feat: Beta策略支持按模型区分处理（模型白名单）

backend/internal/handler/dto/settings.go

@@ -161,6 +161,9 @@ type BetaPolicyRule struct {
 	Action               string   `json:"action"`
 	Scope                string   `json:"scope"`
 	ErrorMessage         string   `json:"error_message,omitempty"`
+	ModelWhitelist       []string `json:"model_whitelist,omitempty"`
+	FallbackAction       string   `json:"fallback_action,omitempty"`
+	FallbackErrorMessage string   `json:"fallback_error_message,omitempty"`
 }
 
 // BetaPolicySettings Beta 策略配置 DTO

backend/internal/service/gateway_service.go

@@ -3946,7 +3946,7 @@ func (s *GatewayService) Forward(ctx context.Context, c *gin.Context, account *A
 	// Beta policy: evaluate once; block check + cache filter set for buildUpstreamRequest.
 	// Always overwrite the cache to prevent stale values from a previous retry with a different account.
 	if account.Platform == PlatformAnthropic && c != nil {
-		policy := s.evaluateBetaPolicy(ctx, c.GetHeader("anthropic-beta"), account)
+		policy := s.evaluateBetaPolicy(ctx, c.GetHeader("anthropic-beta"), account, parsed.Model)
 		if policy.blockErr != nil {
 			return nil, policy.blockErr
 		}
@@ -5603,7 +5603,7 @@ func (s *GatewayService) buildUpstreamRequest(ctx context.Context, c *gin.Contex
 	}
 
 	// Build effective drop set: merge static defaults with dynamic beta policy filter rules
-	policyFilterSet := s.getBetaPolicyFilterSet(ctx, c, account)
+	policyFilterSet := s.getBetaPolicyFilterSet(ctx, c, account, modelID)
 	effectiveDropSet := mergeDropSets(policyFilterSet)
 	effectiveDropWithClaudeCodeSet := mergeDropSets(policyFilterSet, claude.BetaClaudeCode)
 
@@ -5843,7 +5843,7 @@ type betaPolicyResult struct {
 }
 
 // evaluateBetaPolicy loads settings once and evaluates all rules against the given request.
-func (s *GatewayService) evaluateBetaPolicy(ctx context.Context, betaHeader string, account *Account) betaPolicyResult {
+func (s *GatewayService) evaluateBetaPolicy(ctx context.Context, betaHeader string, account *Account, model string) betaPolicyResult {
 	if s.settingService == nil {
 		return betaPolicyResult{}
 	}
@@ -5858,10 +5858,11 @@ func (s *GatewayService) evaluateBetaPolicy(ctx context.Context, betaHeader stri
 		if !betaPolicyScopeMatches(rule.Scope, isOAuth, isBedrock) {
 			continue
 		}
-		switch rule.Action {
+		effectiveAction, effectiveErrMsg := resolveRuleAction(rule, model)
+		switch effectiveAction {
 		case BetaPolicyActionBlock:
 			if result.blockErr == nil && betaHeader != "" && containsBetaToken(betaHeader, rule.BetaToken) {
-				msg := rule.ErrorMessage
+				msg := effectiveErrMsg
 				if msg == "" {
 					msg = "beta feature " + rule.BetaToken + " is not allowed"
 				}
@@ -5903,7 +5904,7 @@ const betaPolicyFilterSetKey = "betaPolicyFilterSet"
 // In the /v1/messages path, Forward() evaluates the policy first and caches the result;
 // buildUpstreamRequest reuses it (zero extra DB calls). In the count_tokens path, this
 // evaluates on demand (one DB call).
-func (s *GatewayService) getBetaPolicyFilterSet(ctx context.Context, c *gin.Context, account *Account) map[string]struct{} {
+func (s *GatewayService) getBetaPolicyFilterSet(ctx context.Context, c *gin.Context, account *Account, model string) map[string]struct{} {
 	if c != nil {
 		if v, ok := c.Get(betaPolicyFilterSetKey); ok {
 			if fs, ok := v.(map[string]struct{}); ok {
@@ -5911,7 +5912,7 @@ func (s *GatewayService) getBetaPolicyFilterSet(ctx context.Context, c *gin.Cont
 			}
 		}
 	}
-	return s.evaluateBetaPolicy(ctx, "", account).filterSet
+	return s.evaluateBetaPolicy(ctx, "", account, model).filterSet
 }
 
