feat(channel): 模型标签输入 + $/MTok 价格单位 + 左开右闭区间 + i18n

- 模型输入改为标签列表（输入回车添加，支持粘贴批量导入）
- 价格显示单位改为 $/MTok（每百万 token），提交时自动转换
- Token 模式增加图片输出价格字段（适配 Gemini 图片模型按 token 计费）
- 区间边界改为左开右闭 (min, max]，右边界包含
- 默认价格作为未命中区间时的回退价格
- 添加完整中英文 i18n 翻译

backend/internal/service/channel.go

@@ -110,11 +110,12 @@ func (c *Channel) GetModelPricing(model string) *ChannelModelPricing {
 }
 
 // FindMatchingInterval 在区间列表中查找匹配 totalTokens 的区间。
-// 通用辅助函数，供 GetIntervalForContext、ModelPricingResolver 等复用。
+// 区间为左开右闭 (min, max]：min 不含，max 包含。
+// 第一个区间 min=0 时，0 token 不匹配任何区间（回退到默认价格）。
 func FindMatchingInterval(intervals []PricingInterval, totalTokens int) *PricingInterval {
 	for i := range intervals {
 		iv := &intervals[i]
-		if totalTokens >= iv.MinTokens && (iv.MaxTokens == nil || totalTokens < *iv.MaxTokens) {
+		if totalTokens > iv.MinTokens && (iv.MaxTokens == nil || totalTokens <= *iv.MaxTokens) {
 			return iv
 		}
 	}

backend/internal/service/channel_test.go

@@ -87,10 +87,13 @@ func TestGetIntervalForContext(t *testing.T) {
 		wantNil    bool
 	}{
 		{"first interval", 50000, channelTestPtrFloat64(1e-6), false},
-		{"boundary: at min of second", 128000, channelTestPtrFloat64(2e-6), false},
-		{"boundary: at max of first (exclusive)", 128000, channelTestPtrFloat64(2e-6), false},
+		// (min, max] — 128000 在第一个区间的 max，包含，所以匹配第一个
+		{"boundary: max of first (inclusive)", 128000, channelTestPtrFloat64(1e-6), false},
+		// 128001 > 128000，匹配第二个区间
+		{"boundary: just above first max", 128001, channelTestPtrFloat64(2e-6), false},
 		{"unbounded interval", 500000, channelTestPtrFloat64(2e-6), false},
-		{"zero tokens", 0, channelTestPtrFloat64(1e-6), false},
+		// (0, max] — 0 不匹配任何区间（左开）
+		{"zero tokens: no match", 0, nil, true},
 	}
 
 	for _, tt := range tests {
@@ -112,8 +115,10 @@ func TestGetIntervalForContext_NoMatch(t *testing.T) {
 			{MinTokens: 10000, MaxTokens: channelTestPtrInt(50000)},
 		},
 	}
-	require.Nil(t, p.GetIntervalForContext(5000))
-	require.Nil(t, p.GetIntervalForContext(50000))
+	require.Nil(t, p.GetIntervalForContext(5000))  // 5000 <= 10000, not > min
+	require.Nil(t, p.GetIntervalForContext(10000)) // 10000 not > 10000 (left-open)
+	require.NotNil(t, p.GetIntervalForContext(50000)) // 50000 <= 50000 (right-closed)
+	require.Nil(t, p.GetIntervalForContext(50001))    // 50001 > 50000
 }
 
