diff --git a/backend/internal/service/ops_settings.go b/backend/internal/service/ops_settings.go
index a6a4a0d71..7514cc80f 100644
--- a/backend/internal/service/ops_settings.go
+++ b/backend/internal/service/ops_settings.go
@@ -368,7 +368,7 @@ func defaultOpsAdvancedSettings() *OpsAdvancedSettings {
 		Aggregation: OpsAggregationSettings{
 			AggregationEnabled: false,
 		},
-		IgnoreCountTokensErrors:   false,
+		IgnoreCountTokensErrors:   true,  // count_tokens 404 是预期行为，默认忽略
 		IgnoreContextCanceled:     true,  // Default to true - client disconnects are not errors
 		IgnoreNoAvailableAccounts: false, // Default to false - this is a real routing issue
 		AutoRefreshEnabled:        false,