 // betaPolicyScopeMatches checks whether a rule's scope matches the current account type.
@@ -5930,6 +5931,33 @@ func betaPolicyScopeMatches(scope string, isOAuth bool, isBedrock bool) bool {
 	}
 }
 
+// matchModelWhitelist checks if a model matches any pattern in the whitelist.
+// Reuses matchModelPattern from group.go which supports exact and wildcard prefix matching.
+func matchModelWhitelist(model string, whitelist []string) bool {
+	for _, pattern := range whitelist {
+		if matchModelPattern(pattern, model) {
+			return true
+		}
+	}
+	return false
+}
+
+// resolveRuleAction determines the effective action and error message for a rule given the request model.
+// When ModelWhitelist is empty, the rule's primary Action/ErrorMessage applies unconditionally.
+// When non-empty, Action applies to matching models; FallbackAction/FallbackErrorMessage applies to others.
+func resolveRuleAction(rule BetaPolicyRule, model string) (action, errorMessage string) {
+	if len(rule.ModelWhitelist) == 0 {
+		return rule.Action, rule.ErrorMessage
+	}
+	if matchModelWhitelist(model, rule.ModelWhitelist) {
+		return rule.Action, rule.ErrorMessage
+	}
+	if rule.FallbackAction != "" {
+		return rule.FallbackAction, rule.FallbackErrorMessage
+	}
+	return BetaPolicyActionPass, "" // default fallback: pass (fail-open)
+}
+
 // droppedBetaSet returns claude.DroppedBetas as a set, with optional extra tokens.
 func droppedBetaSet(extra ...string) map[string]struct{} {
 	m := make(map[string]struct{}, len(defaultDroppedBetasSet)+len(extra))
@@ -5976,7 +6004,7 @@ func (s *GatewayService) resolveBedrockBetaTokensForRequest(
 	modelID string,
 ) ([]string, error) {
 	// 1. 对原始 header 中的 beta token 做 block 检查（快速失败）
-	policy := s.evaluateBetaPolicy(ctx, betaHeader, account)
+	policy := s.evaluateBetaPolicy(ctx, betaHeader, account, modelID)
 	if policy.blockErr != nil {
 		return nil, policy.blockErr
 	}
@@ -5988,7 +6016,7 @@ func (s *GatewayService) resolveBedrockBetaTokensForRequest(
 	//    例如：管理员 block 了 interleaved-thinking，客户端不在 header 中带该 token，
 	//    但请求体中包含 thinking 字段 → autoInjectBedrockBetaTokens 会自动补齐 →
 	//    如果不做此检查，block 规则会被绕过。
-	if blockErr := s.checkBetaPolicyBlockForTokens(ctx, betaTokens, account); blockErr != nil {
+	if blockErr := s.checkBetaPolicyBlockForTokens(ctx, betaTokens, account, modelID); blockErr != nil {
 		return nil, blockErr
 	}
 
@@ -5997,7 +6025,7 @@ func (s *GatewayService) resolveBedrockBetaTokensForRequest(
 
