <!-- OpenAI WS Mode 三态（off/ctx_pool/passthrough） -->
       <div
         v-if="form.platform === 'openai' && (accountCategory === 'oauth-based' || accountCategory === 'apikey')"
+        data-testid="create-openai-ws-mode"
         class="border-t border-gray-200 pt-4 dark:border-dark-600"
       >
         <div class="flex items-center justify-between">
@@ -3044,9 +3045,9 @@
         </div>
       </div>
 
-      <!-- OpenAI OAuth Codex 官方客户端限制开关 -->
+      <!-- OpenAI API 长上下文计费开关 -->
       <div
-        v-if="form.platform === 'openai' && (accountCategory === 'oauth-based' || accountCategory === 'apikey')"
+        v-if="form.platform === 'openai' && !hideAccountLongContextBilling && (accountCategory === 'oauth-based' || accountCategory === 'apikey')"
         class="border-t border-gray-200 pt-4 dark:border-dark-600"
       >
         <div class="flex items-center justify-between gap-4">
@@ -3740,6 +3741,7 @@ import Toggle from '@/components/common/Toggle.vue'
 import GrokBaseUrlPresets from '@/components/account/GrokBaseUrlPresets.vue'
 import CnBaseUrlPresets from '@/components/account/CnBaseUrlPresets.vue'
 import HeaderOverrideEditor from '@/components/account/HeaderOverrideEditor.vue'
+import { allSelectedGroupsEnableLongContextPricing } from '@/components/account/longContextBilling'
 import {
   applyAntigravityProjectID,
   applyHeaderOverride,
@@ -3857,6 +3859,10 @@ const emit = defineEmits<{
 
 const appStore = useAppStore()
 
+const hideAccountLongContextBilling = computed(() => {
+  return allSelectedGroupsEnableLongContextPricing(form.group_ids, props.groups)
+})
+
 // OAuth composables
 const oauth = useAccountOAuth() // For Anthropic OAuth
 const openaiOAuth = useOpenAIOAuth() // For OpenAI OAuth

frontend/src/components/account/EditAccountModal.vue

@@ -1966,7 +1966,7 @@
 
       <!-- OpenAI API 长上下文计费开关 -->
       <div
-        v-if="account?.platform === 'openai' && !isSparkShadow && (account?.type === 'oauth' || account?.type === 'setup-token' || account?.type === 'apikey')"
+        v-if="account?.platform === 'openai' && !isSparkShadow && !hideAccountLongContextBilling && (account?.type === 'oauth' || account?.type === 'setup-token' || account?.type === 'apikey')"
         class="border-t border-gray-200 pt-4 dark:border-dark-600"
       >
         <div class="flex items-center justify-between gap-4">
@@ -2811,6 +2811,7 @@ import {
 } from '@/components/account/credentialsBuilder'
 import { formatDateTime, formatDateTimeLocalInput, parseDateTimeLocalInput } from '@/utils/format'
 import { createStableObjectKeyResolver } from '@/utils/stableObjectKey'
+import { allSelectedGroupsEnableLongContextPricing } from '@/components/account/longContextBilling'
 import { VERTEX_LOCATION_OPTIONS } from '@/constants/account'
 import {
   OPENAI_WS_MODE_CTX_POOL,
@@ -2851,6 +2852,10 @@ const authStore = useAuthStore()
 // 故隐藏代理选择器。
 const isSparkShadow = computed(() => props.account?.parent_account_id != null)
 
+const hideAccountLongContextBilling = computed(() => {
+  return allSelectedGroupsEnableLongContextPricing(form.group_ids, props.groups)
+})
+
 const handleOllamaCloudUsageUpdated = (state: OllamaCloudUsageState) => {
   if (props.account) emit('updated', { ...props.account, ollama_cloud_usage: state })
 }

frontend/src/components/account/__tests__/CreateAccountModal.spec.ts

@@ -7,11 +7,13 @@ const {
   probeUpstreamBillingMock,
   importCodexSessionMock,
   createOpenAICodexPATMock,
+  authIsSimpleMode,
 } = vi.hoisted(() => ({
   createAccountMock: vi.fn(),
   probeUpstreamBillingMock: vi.fn(),
   importCodexSessionMock: vi.fn(),
   createOpenAICodexPATMock: vi.fn(),
+  authIsSimpleMode: { value: true },
 }))
 
 vi.mock('@/stores/app', () => ({
@@ -23,7 +25,11 @@ vi.mock('@/stores/app', () => ({
 }))
 
 vi.mock('@/stores/auth', () => ({
-  useAuthStore: () => ({ isSimpleMode: true }),
+  useAuthStore: () => ({
+    get isSimpleMode() {
+      return authIsSimpleMode.value
+    },
+  }),
 }))
 
 vi.mock('@/api/admin', () => ({
@@ -84,9 +90,29 @@ const OAuthAuthorizationFlowStub = defineComponent({
   `,
 })
 
