feat: 分组支持逐模型定价，并可关闭长上下文阶梯

运营需要按分组覆盖渠道/内置价，且部分套餐不应自动吃 200k 倍率。
原先只能改渠道价卡，分组侧只剩 Voice 三列。

- groups 新增 model_pricing / long_context_pricing_enabled，解析链改为 Group → Channel → 内置
- 关闭长上下文时 token 模型只取最低档；video 按秒计费可写进同一价卡
- 回退价对齐官方卡：4.5 缓存 $0.30、4.3/imagine/audio/search 默认值一并校正

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

@@ -194,11 +194,11 @@
           </div>
         </div>
 
-        <!-- Image mode -->
-        <div v-else-if="entry.billing_mode === 'image'">
+        <!-- Image/video mode -->
+        <div v-else-if="entry.billing_mode === 'image' || entry.billing_mode === 'video'">
           <!-- Default image price (per-request, same as per_request mode) -->
           <label class="mt-3 block text-xs font-medium text-gray-500 dark:text-gray-400">
-            {{ t('admin.channels.form.defaultImagePrice') }}
+            {{ entry.billing_mode === 'video' ? t('admin.channels.form.defaultVideoPrice') : t('admin.channels.form.defaultImagePrice') }}
             <span class="ml-1 font-normal text-gray-400">$</span>
           </label>
           <div class="mt-1 w-48">
@@ -209,9 +209,9 @@
           <!-- Image tiers -->
           <div class="mt-3 flex items-center justify-between">
             <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
-              {{ t('admin.channels.form.imageTiers') }}
+              {{ entry.billing_mode === 'video' ? t('admin.channels.form.videoTiers') : t('admin.channels.form.imageTiers') }}
             </label>
-            <button type="button" @click="addImageTier" class="text-xs text-primary-600 hover:text-primary-700">
+            <button type="button" @click="addMediaTier" class="text-xs text-primary-600 hover:text-primary-700">
               + {{ t('admin.channels.form.addTier') }}
             </button>
           </div>
@@ -261,7 +261,8 @@ const collapsed = ref(props.entry.models.length > 0)
 const billingModeOptions = computed(() => [
   { value: 'token', label: t('admin.channels.billingMode.token') },
   { value: 'per_request', label: t('admin.channels.billingMode.perRequest') },
-  { value: 'image', label: t('admin.channels.billingMode.image') }
+  { value: 'image', label: t('admin.channels.billingMode.image') },
+  { value: 'video', label: t('admin.channels.billingMode.video') }
 ])
 
 const billingModeLabel = computed(() => {
@@ -284,9 +285,11 @@ function addInterval() {
   emit('update', { ...props.entry, intervals })
 }
 
-function addImageTier() {
+function addMediaTier() {
   const intervals = [...(props.entry.intervals || [])]
-  const labels = ['1K', '2K', '4K', 'HD']
+  const labels = props.entry.billing_mode === 'video'
+    ? ['480p', '720p', '1080p']
+    : ['1K', '2K', '4K', 'HD']
   intervals.push({
     min_tokens: 0, max_tokens: null, tier_label: labels[intervals.length] || '',
     input_price: null, output_price: null, cache_write_price: null,

frontend/src/constants/channel.ts

@@ -7,10 +7,12 @@ export type ChannelStatus = typeof CHANNEL_STATUS_ACTIVE | typeof CHANNEL_STATUS
 export const BILLING_MODE_TOKEN = 'token' as const
 export const BILLING_MODE_PER_REQUEST = 'per_request' as const
 export const BILLING_MODE_IMAGE = 'image' as const
+export const BILLING_MODE_VIDEO = 'video' as const
 export type BillingMode =
   | typeof BILLING_MODE_TOKEN
   | typeof BILLING_MODE_PER_REQUEST
   | typeof BILLING_MODE_IMAGE
+  | typeof BILLING_MODE_VIDEO
 