 // checkBetaPolicyBlockForTokens 检查 token 列表中是否有被管理员 block 规则命中的 token。
 // 用于补充 evaluateBetaPolicy 对 header 的检查，覆盖 body 自动注入的 token。
-func (s *GatewayService) checkBetaPolicyBlockForTokens(ctx context.Context, tokens []string, account *Account) *BetaBlockedError {
+func (s *GatewayService) checkBetaPolicyBlockForTokens(ctx context.Context, tokens []string, account *Account, model string) *BetaBlockedError {
 	if s.settingService == nil || len(tokens) == 0 {
 		return nil
 	}
@@ -6009,14 +6037,15 @@ func (s *GatewayService) checkBetaPolicyBlockForTokens(ctx context.Context, toke
 	isBedrock := account.IsBedrock()
 	tokenSet := buildBetaTokenSet(tokens)
 	for _, rule := range settings.Rules {
-		if rule.Action != BetaPolicyActionBlock {
+		effectiveAction, effectiveErrMsg := resolveRuleAction(rule, model)
+		if effectiveAction != BetaPolicyActionBlock {
 			continue
 		}
 		if !betaPolicyScopeMatches(rule.Scope, isOAuth, isBedrock) {
 			continue
 		}
 		if _, present := tokenSet[rule.BetaToken]; present {
-			msg := rule.ErrorMessage
+			msg := effectiveErrMsg
 			if msg == "" {
 				msg = "beta feature " + rule.BetaToken + " is not allowed"
 			}
@@ -8474,7 +8503,7 @@ func (s *GatewayService) buildCountTokensRequest(ctx context.Context, c *gin.Con
 	}
 
 	// Build effective drop set for count_tokens: merge static defaults with dynamic beta policy filter rules
-	ctEffectiveDropSet := mergeDropSets(s.getBetaPolicyFilterSet(ctx, c, account))
+	ctEffectiveDropSet := mergeDropSets(s.getBetaPolicyFilterSet(ctx, c, account, modelID))
 
 	// OAuth 账号：处理 anthropic-beta header
 	if tokenType == "oauth" {

backend/internal/service/setting_service.go

@@ -1527,6 +1527,18 @@ func (s *SettingService) SetBetaPolicySettings(ctx context.Context, settings *Be
 		if !validScopes[rule.Scope] {
 			return fmt.Errorf("rule[%d]: invalid scope %q", i, rule.Scope)
 		}
+		// Validate model_whitelist patterns
+		for j, pattern := range rule.ModelWhitelist {
+			trimmed := strings.TrimSpace(pattern)
+			if trimmed == "" {
+				return fmt.Errorf("rule[%d]: model_whitelist[%d] cannot be empty", i, j)
+			}
+			settings.Rules[i].ModelWhitelist[j] = trimmed
+		}
+		// Validate fallback_action
+		if rule.FallbackAction != "" && !validActions[rule.FallbackAction] {
+			return fmt.Errorf("rule[%d]: invalid fallback_action %q", i, rule.FallbackAction)
+		}
 	}
 
 	data, err := json.Marshal(settings)

backend/internal/service/settings_view.go

@@ -182,6 +182,9 @@ type BetaPolicyRule struct {
 	Action               string   `json:"action"`                           // "pass" | "filter" | "block"
 	Scope                string   `json:"scope"`                            // "all" | "oauth" | "apikey" | "bedrock"
 	ErrorMessage         string   `json:"error_message,omitempty"`          // 自定义错误消息 (action=block 时生效)
+	ModelWhitelist       []string `json:"model_whitelist,omitempty"`        // 模型匹配模式列表（为空=对所有模型生效）
+	FallbackAction       string   `json:"fallback_action,omitempty"`        // 未匹配白名单的模型的处理方式
+	FallbackErrorMessage string   `json:"fallback_error_message,omitempty"` // 未匹配白名单时的自定义错误消息 (fallback_action=block 时生效)
 }
 
 // BetaPolicySettings Beta 策略配置

frontend/src/api/admin/settings.ts

@@ -359,6 +359,9 @@ export interface BetaPolicyRule {
   action: 'pass' | 'filter' | 'block'
   scope: 'all' | 'oauth' | 'apikey' | 'bedrock'
   error_message?: string
+  model_whitelist?: string[]
+  fallback_action?: 'pass' | 'filter' | 'block'
+  fallback_error_message?: string
 }
 
