diff --git a/backend/internal/repository/scheduler_cache.go b/backend/internal/repository/scheduler_cache.go
index e9be8c7a..add0e501 100644
--- a/backend/internal/repository/scheduler_cache.go
+++ b/backend/internal/repository/scheduler_cache.go
@@ -426,6 +426,13 @@ func filterSchedulerExtra(extra map[string]any) map[string]any {
 		"window_cost_sticky_reserve",
 		"max_sessions",
 		"session_idle_timeout_minutes",
+		"openai_oauth_responses_websockets_v2_enabled",
+		"openai_oauth_responses_websockets_v2_mode",
+		"openai_apikey_responses_websockets_v2_enabled",
+		"openai_apikey_responses_websockets_v2_mode",
+		"responses_websockets_v2_enabled",
+		"openai_ws_enabled",
+		"openai_ws_force_http",
 	}
 	filtered := make(map[string]any)
 	for _, key := range keys {
diff --git a/backend/internal/repository/scheduler_cache_unit_test.go b/backend/internal/repository/scheduler_cache_unit_test.go
new file mode 100644
index 00000000..bcfd0e7a
--- /dev/null
+++ b/backend/internal/repository/scheduler_cache_unit_test.go
@@ -0,0 +1,33 @@
+//go:build unit
+
+package repository
+
+import (
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBuildSchedulerMetadataAccount_KeepsOpenAIWSFlags(t *testing.T) {
+	account := service.Account{
+		ID:       42,
+		Platform: service.PlatformOpenAI,
+		Type:     service.AccountTypeOAuth,
+		Extra: map[string]any{
+			"openai_oauth_responses_websockets_v2_enabled": true,
+			"openai_oauth_responses_websockets_v2_mode":    service.OpenAIWSIngressModePassthrough,
+			"openai_ws_force_http":                         true,
+			"mixed_scheduling":                             true,
+			"unused_large_field":                           "drop-me",
+		},
+	}
+
+	got := buildSchedulerMetadataAccount(account)
+
+	require.Equal(t, true, got.Extra["openai_oauth_responses_websockets_v2_enabled"])
+	require.Equal(t, service.OpenAIWSIngressModePassthrough, got.Extra["openai_oauth_responses_websockets_v2_mode"])
+	require.Equal(t, true, got.Extra["openai_ws_force_http"])
+	require.Equal(t, true, got.Extra["mixed_scheduling"])
+	require.Nil(t, got.Extra["unused_large_field"])
+}
diff --git a/backend/internal/service/openai_account_scheduler_ws_snapshot_test.go b/backend/internal/service/openai_account_scheduler_ws_snapshot_test.go
new file mode 100644
index 00000000..c5de8203
--- /dev/null
+++ b/backend/internal/service/openai_account_scheduler_ws_snapshot_test.go
@@ -0,0 +1,62 @@
+//go:build unit
+
+package service
+
+import (
+	"context"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOpenAIGatewayService_SelectAccountWithScheduler_UsesWSPassthroughSnapshotFlags(t *testing.T) {
+	ctx := context.Background()
+	groupID := int64(10105)
+	account := &Account{
+		ID:          35001,
+		Platform:    PlatformOpenAI,
+		Type:        AccountTypeOAuth,
+		Status:      StatusActive,
+		Schedulable: true,
+		Concurrency: 10,
+		Extra: map[string]any{
+			"openai_oauth_responses_websockets_v2_mode": OpenAIWSIngressModePassthrough,
+		},
+	}
+
+	snapshotCache := &openAISnapshotCacheStub{
+		snapshotAccounts: []*Account{account},
+		accountsByID:     map[int64]*Account{account.ID: account},
+	}
+	cfg := &config.Config{}
+	cfg.Gateway.OpenAIWS.Enabled = true
+	cfg.Gateway.OpenAIWS.OAuthEnabled = true
+	cfg.Gateway.OpenAIWS.APIKeyEnabled = true
+	cfg.Gateway.OpenAIWS.ResponsesWebsocketsV2 = true
+	cfg.Gateway.OpenAIWS.ModeRouterV2Enabled = true
+	cfg.Gateway.OpenAIWS.IngressModeDefault = OpenAIWSIngressModeCtxPool
+
+	svc := &OpenAIGatewayService{
+		accountRepo:        stubOpenAIAccountRepo{accounts: []Account{*account}},
+		cache:              &stubGatewayCache{},
+		cfg:                cfg,
+		schedulerSnapshot:  &SchedulerSnapshotService{cache: snapshotCache},
+		concurrencyService: NewConcurrencyService(stubConcurrencyCache{}),
+	}
+
+	selection, decision, err := svc.SelectAccountWithScheduler(
+		ctx,
+		&groupID,
+		"",
+		"session_hash_ws_passthrough",
+		"gpt-5.1",
+		nil,
+		OpenAIUpstreamTransportResponsesWebsocketV2,
+	)
+	require.NoError(t, err)
+	require.NotNil(t, selection)
+	require.NotNil(t, selection.Account)
+	require.Equal(t, account.ID, selection.Account.ID)
+	require.Equal(t, openAIAccountScheduleLayerLoadBalance, decision.Layer)
+}
diff --git a/frontend/src/components/account/BulkEditAccountModal.vue b/frontend/src/components/account/BulkEditAccountModal.vue
index 5461015b..13c30cf9 100644
--- a/frontend/src/components/account/BulkEditAccountModal.vue
+++ b/frontend/src/components/account/BulkEditAccountModal.vue
@@ -921,6 +921,7 @@ import {
   getPresetMappingsByPlatform
 } from '@/composables/useModelWhitelist'
 import {
+  OPENAI_WS_MODE_CTX_POOL,
   OPENAI_WS_MODE_OFF,
   OPENAI_WS_MODE_PASSTHROUGH,
   isOpenAIWSModeEnabled,
@@ -1069,6 +1070,7 @@ const isOpenAIModelRestrictionDisabled = computed(
 