-function mountModal() {
+const GroupSelectorStub = defineComponent({
+  name: 'GroupSelector',
+  props: {
+    modelValue: {
+      type: Array,
+      default: () => [],
+    },
+  },
+  emits: ['update:modelValue'],
+  template: `
+    <button
+      type="button"
+      data-testid="select-pricing-groups"
+      @click="$emit('update:modelValue', [1, 2])"
+    >
+      groups
+    </button>
+  `,
+})
+
+function mountModal(groups: any[] = []) {
   return mount(CreateAccountModal, {
-    props: { show: true, proxies: [], groups: [] },
+    props: { show: true, proxies: [], groups },
     global: {
       stubs: {
         BaseDialog: BaseDialogStub,
@@ -97,7 +123,7 @@ function mountModal() {
         PlatformIcon: true,
         ProxySelector: true,
         ProxyAdBanner: true,
-        GroupSelector: true,
+        GroupSelector: GroupSelectorStub,
         ModelWhitelistSelector: true,
         QuotaLimitCard: true,
       },
@@ -147,6 +173,7 @@ async function openCodexImportStep(toggleClicks = 0) {
 
 describe('CreateAccountModal OpenAI long-context billing', () => {
   beforeEach(() => {
+    authIsSimpleMode.value = true
     createAccountMock.mockReset().mockResolvedValue({ id: 42, platform: 'openai', type: 'apikey' })
     probeUpstreamBillingMock.mockReset().mockResolvedValue({})
     importCodexSessionMock.mockReset().mockResolvedValue({
@@ -160,6 +187,34 @@ describe('CreateAccountModal OpenAI long-context billing', () => {
     createOpenAICodexPATMock.mockReset().mockResolvedValue({})
   })
 
+  it('hides only the redundant account toggle when every selected group enables tier pricing', async () => {
+    authIsSimpleMode.value = false
+    const wrapper = mountModal([
+      { id: 1, long_context_pricing_enabled: true },
+      { id: 2, long_context_pricing_enabled: true },
+    ])
+
+    await selectButtonByText(wrapper, 'OpenAI')
+    await wrapper.get('[data-testid="select-pricing-groups"]').trigger('click')
+
+    expect(wrapper.find('[data-testid="openai-long-context-billing-toggle"]').exists()).toBe(false)
+    expect(wrapper.find('[data-testid="create-openai-ws-mode"]').exists()).toBe(true)
+  })
+
+  it('keeps the account toggle when any selected group disables tier pricing', async () => {
+    authIsSimpleMode.value = false
+    const wrapper = mountModal([
+      { id: 1, long_context_pricing_enabled: true },
+      { id: 2, long_context_pricing_enabled: false },
+    ])
+
+    await selectButtonByText(wrapper, 'OpenAI')
+    await wrapper.get('[data-testid="select-pricing-groups"]').trigger('click')
+
+    expect(wrapper.find('[data-testid="openai-long-context-billing-toggle"]').exists()).toBe(true)
+    expect(wrapper.find('[data-testid="create-openai-ws-mode"]').exists()).toBe(true)
+  })
+
   it('sends false explicitly for normal OpenAI account creation by default', async () => {
     await submitApiKeyAccount('openai')
 

frontend/src/components/account/__tests__/longContextBilling.spec.ts

@@ -0,0 +1,29 @@
+import { describe, expect, it } from 'vitest'
+
+import { allSelectedGroupsEnableLongContextPricing } from '../longContextBilling'
+
+const group = (id: number, enabled: boolean) => ({
+  id,
+  long_context_pricing_enabled: enabled,
+}) as any
+
+describe('allSelectedGroupsEnableLongContextPricing', () => {
+  it('hides the account override when every selected group enables tier pricing', () => {
+    expect(allSelectedGroupsEnableLongContextPricing(
+      [1, 2],
+      [group(1, true), group(2, true)]
+    )).toBe(true)
+  })
+
+  it('keeps the account override when any selected group disables tier pricing', () => {
+    expect(allSelectedGroupsEnableLongContextPricing(
+      [1, 2],
+      [group(1, true), group(2, false)]
+    )).toBe(false)
+  })
+
+  it('keeps the account override when selection is empty or group data is incomplete', () => {
+    expect(allSelectedGroupsEnableLongContextPricing([], [group(1, true)])).toBe(false)
+    expect(allSelectedGroupsEnableLongContextPricing([1, 2], [group(1, true)])).toBe(false)
+  })
+})