 /**

frontend/src/i18n/locales/en.ts

@@ -4623,7 +4623,19 @@ export default {
         errorMessagePlaceholder: 'Custom error message when blocked',
         errorMessageHint: 'Leave empty for default message',
         saved: 'Beta policy settings saved',
-        saveFailed: 'Failed to save beta policy settings'
+        saveFailed: 'Failed to save beta policy settings',
+        modelWhitelist: 'Model Whitelist',
+        modelWhitelistHint: 'Leave empty to apply to all models. Supports exact match and wildcard prefix (e.g., claude-opus-*)',
+        modelPatternPlaceholder: 'e.g., claude-opus-* or claude-opus-4-6',
+        addModelPattern: 'Add model pattern',
+        removePattern: 'Remove',
+        fallbackAction: 'Fallback Action',
+        fallbackActionHint: 'Action for models not matching the whitelist',
+        fallbackErrorMessagePlaceholder: 'Custom error message when non-whitelisted models are blocked',
+        quickPresets: 'Quick Presets',
+        presetOpusOnly: 'Opus only for 1M',
+        presetOpusOnlyDesc: 'Pass for Opus, filter others',
+        commonPatterns: 'Common patterns'
       },
       saveSettings: 'Save Settings',
       saving: 'Saving...',

frontend/src/i18n/locales/zh.ts

@@ -4787,7 +4787,19 @@ export default {
         errorMessagePlaceholder: '拦截时返回的自定义错误消息',
         errorMessageHint: '留空则使用默认错误消息',
         saved: 'Beta 策略设置保存成功',
-        saveFailed: '保存 Beta 策略设置失败'
+        saveFailed: '保存 Beta 策略设置失败',
+        modelWhitelist: '模型白名单',
+        modelWhitelistHint: '留空则对所有模型生效。支持精确匹配和通配符前缀（如 claude-opus-*）',
+        modelPatternPlaceholder: '例如: claude-opus-* 或 claude-opus-4-6',
+        addModelPattern: '添加模型规则',
+        removePattern: '移除',
+        fallbackAction: '未匹配模型处理方式',
+        fallbackActionHint: '当请求模型不在白名单中时的处理方式',
+        fallbackErrorMessagePlaceholder: '未匹配模型被拦截时返回的自定义错误消息',
+        quickPresets: '快捷预设',
+        presetOpusOnly: '仅 Opus 允许 1M',
+        presetOpusOnlyDesc: 'Opus 透传，其他模型过滤',
+        commonPatterns: '常用模式'
       },
       saveSettings: '保存设置',
       saving: '保存中...',