 func TestGetIntervalForContext_Empty(t *testing.T) {

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

@@ -1,125 +1,66 @@
 <template>
   <div class="flex items-start gap-2 rounded border border-gray-200 bg-white p-2 dark:border-dark-500 dark:bg-dark-700">
-    <!-- Token mode: context range + prices -->
+    <!-- Token mode: context range + prices ($/MTok) -->
     <template v-if="mode === 'token'">
       <div class="w-20">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.minTokens', 'Min (K)') }}</label>
-        <input
-          :value="interval.min_tokens"
-          @input="emitField('min_tokens', toInt(($event.target as HTMLInputElement).value))"
-          type="number"
-          min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">Min</label>
+        <input :value="interval.min_tokens" @input="emitField('min_tokens', toInt(($event.target as HTMLInputElement).value))"
+          type="number" min="0" class="input mt-0.5 text-xs" />
       </div>
       <div class="w-20">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.maxTokens', 'Max (K)') }}</label>
-        <input
-          :value="interval.max_tokens ?? ''"
-          @input="emitField('max_tokens', toIntOrNull(($event.target as HTMLInputElement).value))"
-          type="number"
-          min="0"
-          class="input mt-0.5 text-xs"
-          :placeholder="'∞'"
-        />
+        <label class="text-xs text-gray-400">Max <span class="text-gray-300">(含)</span></label>
+        <input :value="interval.max_tokens ?? ''" @input="emitField('max_tokens', toIntOrNull(($event.target as HTMLInputElement).value))"
+          type="number" min="0" class="input mt-0.5 text-xs" :placeholder="'∞'" />
       </div>
       <div class="flex-1">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.inputPrice', 'Input') }}</label>
-        <input
-          :value="interval.input_price"
-          @input="emitField('input_price', ($event.target as HTMLInputElement).value)"
-          type="number"
-          step="any" min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">{{ t('admin.channels.form.inputPrice', '输入') }} <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', 'Output') }}</label>
-        <input
-          :value="interval.output_price"
-          @input="emitField('output_price', ($event.target as HTMLInputElement).value)"
-          type="number"
-          step="any" min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">{{ t('admin.channels.form.outputPrice', '输出') }} <span class="text-gray-300">$/M</span></label>
+        <input :value="interval.output_price" @input="emitField('output_price', ($event.target as HTMLInputElement).value)"
+          type="number" step="any" min="0" class="input mt-0.5 text-xs" />
       </div>
       <div class="flex-1">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheWritePrice', 'Cache W') }}</label>
-        <input
-          :value="interval.cache_write_price"
-          @input="emitField('cache_write_price', ($event.target as HTMLInputElement).value)"
-          type="number"
-          step="any" min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheWritePrice', '缓存W') }} <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.cacheReadPrice', 'Cache R') }}</label>
-        <input
-          :value="interval.cache_read_price"
-          @input="emitField('cache_read_price', ($event.target as HTMLInputElement).value)"
-          type="number"
-          step="any" min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheReadPrice', '缓存R') }} <span class="text-gray-300">$/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>
 
-    <!-- Per-request / Image mode: tier label + price -->
+    <!-- Per-request / Image mode: tier label + context range + price -->
     <template v-else>
       <div class="w-24">
         <label class="text-xs text-gray-400">
-          {{ mode === 'image'
-            ? t('admin.channels.form.resolution', 'Resolution')
-            : t('admin.channels.form.tierLabel', 'Tier')
-          }}
+          {{ mode === 'image' ? t('admin.channels.form.resolution', '分辨率') : t('admin.channels.form.tierLabel', '层级') }}
         </label>
-        <input
-          :value="interval.tier_label"
-          @input="emitField('tier_label', ($event.target as HTMLInputElement).value)"
-          type="text"
-          class="input mt-0.5 text-xs"
-          :placeholder="mode === 'image' ? '1K / 2K / 4K' : ''"
-        />
+        <input :value="interval.tier_label" @input="emitField('tier_label', ($event.target as HTMLInputElement).value)"
+          type="text" class="input mt-0.5 text-xs" :placeholder="mode === 'image' ? '1K / 2K / 4K' : ''" />
       </div>
       <div class="w-20">
-        <label class="text-xs text-gray-400">{{ t('admin.channels.form.minTokens', 'Min') }}</label>
-        <input
-          :value="interval.min_tokens"
-          @input="emitField('min_tokens', toInt(($event.target as HTMLInputElement).value))"
-          type="number"
-          min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">Min</label>
+        <input :value="interval.min_tokens" @input="emitField('min_tokens', toInt(($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', 'Max') }}</label>
-        <input
-          :value="interval.max_tokens ?? ''"
-          @input="emitField('max_tokens', toIntOrNull(($event.target as HTMLInputElement).value))"
-          type="number"
-          min="0"
-          class="input mt-0.5 text-xs"
-          :placeholder="'∞'"
-        />
+        <label class="text-xs text-gray-400">Max <span class="text-gray-300">(含)</span></label>
+        <input :value="interval.max_tokens ?? ''" @input="emitField('max_tokens', toIntOrNull(($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.perRequestPrice', 'Price') }}</label>
-        <input
-          :value="interval.per_request_price"
-          @input="emitField('per_request_price', ($event.target as HTMLInputElement).value)"
-          type="number"
-          step="any" min="0"
-          class="input mt-0.5 text-xs"
-        />
+        <label class="text-xs text-gray-400">{{ t('admin.channels.form.perRequestPrice', '单次价格') }} <span class="text-gray-300">$</span></label>
+        <input :value="interval.per_request_price" @input="emitField('per_request_price', ($event.target as HTMLInputElement).value)"
+          type="number" step="any" min="0" class="input mt-0.5 text-xs" />
       </div>
     </template>
 