frontend/src/components/account/longContextBilling.ts

@@ -0,0 +1,11 @@
+import type { AdminGroup } from '@/types'
+
+export function allSelectedGroupsEnableLongContextPricing(
+  groupIds: number[],
+  groups: AdminGroup[]
+): boolean {
+  if (groupIds.length === 0) return false
+  const selectedGroups = groups.filter(group => groupIds.includes(group.id))
+  return selectedGroups.length === groupIds.length &&
+    selectedGroups.every(group => group.long_context_pricing_enabled === true)
+}

frontend/src/components/admin/channel/IntervalRow.vue

@@ -3,35 +3,59 @@
        :class="isEmpty ? 'border-red-400 bg-red-50 dark:border-red-500 dark:bg-red-950/20' : 'border-gray-200 bg-white dark:border-dark-500 dark:bg-dark-700'">
     <!-- Token mode: context range + prices ($/MTok) -->
     <template v-if="mode === 'token'">
-      <div class="w-20">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.minTokens') }}</label>
-        <input :value="interval.min_tokens" @input="emitField('min_tokens', toInt(($event.target as HTMLInputElement).value))"
-          type="number" min="0" class="input mt-0.5 text-xs" />
-      </div>
-      <div class="w-20">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.maxTokens') }} <span class="text-gray-300">{{ t('admin.channels.form.inclusive') }}</span></label>
-        <input :value="interval.max_tokens ?? ''" @input="emitField('max_tokens', toIntOrNull(($event.target as HTMLInputElement).value))"
-          type="number" min="0" class="input mt-0.5 text-xs" :placeholder="'∞'" />
-      </div>
-      <div class="flex-1">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.inputPrice') }} <span v-if="isEmpty" class="text-red-500">*</span> <span class="text-gray-300">$/M</span></label>
-        <input :value="interval.input_price" @input="emitField('input_price', ($event.target as HTMLInputElement).value)"
-          type="number" step="any" min="0" class="input mt-0.5 text-xs" />
-      </div>
-      <div class="flex-1">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.outputPrice') }} <span v-if="isEmpty" class="text-red-500">*</span> <span class="text-gray-300">$/M</span></label>
-        <input :value="interval.output_price" @input="emitField('output_price', ($event.target as HTMLInputElement).value)"
-          type="number" step="any" min="0" class="input mt-0.5 text-xs" />
-      </div>
-      <div class="flex-1">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheWritePriceShort') }} <span class="text-gray-300">$/M</span></label>
-        <input :value="interval.cache_write_price" @input="emitField('cache_write_price', ($event.target as HTMLInputElement).value)"
-          type="number" step="any" min="0" class="input mt-0.5 text-xs" />
-      </div>
-      <div class="flex-1">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheReadPriceShort') }} <span class="text-gray-300">$/M</span></label>
-        <input :value="interval.cache_read_price" @input="emitField('cache_read_price', ($event.target as HTMLInputElement).value)"
-          type="number" step="any" min="0" class="input mt-0.5 text-xs" />
+      <div class="grid min-w-0 flex-1 grid-cols-2 gap-2 sm:grid-cols-4 xl:grid-cols-6">
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.minTokens') }}</label>
+          <input :value="interval.min_tokens" @input="emitField('min_tokens', toInt(($event.target as HTMLInputElement).value))"
+            type="number" min="0" class="input mt-0.5 text-xs" />
+        </div>
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.maxTokens') }} <span class="text-gray-300">{{ t('admin.channels.form.inclusive') }}</span></label>
+          <input :value="interval.max_tokens ?? ''" @input="emitField('max_tokens', toIntOrNull(($event.target as HTMLInputElement).value))"
+            type="number" min="0" class="input mt-0.5 text-xs" :placeholder="'∞'" />
+        </div>
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.inputPrice') }} <span v-if="isEmpty" class="text-red-500">*</span> <span class="text-gray-300">$/M</span></label>
+          <input :value="interval.input_price" @input="emitField('input_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-xs" />
+        </div>
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.outputPrice') }} <span v-if="isEmpty" class="text-red-500">*</span> <span class="text-gray-300">$/M</span></label>
+          <input :value="interval.output_price" @input="emitField('output_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-xs" />
+        </div>
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheWritePriceShort') }} <span class="text-gray-300">$/M</span></label>
+          <input :value="interval.cache_write_price" @input="emitField('cache_write_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-xs" />
+        </div>
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheReadPriceShort') }} <span class="text-gray-300">$/M</span></label>
+          <input :value="interval.cache_read_price" @input="emitField('cache_read_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-xs" />
+        </div>
+        <template v-if="enableMultipliers">
+          <div>
+            <label class="text-xs text-gray-400">{{ t('admin.channels.form.inputMultiplier') }}</label>
+            <input :value="interval.input_multiplier" @input="emitField('input_multiplier', ($event.target as HTMLInputElement).value)"
+              type="number" step="any" min="0.000001" class="input mt-0.5 text-xs" />
+          </div>
+          <div>
+            <label class="text-xs text-gray-400">{{ t('admin.channels.form.outputMultiplier') }}</label>
+            <input :value="interval.output_multiplier" @input="emitField('output_multiplier', ($event.target as HTMLInputElement).value)"
+              type="number" step="any" min="0.000001" class="input mt-0.5 text-xs" />
+          </div>
+          <div>
+            <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheWriteMultiplier') }}</label>
+            <input :value="interval.cache_write_multiplier" @input="emitField('cache_write_multiplier', ($event.target as HTMLInputElement).value)"
+              type="number" step="any" min="0.000001" class="input mt-0.5 text-xs" />
+          </div>
+          <div>
+            <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheReadMultiplier') }}</label>
+            <input :value="interval.cache_read_multiplier" @input="emitField('cache_read_multiplier', ($event.target as HTMLInputElement).value)"
+              type="number" step="any" min="0.000001" class="input mt-0.5 text-xs" />
+          </div>
+        </template>
       </div>
     </template>
 