 /** Billing-model-source values (must match service.BillingModelSource* constants in Go). */
 export const BILLING_MODEL_SOURCE_REQUESTED = 'requested' as const

frontend/src/i18n/locales/en/admin/channels.ts

@@ -93,7 +93,8 @@ export default {
       billingMode: {
         token: 'Token',
         perRequest: 'Per Request',
-        image: 'Image (Per Request)'
+        image: 'Image (Per Request)',
+        video: 'Video (Per Second)'
       },
       form: {
         name: 'Name',
@@ -127,6 +128,7 @@ export default {
         addInterval: 'Add Interval',
         requestTiers: 'Request Tiers',
         imageTiers: 'Image Tiers (Per Request)',
+        videoTiers: 'Video Resolution Tiers (Per Second)',
         addTier: 'Add Tier',
         noTiersYet: 'No tiers yet. Click add to configure per-request pricing.',
         noPricingRules: 'No pricing rules yet. Click "Add" to create one.',
@@ -152,6 +154,7 @@ export default {
         restrictModelsHint: 'When enabled, only models in the pricing list are allowed. Others will be rejected.',
         defaultPerRequestPrice: 'Default per-request price (fallback when no tier matches)',
         defaultImagePrice: 'Default image price (fallback when no tier matches)',
+        defaultVideoPrice: 'Default video price per second (fallback when no tier matches)',
         platformConfig: 'Platform Configuration',
         webSearchEmulation: 'Web Search Emulation',
         webSearchEmulationHint: '⚠️ When enabled, all accounts in this channel\'s Anthropic groups will intercept web_search requests. Use with caution.',

frontend/src/i18n/locales/en/admin/overview.ts

@@ -1005,6 +1005,13 @@ export default {
         searchPricePer1k: 'Search price per 1k calls (USD)',
         pricePlaceholder: 'optional'
       },
+      modelPricing: {
+        title: 'Per-model group pricing',
+        description: 'Overrides channel and built-in prices for matching models. Use per-request tiers such as realtime, tts, and stt for audio.',
+        longContext: 'Enable long-context tier pricing',
+        longContextHint: 'When disabled, token models always use the lowest configured tier.',
+        add: 'Add model price'
+      },
       voicePricing: {
         title: 'Grok Voice Pricing',
         description: 'Optional per-group prices for Voice realtime / TTS / STT (USD). Leave empty to leave unpriced.',

frontend/src/i18n/locales/zh/admin/channels.ts

@@ -93,7 +93,8 @@ export default {
       billingMode: {
         token: 'Token',
         perRequest: '按次',
-        image: '图片（按次）'
+        image: '图片（按次）',
+        video: '视频（按秒）'
       },
       form: {
         name: '名称',
@@ -127,6 +128,7 @@ export default {
         addInterval: '添加区间',
         requestTiers: '按次计费层级',
         imageTiers: '图片计费层级（按次）',
+        videoTiers: '视频分辨率层级（按秒）',
         addTier: '添加层级',
         noTiersYet: '暂无层级，点击添加配置按次计费价格',
         noPricingRules: '暂无定价规则，点击"添加"创建',
@@ -152,6 +154,7 @@ export default {
         restrictModelsHint: '开启后，仅允许模型定价列表中的模型。不在列表中的模型请求将被拒绝。',
         defaultPerRequestPrice: '默认单次价格（未命中层级时使用）',
         defaultImagePrice: '默认图片价格（未命中层级时使用）',
+        defaultVideoPrice: '默认视频每秒价格（未命中层级时使用）',
         platformConfig: '平台配置',
         webSearchEmulation: 'Web Search 模拟',
         webSearchEmulationHint: '⚠️ 开启后该渠道下所有 Anthropic 分组的账号将自动拦截 web_search 请求，请谨慎操作',