-    <button
-      type="button"
-      @click="emit('remove')"
-      class="mt-4 rounded p-0.5 text-gray-400 hover:text-red-500"
-    >
+    <button type="button" @click="emit('remove')" class="mt-4 rounded p-0.5 text-gray-400 hover:text-red-500">
       <Icon name="x" size="sm" />
     </button>
   </div>

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

@@ -0,0 +1,86 @@
+<template>
+  <div>
+    <!-- Tags display -->
+    <div class="flex flex-wrap gap-1.5 rounded-lg border border-gray-200 bg-white p-2 dark:border-dark-600 dark:bg-dark-800 min-h-[2.5rem]">
+      <span
+        v-for="(model, idx) in models"
+        :key="idx"
+        class="inline-flex items-center gap-1 rounded-md bg-primary-50 px-2 py-0.5 text-sm text-primary-700 dark:bg-primary-900/30 dark:text-primary-300"
+      >
+        {{ model }}
+        <button
+          type="button"
+          @click="removeModel(idx)"
+          class="ml-0.5 rounded-full p-0.5 hover:bg-primary-200 dark:hover:bg-primary-800"
+        >
+          <Icon name="x" size="xs" />
+        </button>
+      </span>
+      <input
+        ref="inputRef"
+        v-model="inputValue"
+        type="text"
+        class="flex-1 min-w-[120px] border-none bg-transparent text-sm outline-none placeholder:text-gray-400 dark:text-white"
+        :placeholder="models.length === 0 ? placeholder : ''"
+        @keydown.enter.prevent="addModel"
+        @keydown.tab.prevent="addModel"
+        @keydown.delete="handleBackspace"
+        @paste="handlePaste"
+      />
+    </div>
+    <p class="mt-1 text-xs text-gray-400">
+      {{ t('admin.channels.form.modelInputHint', 'Press Enter to add. Supports wildcard *.') }}
+    </p>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import { useI18n } from 'vue-i18n'
+import Icon from '@/components/icons/Icon.vue'
+
+const { t } = useI18n()
+
+const props = defineProps<{
+  models: string[]
+  placeholder?: string
+}>()
+
+const emit = defineEmits<{
+  'update:models': [models: string[]]
+}>()
+
+const inputValue = ref('')
+const inputRef = ref<HTMLInputElement>()
+
+function addModel() {
+  const val = inputValue.value.trim()
+  if (!val) return
+  if (!props.models.includes(val)) {
+    emit('update:models', [...props.models, val])
+  }
+  inputValue.value = ''
+}
+
+function removeModel(idx: number) {
+  const newModels = [...props.models]
+  newModels.splice(idx, 1)
+  emit('update:models', newModels)
+}
+
+function handleBackspace() {
+  if (inputValue.value === '' && props.models.length > 0) {
+    removeModel(props.models.length - 1)
+  }
+}
+
+function handlePaste(e: ClipboardEvent) {
+  e.preventDefault()
+  const text = e.clipboardData?.getData('text') || ''
+  const items = text.split(/[,\n;]+/).map(s => s.trim()).filter(Boolean)
+  if (items.length === 0) return
+  const unique = [...new Set([...props.models, ...items])]
+  emit('update:models', unique)
+  inputValue.value = ''
+}
+</script>

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

@@ -1,22 +1,21 @@
 <template>
   <div class="rounded-lg border border-gray-200 bg-gray-50 p-3 dark:border-dark-600 dark:bg-dark-800">
     <!-- Header: Models + Billing Mode + Remove -->
-    <div class="mb-2 flex items-start gap-2">
+    <div class="mb-3 flex items-start gap-2">
       <div class="flex-1">
         <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
-          {{ t('admin.channels.form.models', 'Models (comma separated, supports *)') }}
+          {{ t('admin.channels.form.models', '模型列表') }}
         </label>
-        <textarea
-          :value="entry.modelsInput"
-          @input="emit('update', { ...entry, modelsInput: ($event.target as HTMLTextAreaElement).value })"
-          rows="2"
-          class="input mt-1 text-sm"
-          :placeholder="t('admin.channels.form.modelsPlaceholder', 'claude-sonnet-4-20250514, claude-opus-4-20250514, *')"
-        ></textarea>
+        <ModelTagInput
+          :models="entry.models"
+          @update:models="emit('update', { ...entry, models: $event })"
+          :placeholder="t('admin.channels.form.modelsPlaceholder', '输入模型名后按回车添加，支持通配符 *')"
+          class="mt-1"
+        />
       </div>
       <div class="w-40">
         <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
-          {{ t('admin.channels.form.billingMode', 'Billing Mode') }}
+          {{ t('admin.channels.form.billingMode', '计费模式') }}
         </label>
         <Select
           :modelValue="entry.billing_mode"
@@ -34,61 +33,38 @@
       </button>
     </div>
 