frontend/src/views/admin/SettingsView.vue

@@ -630,6 +630,108 @@
                     {{ t('admin.settings.betaPolicy.errorMessageHint') }}
                   </p>
                 </div>
+
+                <!-- Quick Presets (only for tokens with presets) -->
+                <div v-if="betaPresets[rule.beta_token]?.length" class="mt-3">
+                  <label class="mb-1 block text-xs font-medium text-gray-600 dark:text-gray-400">
+                    {{ t('admin.settings.betaPolicy.quickPresets') }}
+                  </label>
+                  <div class="flex flex-wrap gap-2">
+                    <button
+                      v-for="preset in betaPresets[rule.beta_token]"
+                      :key="preset.label"
+                      type="button"
+                      class="inline-flex items-center gap-1 rounded-md border border-primary-200 bg-primary-50 px-2.5 py-1 text-xs font-medium text-primary-700 transition-colors hover:bg-primary-100 dark:border-primary-800 dark:bg-primary-900/30 dark:text-primary-300 dark:hover:bg-primary-900/50"
+                      @click="applyBetaPreset(rule, preset)"
+                      :title="preset.description"
+                    >
+                      {{ preset.label }}
+                    </button>
+                  </div>
+                </div>
+
+                <!-- Model Whitelist -->
+                <div class="mt-3">
+                  <label class="mb-1 block text-xs font-medium text-gray-600 dark:text-gray-400">
+                    {{ t('admin.settings.betaPolicy.modelWhitelist') }}
+                  </label>
+                  <p class="mb-2 text-xs text-gray-400 dark:text-gray-500">
+                    {{ t('admin.settings.betaPolicy.modelWhitelistHint') }}
+                  </p>
+                  <!-- Existing patterns -->
+                  <div
+                    v-for="(_, index) in (rule.model_whitelist || [])"
+                    :key="index"
+                    class="mb-1.5 flex items-center gap-2"
+                  >
+                    <input
+                      v-model="rule.model_whitelist![index]"
+                      type="text"
+                      class="input input-sm flex-1"
+                      :placeholder="t('admin.settings.betaPolicy.modelPatternPlaceholder')"
+                    />
+                    <button
+                      type="button"
+                      @click="rule.model_whitelist!.splice(index, 1)"
+                      class="shrink-0 rounded p-1 text-red-400 transition-colors hover:bg-red-50 hover:text-red-600 dark:hover:bg-red-900/20"
+                    >
+                      <svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                        <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+                      </svg>
+                    </button>
+                  </div>
+                  <!-- Add pattern button -->
+                  <button
+                    type="button"
+                    @click="if (!rule.model_whitelist) rule.model_whitelist = []; rule.model_whitelist.push('')"
+                    class="mb-2 inline-flex items-center gap-1 text-xs text-primary-600 transition-colors hover:text-primary-700 dark:text-primary-400 dark:hover:text-primary-300"
+                  >
+                    <svg class="h-3.5 w-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                      <path stroke-linecap="round" stroke-linejoin="round" d="M12 4v16m8-8H4" />
+                    </svg>
+                    {{ t('admin.settings.betaPolicy.addModelPattern') }}
+                  </button>
+                  <!-- Common pattern chips -->
+                  <div class="flex flex-wrap items-center gap-1.5">
+                    <span class="text-xs text-gray-400 dark:text-gray-500">{{ t('admin.settings.betaPolicy.commonPatterns') }}:</span>
+                    <button
+                      v-for="pattern in commonModelPatterns"
+                      :key="pattern"
+                      type="button"
+                      class="rounded border border-gray-200 px-2 py-0.5 text-xs text-gray-600 transition-colors hover:border-primary-300 hover:bg-primary-50 hover:text-primary-700 dark:border-dark-600 dark:text-gray-400 dark:hover:border-primary-700 dark:hover:bg-primary-900/30 dark:hover:text-primary-300"
+                      @click="addQuickPattern(rule, pattern)"
+                    >
+                      {{ pattern }}
+                    </button>
+                  </div>
+                </div>
+
+                <!-- Fallback Action (only when model_whitelist is non-empty) -->
+                <div v-if="rule.model_whitelist && rule.model_whitelist.length > 0" class="mt-3">
+                  <label class="mb-1 block text-xs font-medium text-gray-600 dark:text-gray-400">
+                    {{ t('admin.settings.betaPolicy.fallbackAction') }}
+                  </label>
+                  <Select
+                    :modelValue="rule.fallback_action || 'pass'"
+                    @update:modelValue="rule.fallback_action = $event as any"
+                    :options="betaPolicyActionOptions"
+                  />
+                  <p class="mt-1 text-xs text-gray-400 dark:text-gray-500">
+                    {{ t('admin.settings.betaPolicy.fallbackActionHint') }}
+                  </p>
+                  <!-- Fallback Error Message (only when fallback_action=block) -->
+                  <div v-if="rule.fallback_action === 'block'" class="mt-2">
+                    <input
+                      v-model="rule.fallback_error_message"
+                      type="text"
+                      class="input"
+                      :placeholder="t('admin.settings.betaPolicy.fallbackErrorMessagePlaceholder')"
+                    />
+                    <p class="mt-1 text-xs text-gray-400 dark:text-gray-500">
+                      {{ t('admin.settings.betaPolicy.errorMessageHint') }}
+                    </p>
+                  </div>
+                </div>
               </div>
 