 const openAIWSModeOptions = computed(() => [
   { value: OPENAI_WS_MODE_OFF, label: t('admin.accounts.openai.wsModeOff') },
+  { value: OPENAI_WS_MODE_CTX_POOL, label: t('admin.accounts.openai.wsModeCtxPool') },
   { value: OPENAI_WS_MODE_PASSTHROUGH, label: t('admin.accounts.openai.wsModePassthrough') }
 ])
 const openAIWSModeConcurrencyHintKey = computed(() =>
diff --git a/frontend/src/components/account/CreateAccountModal.vue b/frontend/src/components/account/CreateAccountModal.vue
index 432fa080..2130c9ab 100644
--- a/frontend/src/components/account/CreateAccountModal.vue
+++ b/frontend/src/components/account/CreateAccountModal.vue
@@ -2932,7 +2932,7 @@ import { applyInterceptWarmup } from '@/components/account/credentialsBuilder'
 import { formatDateTimeLocalInput, parseDateTimeLocalInput } from '@/utils/format'
 import { createStableObjectKeyResolver } from '@/utils/stableObjectKey'
 import {
-  // OPENAI_WS_MODE_CTX_POOL,
+  OPENAI_WS_MODE_CTX_POOL,
   OPENAI_WS_MODE_OFF,
   OPENAI_WS_MODE_PASSTHROUGH,
   isOpenAIWSModeEnabled,
@@ -3180,8 +3180,7 @@ const geminiSelectedTier = computed(() => {
 
 const openAIWSModeOptions = computed(() => [
   { value: OPENAI_WS_MODE_OFF, label: t('admin.accounts.openai.wsModeOff') },
-  // TODO: ctx_pool 选项暂时隐藏，待测试完成后恢复
-  // { value: OPENAI_WS_MODE_CTX_POOL, label: t('admin.accounts.openai.wsModeCtxPool') },
+  { value: OPENAI_WS_MODE_CTX_POOL, label: t('admin.accounts.openai.wsModeCtxPool') },
   { value: OPENAI_WS_MODE_PASSTHROUGH, label: t('admin.accounts.openai.wsModePassthrough') }
 ])
 
diff --git a/frontend/src/components/account/EditAccountModal.vue b/frontend/src/components/account/EditAccountModal.vue
index e5065d7a..1da32e2c 100644
--- a/frontend/src/components/account/EditAccountModal.vue
+++ b/frontend/src/components/account/EditAccountModal.vue
@@ -1858,7 +1858,7 @@ import { applyInterceptWarmup } from '@/components/account/credentialsBuilder'
 import { formatDateTimeLocalInput, parseDateTimeLocalInput } from '@/utils/format'
 import { createStableObjectKeyResolver } from '@/utils/stableObjectKey'
 import {
-  // OPENAI_WS_MODE_CTX_POOL,
+  OPENAI_WS_MODE_CTX_POOL,
   OPENAI_WS_MODE_OFF,
   OPENAI_WS_MODE_PASSTHROUGH,
   isOpenAIWSModeEnabled,
@@ -2020,8 +2020,7 @@ const editWeeklyResetHour = ref<number | null>(null)
 const editResetTimezone = ref<string | null>(null)
 const openAIWSModeOptions = computed(() => [
   { value: OPENAI_WS_MODE_OFF, label: t('admin.accounts.openai.wsModeOff') },
-  // TODO: ctx_pool 选项暂时隐藏，待测试完成后恢复
-  // { value: OPENAI_WS_MODE_CTX_POOL, label: t('admin.accounts.openai.wsModeCtxPool') },
+  { value: OPENAI_WS_MODE_CTX_POOL, label: t('admin.accounts.openai.wsModeCtxPool') },
   { value: OPENAI_WS_MODE_PASSTHROUGH, label: t('admin.accounts.openai.wsModePassthrough') }
 ])
 const openaiResponsesWebSocketV2Mode = computed({