-    <!-- Token mode: flat prices + intervals -->
+    <!-- Token mode -->
     <div v-if="entry.billing_mode === 'token'">
-      <!-- Flat prices (used when no intervals) -->
-      <div class="grid grid-cols-2 gap-2 sm:grid-cols-4">
+      <!-- Default prices (fallback when no interval matches) -->
+      <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
+        {{ t('admin.channels.form.defaultPrices', '默认价格（未命中区间时使用）') }}
+        <span class="ml-1 font-normal text-gray-400">$/MTok</span>
+      </label>
+      <div class="mt-1 grid grid-cols-2 gap-2 sm:grid-cols-5">
         <div>
-          <label class="text-xs text-gray-500 dark:text-gray-400">
-            {{ t('admin.channels.form.inputPrice', 'Input Price') }}
-          </label>
-          <input
-            :value="entry.input_price"
-            @input="emitField('input_price', ($event.target as HTMLInputElement).value)"
-            type="number"
-            step="any" min="0"
-            class="input mt-1 text-sm"
-            :placeholder="t('admin.channels.form.pricePlaceholder', 'Default')"
-          />
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.inputPrice', '输入') }}</label>
+          <input :value="entry.input_price" @input="emitField('input_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.pricePlaceholder', '默认')" />
         </div>
         <div>
-          <label class="text-xs text-gray-500 dark:text-gray-400">
-            {{ t('admin.channels.form.outputPrice', 'Output Price') }}
-          </label>
-          <input
-            :value="entry.output_price"
-            @input="emitField('output_price', ($event.target as HTMLInputElement).value)"
-            type="number"
-            step="any" min="0"
-            class="input mt-1 text-sm"
-            :placeholder="t('admin.channels.form.pricePlaceholder', 'Default')"
-          />
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.outputPrice', '输出') }}</label>
+          <input :value="entry.output_price" @input="emitField('output_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.pricePlaceholder', '默认')" />
         </div>
         <div>
-          <label class="text-xs text-gray-500 dark:text-gray-400">
-            {{ t('admin.channels.form.cacheWritePrice', 'Cache Write') }}
-          </label>
-          <input
-            :value="entry.cache_write_price"
-            @input="emitField('cache_write_price', ($event.target as HTMLInputElement).value)"
-            type="number"
-            step="any" min="0"
-            class="input mt-1 text-sm"
-            :placeholder="t('admin.channels.form.pricePlaceholder', 'Default')"
-          />
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheWritePrice', '缓存写入') }}</label>
+          <input :value="entry.cache_write_price" @input="emitField('cache_write_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.pricePlaceholder', '默认')" />
         </div>
         <div>
-          <label class="text-xs text-gray-500 dark:text-gray-400">
-            {{ t('admin.channels.form.cacheReadPrice', 'Cache Read') }}
-          </label>
-          <input
-            :value="entry.cache_read_price"
-            @input="emitField('cache_read_price', ($event.target as HTMLInputElement).value)"
-            type="number"
-            step="any" min="0"
-            class="input mt-1 text-sm"
-            :placeholder="t('admin.channels.form.pricePlaceholder', 'Default')"
-          />
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.cacheReadPrice', '缓存读取') }}</label>
+          <input :value="entry.cache_read_price" @input="emitField('cache_read_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.pricePlaceholder', '默认')" />
+        </div>
+        <div>
+          <label class="text-xs text-gray-400">{{ t('admin.channels.form.imageTokenPrice', '图片输出') }}</label>
+          <input :value="entry.image_output_price" @input="emitField('image_output_price', ($event.target as HTMLInputElement).value)"
+            type="number" step="any" min="0" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.pricePlaceholder', '默认')" />
         </div>
       </div>
 
@@ -96,10 +72,11 @@
       <div class="mt-3">
         <div class="flex items-center justify-between">
           <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
-            {{ t('admin.channels.form.intervals', 'Context Intervals (optional)') }}
+            {{ t('admin.channels.form.intervals', '上下文区间定价（可选）') }}
+            <span class="ml-1 font-normal text-gray-400">(min, max]</span>
           </label>
           <button type="button" @click="addInterval" class="text-xs text-primary-600 hover:text-primary-700">
-            + {{ t('admin.channels.form.addInterval', 'Add Interval') }}
+            + {{ t('admin.channels.form.addInterval', '添加区间') }}
           </button>
         </div>
         <div v-if="entry.intervals && entry.intervals.length > 0" class="mt-2 space-y-2">
@@ -115,14 +92,14 @@
       </div>
     </div>
 