               <!-- Save Button -->
@@ -2058,6 +2160,9 @@ const betaPolicyForm = reactive({
     action: 'pass' | 'filter' | 'block'
     scope: 'all' | 'oauth' | 'apikey' | 'bedrock'
     error_message?: string
+    model_whitelist?: string[]
+    fallback_action?: 'pass' | 'filter' | 'block'
+    fallback_error_message?: string
   }>
 })
 
@@ -2716,10 +2821,48 @@ const betaDisplayNames: Record<string, string> = {
   'context-1m-2025-08-07': 'Context 1M'
 }
 
+// 快捷预设：按 beta_token 定义预设方案
+const betaPresets: Record<string, Array<{
+  label: string
+  description: string
+  action: 'pass' | 'filter' | 'block'
+  model_whitelist: string[]
+  fallback_action: 'pass' | 'filter' | 'block'
+}>> = {
+  'context-1m-2025-08-07': [
+    {
+      label: t('admin.settings.betaPolicy.presetOpusOnly'),
+      description: t('admin.settings.betaPolicy.presetOpusOnlyDesc'),
+      action: 'pass',
+      model_whitelist: ['claude-opus-4-6'],
+      fallback_action: 'filter',
+    },
+  ],
+}
+
+// 常用模型模式（具体 ID + 通配符示例）
+const commonModelPatterns = ['claude-opus-4-6', 'claude-sonnet-4-6', 'claude-opus-*', 'claude-sonnet-*']
+
 function getBetaDisplayName(token: string): string {
   return betaDisplayNames[token] || token
 }
 
+function applyBetaPreset(
+  rule: (typeof betaPolicyForm.rules)[number],
+  preset: { action: 'pass' | 'filter' | 'block'; model_whitelist: string[]; fallback_action: 'pass' | 'filter' | 'block' }
+) {
+  rule.action = preset.action
+  rule.model_whitelist = [...preset.model_whitelist]
+  rule.fallback_action = preset.fallback_action
+}
+
+function addQuickPattern(rule: (typeof betaPolicyForm.rules)[number], pattern: string) {
+  if (!rule.model_whitelist) rule.model_whitelist = []
+  if (!rule.model_whitelist.includes(pattern)) {
+    rule.model_whitelist.push(pattern)
+  }
+}
+
 async function loadBetaPolicySettings() {
   betaPolicyLoading.value = true
   try {
@@ -2735,8 +2878,22 @@ async function loadBetaPolicySettings() {
 async function saveBetaPolicySettings() {
   betaPolicySaving.value = true
   try {
+    // Clean up empty patterns before saving
+    const cleanedRules = betaPolicyForm.rules.map(rule => {
+      const whitelist = rule.model_whitelist?.filter(p => p.trim() !== '')
+      const hasWhitelist = whitelist && whitelist.length > 0
+      return {
+        beta_token: rule.beta_token,
+        action: rule.action,
+        scope: rule.scope,
+        error_message: rule.error_message,
+        model_whitelist: hasWhitelist ? whitelist : undefined,
+        fallback_action: hasWhitelist ? (rule.fallback_action || 'pass') : undefined,
+        fallback_error_message: hasWhitelist && rule.fallback_action === 'block' ? rule.fallback_error_message : undefined,
+      }
+    })
     const updated = await adminAPI.settings.updateBetaPolicySettings({
-      rules: betaPolicyForm.rules
+      rules: cleanedRules
     })
     betaPolicyForm.rules = updated.rules
     appStore.showSuccess(t('admin.settings.betaPolicy.saved'))