frontend/src/i18n/locales/zh/admin/overview.ts

@@ -1002,6 +1002,13 @@ export default {
         searchPricePer1k: '搜索每千次价格（USD）',
         pricePlaceholder: '可选'
       },
+      modelPricing: {
+        title: '分组逐模型定价',
+        description: '匹配模型后覆盖渠道和内置价格。音频可用按次层级配置 realtime、tts、stt。',
+        longContext: '启用长上下文阶梯定价',
+        longContextHint: '关闭时，Token 模型始终只使用配置的最低档。',
+        add: '添加模型价格'
+      },
       voicePricing: {
         title: 'Grok Voice 定价',
         description: '分组级 Voice realtime / TTS / STT 单价（USD）。留空表示未配置。',

frontend/src/types/index.ts

@@ -558,6 +558,7 @@ export interface Group {
   daily_limit_usd: number | null
   weekly_limit_usd: number | null
   monthly_limit_usd: number | null
+  long_context_pricing_enabled: boolean
   // 图片生成计费配置
   allow_image_generation: boolean
   allow_batch_image_generation: boolean
@@ -604,6 +605,7 @@ export interface Group {
 }
 
 export interface AdminGroup extends Group {
+  model_pricing: import('@/api/admin/channels').ChannelModelPricing[]
   // 分组利润控制（openai/anthropic/gemini/grok/antigravity 分组可启用；margin/buffer 为小数存储）。
   // 仅管理员可见：与 rate_multiplier 相乘即可反推上游成本上限，不得下放到 Group。
   profit_control_enabled: boolean
@@ -766,6 +768,8 @@ export interface CreateGroupRequest {
   daily_limit_usd?: number | null
   weekly_limit_usd?: number | null
   monthly_limit_usd?: number | null
+  long_context_pricing_enabled?: boolean
+  model_pricing?: import('@/api/admin/channels').ChannelModelPricing[]
   allow_image_generation?: boolean
   allow_batch_image_generation?: boolean
   image_rate_independent?: boolean
@@ -826,6 +830,8 @@ export interface UpdateGroupRequest {
   daily_limit_usd?: number | null
   weekly_limit_usd?: number | null
   monthly_limit_usd?: number | null
+  long_context_pricing_enabled?: boolean
+  model_pricing?: import('@/api/admin/channels').ChannelModelPricing[]
   allow_image_generation?: boolean
   allow_batch_image_generation?: boolean
   image_rate_independent?: boolean

frontend/src/views/admin/GroupsView.vue

@@ -1484,6 +1484,25 @@
         </div>
 
 
+        <div class="border-t border-gray-200 pt-4 mt-4 dark:border-dark-400">
+          <div class="flex items-start justify-between gap-4">
+            <div>
+              <h4 class="text-sm font-medium text-gray-700 dark:text-gray-300">{{ t("admin.groups.modelPricing.title") }}</h4>
+              <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t("admin.groups.modelPricing.description") }}</p>
+            </div>
+            <button type="button" class="btn btn-secondary" @click="addGroupPricing(createForm.model_pricing)">
+              <Icon name="plus" size="sm" class="mr-1" />{{ t("admin.groups.modelPricing.add") }}
+            </button>
+          </div>
+          <label class="mt-3 flex items-start gap-2">
+            <input v-model="createForm.long_context_pricing_enabled" type="checkbox" class="mt-0.5" />
+            <span><span class="block text-sm text-gray-700 dark:text-gray-300">{{ t("admin.groups.modelPricing.longContext") }}</span><span class="block text-xs text-gray-500">{{ t("admin.groups.modelPricing.longContextHint") }}</span></span>
+          </label>
+          <div class="mt-3 space-y-2">
+            <PricingEntryCard v-for="(entry, index) in createForm.model_pricing" :key="index" :entry="entry" :platform="createForm.platform" @update="createForm.model_pricing[index] = $event" @remove="createForm.model_pricing.splice(index, 1)" />
+          </div>
+        </div>
+
         <!-- Grok Voice 显式定价（仅 grok 平台） -->
         <div
           v-if="createForm.platform === 'grok'"
@@ -3187,6 +3206,25 @@
         </div>
 