-    <!-- Per-request mode: tiers -->
+    <!-- Per-request mode -->
     <div v-else-if="entry.billing_mode === 'per_request'">
       <div class="flex items-center justify-between">
         <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
-          {{ t('admin.channels.form.requestTiers', 'Request Tiers') }}
+          {{ t('admin.channels.form.requestTiers', '按次计费层级') }}
         </label>
         <button type="button" @click="addInterval" class="text-xs text-primary-600 hover:text-primary-700">
-          + {{ t('admin.channels.form.addTier', 'Add Tier') }}
+          + {{ t('admin.channels.form.addTier', '添加层级') }}
         </button>
       </div>
       <div v-if="entry.intervals && entry.intervals.length > 0" class="mt-2 space-y-2">
@@ -136,18 +113,18 @@
         />
       </div>
       <div v-else class="mt-2 rounded border border-dashed border-gray-300 p-3 text-center text-xs text-gray-400 dark:border-dark-500">
-        {{ t('admin.channels.form.noTiersYet', 'No tiers. Add one to configure per-request pricing.') }}
+        {{ t('admin.channels.form.noTiersYet', '暂无层级，点击添加配置按次计费价格') }}
       </div>
     </div>
 
-    <!-- Image mode: tiers -->
+    <!-- Image mode (legacy per-request) -->
     <div v-else-if="entry.billing_mode === 'image'">
       <div class="flex items-center justify-between">
         <label class="text-xs font-medium text-gray-500 dark:text-gray-400">
-          {{ t('admin.channels.form.imageTiers', 'Image Tiers') }}
+          {{ t('admin.channels.form.imageTiers', '图片计费层级（按次）') }}
         </label>
         <button type="button" @click="addImageTier" class="text-xs text-primary-600 hover:text-primary-700">
-          + {{ t('admin.channels.form.addTier', 'Add Tier') }}
+          + {{ t('admin.channels.form.addTier', '添加层级') }}
         </button>
       </div>
       <div v-if="entry.intervals && entry.intervals.length > 0" class="mt-2 space-y-2">
@@ -161,20 +138,11 @@
         />
       </div>
       <div v-else>
-        <!-- Legacy image_output_price fallback -->
         <div class="mt-2 grid grid-cols-2 gap-2 sm:grid-cols-4">
           <div>
-            <label class="text-xs text-gray-500 dark:text-gray-400">
-              {{ t('admin.channels.form.imageOutputPrice', 'Image Output Price') }}
-            </label>
-            <input
-              :value="entry.image_output_price"
-              @input="emitField('image_output_price', ($event.target as HTMLInputElement).value)"
-              type="number"
-              step="any" min="0"
-              class="input mt-1 text-sm"
-              :placeholder="t('admin.channels.form.pricePlaceholder', 'Default')"
-            />
+            <label class="text-xs text-gray-400">{{ t('admin.channels.form.imageOutputPrice', '图片输出价格') }}</label>
+            <input :value="entry.image_output_price" @input="emitField('image_output_price', ($event.target as HTMLInputElement).value)"
+              type="number" step="any" min="0" class="input mt-0.5 text-sm" :placeholder="t('admin.channels.form.pricePlaceholder', '默认')" />
           </div>
         </div>
       </div>
@@ -188,6 +156,7 @@ import { useI18n } from 'vue-i18n'
 import Select from '@/components/common/Select.vue'
 import Icon from '@/components/icons/Icon.vue'
 import IntervalRow from './IntervalRow.vue'
+import ModelTagInput from './ModelTagInput.vue'
 import type { PricingFormEntry, IntervalFormEntry } from './types'
 import type { BillingMode } from '@/api/admin/channels'
 