@@ -79,6 +103,7 @@ const { t } = useI18n()
 const props = defineProps<{
   interval: IntervalFormEntry
   mode: BillingMode
+  enableMultipliers?: boolean
 }>()
 
 const emit = defineEmits<{
@@ -93,6 +118,10 @@ const isEmpty = computed(() => {
     (iv.output_price == null || iv.output_price === '') &&
     (iv.cache_write_price == null || iv.cache_write_price === '') &&
     (iv.cache_read_price == null || iv.cache_read_price === '') &&
+    (iv.input_multiplier == null || iv.input_multiplier === '') &&
+    (iv.output_multiplier == null || iv.output_multiplier === '') &&
+    (iv.cache_write_multiplier == null || iv.cache_write_multiplier === '') &&
+    (iv.cache_read_multiplier == null || iv.cache_read_multiplier === '') &&
     (iv.per_request_price == null || iv.per_request_price === '')
 })
 

frontend/src/components/admin/channel/PricingEntryCard.vue

@@ -139,7 +139,20 @@
             </div>
           </div>
 
-          <!-- Token intervals (channel-only; group long-context uses official presets) -->
+          <div v-if="enableTierMultipliers" class="mt-3 grid max-w-md grid-cols-2 gap-2">
+            <div>
+              <label class="text-xs text-gray-400">{{ t('admin.channels.form.fastMultiplier') }}</label>
+              <input :value="entry.fast_multiplier" @input="emitField('fast_multiplier', ($event.target as HTMLInputElement).value)"
+                type="number" step="any" min="0.000001" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.multiplierPlaceholder')" />
+            </div>
+            <div>
+              <label class="text-xs text-gray-400">{{ t('admin.channels.form.flexMultiplier') }}</label>
+              <input :value="entry.flex_multiplier" @input="emitField('flex_multiplier', ($event.target as HTMLInputElement).value)"
+                type="number" step="any" min="0.000001" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.multiplierPlaceholder')" />
+            </div>
+          </div>
+
+          <!-- Channel token intervals; the group long-context toggle controls whether tiers apply. -->
           <div v-if="!hideTokenIntervals" class="mt-3">
             <div class="flex items-center justify-between">
               <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
@@ -156,6 +169,7 @@
                 :key="idx"
                 :interval="iv"
                 :mode="entry.billing_mode"
+                :enable-multipliers="enableTierMultipliers"
                 @update="updateInterval(idx, $event)"
                 @remove="removeInterval(idx)"
               />
@@ -262,9 +276,11 @@ const props = withDefaults(defineProps<{
   platform?: string
   hideTokenIntervals?: boolean
   enableTimePricing?: boolean
+  enableTierMultipliers?: boolean
 }>(), {
   hideTokenIntervals: false,
   enableTimePricing: false,
+  enableTierMultipliers: false,
 })
 