 
+        <div class="border-t border-gray-200 pt-4 mt-4 dark:border-dark-400">
+          <div class="flex items-start justify-between gap-4">
+            <div>
+              <h4 class="text-sm font-medium text-gray-700 dark:text-gray-300">{{ t("admin.groups.modelPricing.title") }}</h4>
+              <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t("admin.groups.modelPricing.description") }}</p>
+            </div>
+            <button type="button" class="btn btn-secondary" @click="addGroupPricing(editForm.model_pricing)">
+              <Icon name="plus" size="sm" class="mr-1" />{{ t("admin.groups.modelPricing.add") }}
+            </button>
+          </div>
+          <label class="mt-3 flex items-start gap-2">
+            <input v-model="editForm.long_context_pricing_enabled" type="checkbox" class="mt-0.5" />
+            <span><span class="block text-sm text-gray-700 dark:text-gray-300">{{ t("admin.groups.modelPricing.longContext") }}</span><span class="block text-xs text-gray-500">{{ t("admin.groups.modelPricing.longContextHint") }}</span></span>
+          </label>
+          <div class="mt-3 space-y-2">
+            <PricingEntryCard v-for="(entry, index) in editForm.model_pricing" :key="index" :entry="entry" :platform="editForm.platform" @update="editForm.model_pricing[index] = $event" @remove="editForm.model_pricing.splice(index, 1)" />
+          </div>
+        </div>
+
         <!-- Grok Voice 显式定价（仅 grok 平台） -->
         <div
           v-if="editForm.platform === 'grok'"
@@ -4377,6 +4415,16 @@ import GroupRateMultipliersModal from "@/components/admin/group/GroupRateMultipl
 import GroupRPMOverridesModal from "@/components/admin/group/GroupRPMOverridesModal.vue";
 import GroupCapacityBadge from "@/components/common/GroupCapacityBadge.vue";
 import ReasoningEffortPolicyFields from "@/components/admin/group/ReasoningEffortPolicyFields.vue";
+import PricingEntryCard from "@/components/admin/channel/PricingEntryCard.vue";
+import type { PricingFormEntry } from "@/components/admin/channel/types";
+import {
+  apiIntervalsToForm,
+  formIntervalsToAPI,
+  mTokToPerToken,
+  perTokenToMTok,
+  toNullableNumber,
+} from "@/components/admin/channel/types";
+import type { ChannelModelPricing } from "@/api/admin/channels";
 import { VueDraggable } from "vue-draggable-plus";
 import { createStableObjectKeyResolver } from "@/utils/stableObjectKey";
 import { extractApiErrorMessage } from "@/utils/apiError";
@@ -4430,6 +4478,58 @@ import {
   videoModelPriceFamilyRows,
 } from "./groupsVideoModelPricing";
 