@@ -203,9 +172,9 @@ const emit = defineEmits<{
 }>()
 
 const billingModeOptions = computed(() => [
-  { value: 'token', label: t('admin.channels.billingMode.token', 'Token') },
-  { value: 'per_request', label: t('admin.channels.billingMode.perRequest', 'Per Request') },
-  { value: 'image', label: t('admin.channels.billingMode.image', 'Image') }
+  { value: 'token', label: 'Token' },
+  { value: 'per_request', label: t('admin.channels.billingMode.perRequest', '按次') },
+  { value: 'image', label: t('admin.channels.billingMode.image', '图片（按次）') }
 ])
 
 function emitField(field: keyof PricingFormEntry, value: string) {
@@ -215,14 +184,9 @@ function emitField(field: keyof PricingFormEntry, value: string) {
 function addInterval() {
   const intervals = [...(props.entry.intervals || [])]
   intervals.push({
-    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,
+    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,
     sort_order: intervals.length
   })
   emit('update', { ...props.entry, intervals })
@@ -231,16 +195,10 @@ function addInterval() {
 function addImageTier() {
   const intervals = [...(props.entry.intervals || [])]
   const labels = ['1K', '2K', '4K', 'HD']
-  const nextLabel = labels[intervals.length] || ''
   intervals.push({
-    min_tokens: 0,
-    max_tokens: null,
-    tier_label: nextLabel,
-    input_price: null,
-    output_price: null,
-    cache_write_price: null,
-    cache_read_price: null,
-    per_request_price: null,
+    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,
     sort_order: intervals.length
   })
   emit('update', { ...props.entry, intervals })

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

@@ -13,32 +13,46 @@ export interface IntervalFormEntry {
 }
 
 export interface PricingFormEntry {
-  modelsInput: string
+  models: string[]
   billing_mode: BillingMode
   input_price: number | string | null
   output_price: number | string | null
   cache_write_price: number | string | null
   cache_read_price: number | string | null
-  per_request_price: number | string | null
   image_output_price: number | string | null
   intervals: IntervalFormEntry[]
 }
 
+// 价格转换：后端存 per-token，前端显示 per-MTok ($/1M tokens)
+const MTOK = 1_000_000
+
 export function toNullableNumber(val: number | string | null | undefined): number | null {
   if (val === null || val === undefined || val === '') return null
   const num = Number(val)
   return isNaN(num) ? null : num
 }
 
+/** 前端显示值($/MTok) → 后端存储值(per-token) */
+export function mTokToPerToken(val: number | string | null | undefined): number | null {
+  const num = toNullableNumber(val)
+  return num === null ? null : num / MTOK
+}
+
+/** 后端存储值(per-token) → 前端显示值($/MTok) */
+export function perTokenToMTok(val: number | null | undefined): number | null {
+  if (val === null || val === undefined) return null
+  return val * MTOK
+}
+
 export function apiIntervalsToForm(intervals: PricingInterval[]): IntervalFormEntry[] {
   return (intervals || []).map(iv => ({
     min_tokens: iv.min_tokens,
     max_tokens: iv.max_tokens,
     tier_label: iv.tier_label || '',
-    input_price: iv.input_price,
-    output_price: iv.output_price,
-    cache_write_price: iv.cache_write_price,
-    cache_read_price: iv.cache_read_price,
+    input_price: perTokenToMTok(iv.input_price),
+    output_price: perTokenToMTok(iv.output_price),
+    cache_write_price: perTokenToMTok(iv.cache_write_price),
+    cache_read_price: perTokenToMTok(iv.cache_read_price),
     per_request_price: iv.per_request_price,
     sort_order: iv.sort_order
   }))
@@ -49,10 +63,10 @@ export function formIntervalsToAPI(intervals: IntervalFormEntry[]): PricingInter
     min_tokens: iv.min_tokens,
     max_tokens: iv.max_tokens,
     tier_label: iv.tier_label,
-    input_price: toNullableNumber(iv.input_price),
-    output_price: toNullableNumber(iv.output_price),
-    cache_write_price: toNullableNumber(iv.cache_write_price),
-    cache_read_price: toNullableNumber(iv.cache_read_price),
+    input_price: mTokToPerToken(iv.input_price),
+    output_price: mTokToPerToken(iv.output_price),
+    cache_write_price: mTokToPerToken(iv.cache_write_price),
+    cache_read_price: mTokToPerToken(iv.cache_read_price),
     per_request_price: toNullableNumber(iv.per_request_price),
     sort_order: iv.sort_order
   }))

frontend/src/i18n/locales/en.ts

@@ -335,6 +335,7 @@ export default {
     profile: 'Profile',
     users: 'Users',
     groups: 'Groups',
+    channels: 'Channels',
     subscriptions: 'Subscriptions',
     accounts: 'Accounts',
     proxies: 'Proxies',
@@ -1719,6 +1720,79 @@ export default {
       }
     },
 
