diff --git a/model/pricing_default.go b/model/pricing_default.go
index f5cf5f1..d40c10c 100644
--- a/model/pricing_default.go
+++ b/model/pricing_default.go
@@ -1,7 +1,10 @@
 package model
 
 import (
+	"fmt"
 	"strings"
+
+	"github.com/QuantumNous/new-api/common"
 )
 
 // 简化的供应商映射规则
@@ -93,6 +96,9 @@ func initDefaultVendorMapping(metaMap map[string]*Model, vendorMap map[int]*Vend
 
 		if vendorID == 0 {
 			// 仍未匹配到供应商 → 跳过（不给未匹配的模型写入 vendor_id=0 覆盖已有记录）
+			if strings.Contains(modelLower, "seedance") || strings.Contains(modelLower, "minimax") {
+				common.SysLog(fmt.Sprintf("initDefaultVendorMapping: model %q matched pattern but vendorID=0 (getOrCreateVendor failed)", modelName))
+			}
 			continue
 		}
 
@@ -127,9 +133,11 @@ func getOrCreateVendor(vendorName string, vendorMap map[int]*Vendor) int {
 	}
 
 	if err := newVendor.Insert(); err != nil {
+		common.SysLog(fmt.Sprintf("getOrCreateVendor: insert vendor %q failed: %v", vendorName, err))
 		return 0
 	}
 
+	common.SysLog(fmt.Sprintf("getOrCreateVendor: created new vendor %q with id=%d", vendorName, newVendor.Id))
 	vendorMap[newVendor.Id] = newVendor
 	return newVendor.Id
 }