+const emptyGroupPricing = (): PricingFormEntry => ({
+  models: [],
+  billing_mode: "token",
+  input_price: null,
+  output_price: null,
+  cache_write_price: null,
+  cache_read_price: null,
+  image_input_price: null,
+  image_output_price: null,
+  per_request_price: null,
+  intervals: [],
+});
+
+const addGroupPricing = (entries: PricingFormEntry[]) =>
+  entries.push(emptyGroupPricing());
+
+const groupPricingFromAPI = (
+  pricing: ChannelModelPricing[] | undefined,
+): PricingFormEntry[] =>
+  (pricing || []).map((entry) => ({
+    models: entry.models || [],
+    billing_mode: entry.billing_mode || "token",
+    input_price: perTokenToMTok(entry.input_price),
+    output_price: perTokenToMTok(entry.output_price),
+    cache_write_price: perTokenToMTok(entry.cache_write_price),
+    cache_read_price: perTokenToMTok(entry.cache_read_price),
+    image_input_price: perTokenToMTok(entry.image_input_price),
+    image_output_price: perTokenToMTok(entry.image_output_price),
+    per_request_price: entry.per_request_price,
+    intervals: apiIntervalsToForm(entry.intervals || []),
+  }));
+
+const groupPricingToAPI = (
+  pricing: PricingFormEntry[],
+  platform: string,
+): ChannelModelPricing[] =>
+  pricing
+    .filter((entry) => entry.models.length > 0)
+    .map((entry) => ({
+      platform,
+      models: entry.models,
+      billing_mode: entry.billing_mode,
+      input_price: mTokToPerToken(entry.input_price),
+      output_price: mTokToPerToken(entry.output_price),
+      cache_write_price: mTokToPerToken(entry.cache_write_price),
+      cache_read_price: mTokToPerToken(entry.cache_read_price),
+      image_input_price: mTokToPerToken(entry.image_input_price),
+      image_output_price: mTokToPerToken(entry.image_output_price),
+      per_request_price: toNullableNumber(entry.per_request_price),
+      intervals: formIntervalsToAPI(entry.intervals || []),
+    }));
+
 const { t } = useI18n();
 const appStore = useAppStore();
 const onboardingStore = useOnboardingStore();
@@ -4913,6 +5013,8 @@ const createForm = reactive({
   daily_limit_usd: null as number | null,
   weekly_limit_usd: null as number | null,
   monthly_limit_usd: null as number | null,
+  long_context_pricing_enabled: false,
+  model_pricing: [] as PricingFormEntry[],
   // 图片生成计费配置
   allow_image_generation: false,
   allow_batch_image_generation: false,
@@ -5272,6 +5374,8 @@ const editForm = reactive({
   daily_limit_usd: null as number | null,
   weekly_limit_usd: null as number | null,
   monthly_limit_usd: null as number | null,
+  long_context_pricing_enabled: false,
+  model_pricing: [] as PricingFormEntry[],
   // 图片生成计费配置
   allow_image_generation: false,
   allow_batch_image_generation: false,
@@ -5744,6 +5848,8 @@ const closeCreateModal = () => {
   createForm.video_price_720p = null;
   createForm.video_price_1080p = null;
   createForm.video_model_prices = createVideoModelPricesForm();
+  createForm.long_context_pricing_enabled = false;
+  createForm.model_pricing = [];
   createForm.web_search_price_per_call = null;
   createForm.search_price_per_1k = null;
   createForm.audio_realtime_price_per_min = null;
@@ -5843,6 +5949,10 @@ const handleCreateGroup = async () => {
     // 构建请求数据，包含模型路由配置
     const requestData = {
       ...createGroupForm,
+      model_pricing: groupPricingToAPI(
+        createForm.model_pricing,
+        createForm.platform,
+      ),
       daily_limit_usd: normalizeOptionalLimit(
         createForm.daily_limit_usd as number | string | null,
       ),
@@ -5965,6 +6075,9 @@ const handleEdit = async (group: AdminGroup) => {
   editForm.daily_limit_usd = group.daily_limit_usd;
   editForm.weekly_limit_usd = group.weekly_limit_usd;
   editForm.monthly_limit_usd = group.monthly_limit_usd;
+  editForm.long_context_pricing_enabled =
+    group.long_context_pricing_enabled ?? false;
+  editForm.model_pricing = groupPricingFromAPI(group.model_pricing);
   editForm.allow_image_generation = group.allow_image_generation ?? false;
   editForm.allow_batch_image_generation =
     group.allow_batch_image_generation ?? false;
@@ -6069,6 +6182,8 @@ const closeEditModal = () => {
   editForm.video_price_720p = null;
   editForm.video_price_1080p = null;
   editForm.video_model_prices = createVideoModelPricesForm();
+  editForm.long_context_pricing_enabled = false;
+  editForm.model_pricing = [];
   editForm.web_search_price_per_call = null;
   editForm.search_price_per_1k = null;
   editForm.audio_realtime_price_per_min = null;
@@ -6101,6 +6216,10 @@ const handleUpdateGroup = async () => {
     // 转换 fallback_group_id: null -> 0 (后端使用 0 表示清除)
     const payload = {
       ...editForm,
+      model_pricing: groupPricingToAPI(
+        editForm.model_pricing,
+        editForm.platform,
+      ),
       daily_limit_usd: normalizeOptionalLimit(
         editForm.daily_limit_usd as number | string | null,
       ),