+    // Channel Management
+    channels: {
+      title: 'Channel Management',
+      description: 'Manage channels and custom model pricing',
+      searchChannels: 'Search channels...',
+      createChannel: 'Create Channel',
+      editChannel: 'Edit Channel',
+      deleteChannel: 'Delete Channel',
+      statusActive: 'Active',
+      statusDisabled: 'Disabled',
+      allStatus: 'All Status',
+      groupsUnit: 'groups',
+      pricingUnit: 'pricing rules',
+      noChannelsYet: 'No Channels Yet',
+      createFirstChannel: 'Create your first channel to manage model pricing',
+      loadError: 'Failed to load channels',
+      createSuccess: 'Channel created',
+      updateSuccess: 'Channel updated',
+      deleteSuccess: 'Channel deleted',
+      createError: 'Failed to create channel',
+      updateError: 'Failed to update channel',
+      deleteError: 'Failed to delete channel',
+      nameRequired: 'Please enter a channel name',
+      deleteConfirm: 'Are you sure you want to delete channel "{name}"? This cannot be undone.',
+      columns: {
+        name: 'Name',
+        description: 'Description',
+        status: 'Status',
+        groups: 'Groups',
+        pricing: 'Pricing',
+        createdAt: 'Created',
+        actions: 'Actions'
+      },
+      billingMode: {
+        token: 'Token',
+        perRequest: 'Per Request',
+        image: 'Image (Per Request)'
+      },
+      form: {
+        name: 'Name',
+        namePlaceholder: 'Enter channel name',
+        description: 'Description',
+        descriptionPlaceholder: 'Optional description',
+        status: 'Status',
+        groups: 'Associated Groups',
+        noGroupsAvailable: 'No groups available',
+        inOtherChannel: 'In "{name}"',
+        modelPricing: 'Model Pricing',
+        models: 'Models',
+        modelsPlaceholder: 'Type model name and press Enter. Supports wildcard *',
+        modelInputHint: 'Press Enter to add. Supports paste and wildcard *.',
+        billingMode: 'Billing Mode',
+        defaultPrices: 'Default prices (fallback when no interval matches)',
+        inputPrice: 'Input',
+        outputPrice: 'Output',
+        cacheWritePrice: 'Cache Write',
+        cacheReadPrice: 'Cache Read',
+        imageTokenPrice: 'Image Output',
+        imageOutputPrice: 'Image Output Price',
+        pricePlaceholder: 'Default',
+        intervals: 'Context Intervals (optional)',
+        addInterval: 'Add Interval',
+        requestTiers: 'Request Tiers',
+        imageTiers: 'Image Tiers (Per Request)',
+        addTier: 'Add Tier',
+        noTiersYet: 'No tiers yet. Click add to configure per-request pricing.',
+        noPricingRules: 'No pricing rules yet. Click "Add" to create one.',
+        perRequestPrice: 'Price per Request',
+        tierLabel: 'Tier',
+        resolution: 'Resolution'
+      }
+    },
+
     // Subscriptions
     subscriptions: {
       title: 'Subscription Management',

frontend/src/i18n/locales/zh.ts

@@ -335,6 +335,7 @@ export default {
     profile: '个人资料',
     users: '用户管理',
     groups: '分组管理',
+    channels: '渠道管理',
     subscriptions: '订阅管理',
     accounts: '账号管理',
     proxies: 'IP管理',
@@ -1799,6 +1800,79 @@ export default {
       }
     },
 
+    // Channel Management
+    channels: {
+      title: '渠道管理',
+      description: '管理渠道和自定义模型定价',
+      searchChannels: '搜索渠道...',
+      createChannel: '创建渠道',
+      editChannel: '编辑渠道',
+      deleteChannel: '删除渠道',
+      statusActive: '启用',
+      statusDisabled: '停用',
+      allStatus: '全部状态',
+      groupsUnit: '个分组',
+      pricingUnit: '条定价',
+      noChannelsYet: '暂无渠道',
+      createFirstChannel: '创建第一个渠道来管理模型定价',
+      loadError: '加载渠道列表失败',
+      createSuccess: '渠道创建成功',
+      updateSuccess: '渠道更新成功',
+      deleteSuccess: '渠道删除成功',
+      createError: '创建渠道失败',
+      updateError: '更新渠道失败',
+      deleteError: '删除渠道失败',
+      nameRequired: '请输入渠道名称',
+      deleteConfirm: '确定要删除渠道「{name}」吗？此操作不可撤销。',
+      columns: {
+        name: '名称',
+        description: '描述',
+        status: '状态',
+        groups: '分组',
+        pricing: '定价',
+        createdAt: '创建时间',
+        actions: '操作'
+      },
+      billingMode: {
+        token: 'Token',
+        perRequest: '按次',
+        image: '图片（按次）'
+      },
+      form: {
+        name: '名称',
+        namePlaceholder: '输入渠道名称',
+        description: '描述',
+        descriptionPlaceholder: '可选描述',
+        status: '状态',
+        groups: '关联分组',
+        noGroupsAvailable: '暂无可用分组',
+        inOtherChannel: '已属于「{name}」',
+        modelPricing: '模型定价',
+        models: '模型列表',
+        modelsPlaceholder: '输入模型名后按回车添加，支持通配符 *',
+        modelInputHint: '按回车添加，支持粘贴批量导入，支持通配符 *',
+        billingMode: '计费模式',
+        defaultPrices: '默认价格（未命中区间时使用）',
+        inputPrice: '输入',
+        outputPrice: '输出',
+        cacheWritePrice: '缓存写入',
+        cacheReadPrice: '缓存读取',
+        imageTokenPrice: '图片输出',
+        imageOutputPrice: '图片输出价格',
+        pricePlaceholder: '默认',
+        intervals: '上下文区间定价（可选）',
+        addInterval: '添加区间',
+        requestTiers: '按次计费层级',
+        imageTiers: '图片计费层级（按次）',
+        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',
+        perRequestPrice: '单次价格',
+        tierLabel: '层级',
+        resolution: '分辨率'
+      }
+    },
+
     // Subscriptions Management
     subscriptions: {
       title: '订阅管理',