 const emit = defineEmits<{
@@ -297,6 +313,8 @@ function addInterval() {
     min_tokens: 0, max_tokens: null, tier_label: '',
     input_price: null, output_price: null, cache_write_price: null,
     cache_read_price: null, per_request_price: null,
+    input_multiplier: null, output_multiplier: null,
+    cache_write_multiplier: null, cache_read_multiplier: null,
     sort_order: intervals.length
   })
   emit('update', { ...props.entry, intervals })
@@ -311,6 +329,8 @@ function addMediaTier() {
     min_tokens: 0, max_tokens: null, tier_label: labels[intervals.length] || '',
     input_price: null, output_price: null, cache_write_price: null,
     cache_read_price: null, per_request_price: null,
+    input_multiplier: null, output_multiplier: null,
+    cache_write_multiplier: null, cache_read_multiplier: null,
     sort_order: intervals.length
   })
   emit('update', { ...props.entry, intervals })

frontend/src/components/admin/channel/__tests__/PricingEntryCard.timePricing.spec.ts

@@ -16,6 +16,8 @@ function createEntry(billingMode: PricingFormEntry['billing_mode'] = 'token'): P
     output_price: null,
     cache_write_price: null,
     cache_read_price: null,
+    fast_multiplier: null,
+    flex_multiplier: null,
     image_input_price: null,
     image_output_price: null,
     per_request_price: null,
@@ -69,3 +71,16 @@ describe('PricingEntryCard time pricing visibility', () => {
     expect(entry.time_pricing.periods).toHaveLength(1)
   })
 })
+
+describe('PricingEntryCard service tier multipliers', () => {
+  it('shows Fast and Flex controls only when explicitly enabled', () => {
+    const hidden = shallowMount(PricingEntryCard, { props: { entry: createEntry() } })
+    expect(hidden.text()).not.toContain('admin.channels.form.fastMultiplier')
+
+    const shown = shallowMount(PricingEntryCard, {
+      props: { entry: createEntry(), enableTierMultipliers: true },
+    })
+    expect(shown.text()).toContain('admin.channels.form.fastMultiplier')
+    expect(shown.text()).toContain('admin.channels.form.flexMultiplier')
+  })
+})

frontend/src/components/admin/channel/__tests__/types.spec.ts

@@ -1,8 +1,11 @@
 import { describe, expect, it } from 'vitest'
 import {
+  apiIntervalsToForm,
   apiTimePricingToForm,
   createDefaultTimePricingForm,
+  formIntervalsToAPI,
   formTimePricingToAPI,
+  isValidPositiveMultiplier,
   validateIntervals,
   validateTimePricing,
   type IntervalFormEntry,
@@ -10,6 +13,51 @@ import {
   type TimePricingPeriodFormEntry,
 } from '../types'
 
+describe('interval multiplier conversion', () => {
+  it('preserves component multipliers without MTok conversion', () => {
+    const form = apiIntervalsToForm([{
+      min_tokens: 272000,
+      max_tokens: null,
+      tier_label: '',
+      input_price: null,
+      output_price: null,
+      cache_write_price: null,
+      cache_read_price: null,
+      input_multiplier: 2,
+      output_multiplier: 1.5,
+      cache_write_multiplier: 2,
+      cache_read_multiplier: 2,
+      per_request_price: null,
+      sort_order: 0,
+    }])
+
+    expect(form[0].input_multiplier).toBe(2)
+    expect(form[0].output_multiplier).toBe(1.5)
+    expect(formIntervalsToAPI(form)[0]).toMatchObject({
+      input_multiplier: 2,
+      output_multiplier: 1.5,
+      cache_write_multiplier: 2,
+      cache_read_multiplier: 2,
+    })
+  })
+})
+
+describe('positive multiplier validation', () => {
+  it('accepts empty and positive values but rejects zero and negative values', () => {
+    expect(isValidPositiveMultiplier(null)).toBe(true)
+    expect(isValidPositiveMultiplier('')).toBe(true)
+    expect(isValidPositiveMultiplier('0.5')).toBe(true)
+    expect(isValidPositiveMultiplier(0)).toBe(false)
+    expect(isValidPositiveMultiplier(-1)).toBe(false)
+  })
+
+  it('rejects a zero interval multiplier', () => {
+    expect(validateIntervals([
+      makeInterval({ min_tokens: 100, input_multiplier: 0 }),
+    ], 'token', t)).toContain('multiplierPositive')
+  })
+})
+
 function makeInterval(over: Partial<IntervalFormEntry>): IntervalFormEntry {
   return {
     min_tokens: 0,
@@ -19,6 +67,10 @@ function makeInterval(over: Partial<IntervalFormEntry>): IntervalFormEntry {
     output_price: null,
     cache_write_price: null,
     cache_read_price: null,
+    input_multiplier: null,
+    output_multiplier: null,
+    cache_write_multiplier: null,
+    cache_read_multiplier: null,
     per_request_price: null,
     sort_order: 0,
     ...over,