frontend/src/views/admin/ChannelsView.vue

@@ -287,7 +287,7 @@ import { useAppStore } from '@/stores/app'
 import { adminAPI } from '@/api/admin'
 import type { Channel, ChannelModelPricing, CreateChannelRequest, UpdateChannelRequest } from '@/api/admin/channels'
 import type { PricingFormEntry } from '@/components/admin/channel/types'
-import { toNullableNumber, apiIntervalsToForm, formIntervalsToAPI } from '@/components/admin/channel/types'
+import { mTokToPerToken, perTokenToMTok, apiIntervalsToForm, formIntervalsToAPI } from '@/components/admin/channel/types'
 import type { AdminGroup } from '@/types'
 import type { Column } from '@/components/common/types'
 import AppLayout from '@/components/layout/AppLayout.vue'
@@ -412,13 +412,12 @@ function toggleGroup(groupId: number) {
 // ── Pricing helpers ──
 function addPricingEntry() {
   form.model_pricing.push({
-    modelsInput: '',
+    models: [],
     billing_mode: 'token',
     input_price: null,
     output_price: null,
     cache_write_price: null,
     cache_read_price: null,
-    per_request_price: null,
     image_output_price: null,
     intervals: []
   })
@@ -434,29 +433,28 @@ function removePricingEntry(idx: number) {
 
 function formPricingToAPI(): ChannelModelPricing[] {
   return form.model_pricing
-    .filter(e => e.modelsInput.trim())
+    .filter(e => e.models.length > 0)
     .map(e => ({
-      models: e.modelsInput.split(',').map(m => m.trim()).filter(Boolean),
+      models: e.models,
       billing_mode: e.billing_mode,
-      input_price: toNullableNumber(e.input_price),
-      output_price: toNullableNumber(e.output_price),
-      cache_write_price: toNullableNumber(e.cache_write_price),
-      cache_read_price: toNullableNumber(e.cache_read_price),
-      image_output_price: toNullableNumber(e.image_output_price),
+      input_price: mTokToPerToken(e.input_price),
+      output_price: mTokToPerToken(e.output_price),
+      cache_write_price: mTokToPerToken(e.cache_write_price),
+      cache_read_price: mTokToPerToken(e.cache_read_price),
+      image_output_price: mTokToPerToken(e.image_output_price),
       intervals: formIntervalsToAPI(e.intervals || [])
     }))
 }
 
 function apiPricingToForm(pricing: ChannelModelPricing[]): PricingFormEntry[] {
   return pricing.map(p => ({
-    modelsInput: p.models.join(', '),
+    models: p.models || [],
     billing_mode: p.billing_mode,
-    input_price: p.input_price,
-    output_price: p.output_price,
-    cache_write_price: p.cache_write_price,
-    cache_read_price: p.cache_read_price,
-    per_request_price: null,
-    image_output_price: p.image_output_price,
+    input_price: perTokenToMTok(p.input_price),
+    output_price: perTokenToMTok(p.output_price),
+    cache_write_price: perTokenToMTok(p.cache_write_price),
+    cache_read_price: perTokenToMTok(p.cache_read_price),
+    image_output_price: perTokenToMTok(p.image_output_price),
     intervals: apiIntervalsToForm(p.intervals || [])
   }))
 }