frontend/src/components/admin/channel/types.ts

@@ -10,6 +10,10 @@ export interface IntervalFormEntry {
   output_price: number | string | null
   cache_write_price: number | string | null
   cache_read_price: number | string | null
+  input_multiplier: number | string | null
+  output_multiplier: number | string | null
+  cache_write_multiplier: number | string | null
+  cache_read_multiplier: number | string | null
   per_request_price: number | string | null
   sort_order: number
 }
@@ -21,6 +25,8 @@ export interface PricingFormEntry {
   output_price: number | string | null
   cache_write_price: number | string | null
   cache_read_price: number | string | null
+  fast_multiplier?: number | string | null
+  flex_multiplier?: number | string | null
   image_input_price: number | string | null
   image_output_price: number | string | null
   per_request_price: number | string | null
@@ -164,6 +170,12 @@ export function toNullableNumber(val: number | string | null | undefined): numbe
   return isNaN(num) ? null : num
 }
 
+export function isValidPositiveMultiplier(val: number | string | null | undefined): boolean {
+  if (val === null || val === undefined || val === '') return true
+  const multiplier = Number(val)
+  return Number.isFinite(multiplier) && multiplier > 0
+}
+
 /** 前端显示值($/MTok) → 后端存储值(per-token) */
 export function mTokToPerToken(val: number | string | null | undefined): number | null {
   const num = toNullableNumber(val)
@@ -186,6 +198,10 @@ export function apiIntervalsToForm(intervals: PricingInterval[]): IntervalFormEn
     output_price: perTokenToMTok(iv.output_price),
     cache_write_price: perTokenToMTok(iv.cache_write_price),
     cache_read_price: perTokenToMTok(iv.cache_read_price),
+    input_multiplier: iv.input_multiplier,
+    output_multiplier: iv.output_multiplier,
+    cache_write_multiplier: iv.cache_write_multiplier,
+    cache_read_multiplier: iv.cache_read_multiplier,
     per_request_price: iv.per_request_price,
     sort_order: iv.sort_order
   }))
@@ -200,6 +216,10 @@ export function formIntervalsToAPI(intervals: IntervalFormEntry[]): PricingInter
     output_price: mTokToPerToken(iv.output_price),
     cache_write_price: mTokToPerToken(iv.cache_write_price),
     cache_read_price: mTokToPerToken(iv.cache_read_price),
+    input_multiplier: toNullableNumber(iv.input_multiplier),
+    output_multiplier: toNullableNumber(iv.output_multiplier),
+    cache_write_multiplier: toNullableNumber(iv.cache_write_multiplier),
+    cache_read_multiplier: toNullableNumber(iv.cache_read_multiplier),
     per_request_price: toNullableNumber(iv.per_request_price),
     sort_order: iv.sort_order
   }))
@@ -332,6 +352,20 @@ function validateIntervalPrices(iv: IntervalFormEntry, idx: number, t: Translate
       )
     }
   }
+  const multipliers: [string, number | string | null][] = [
+    ['inputMultiplier', iv.input_multiplier],
+    ['outputMultiplier', iv.output_multiplier],
+    ['cacheWriteMultiplier', iv.cache_write_multiplier],
+    ['cacheReadMultiplier', iv.cache_read_multiplier],
+  ]
+  for (const [key, val] of multipliers) {
+    if (!isValidPositiveMultiplier(val)) {
+      return intervalValidationMessage(t, 'multiplierPositive', {
+        index,
+        field: intervalPriceLabel(t, key),
+      })
+    }
+  }
   return null
 }