diff --git a/internal/entity/tenant_model.go b/internal/entity/tenant_model.go
index 72e4b41a5a..7a34ed195d 100644
--- a/internal/entity/tenant_model.go
+++ b/internal/entity/tenant_model.go
@@ -24,6 +24,7 @@ type TenantModel struct {
 	InstanceID string `gorm:"column:instance_id;size:32;not null;index" json:"instance_id"`
 	ModelType  string `gorm:"column:model_type;size:32;not null" json:"model_type"`
 	Status     string `gorm:"column:status;size:32;default:'active'" json:"status"`
+	Extra      string `gorm:"column:extra;size:1024;default:'{}'" json:"extra"`
 	BaseModel
 }
 
diff --git a/internal/entity/tenant_model_instance.go b/internal/entity/tenant_model_instance.go
index 8a2ffaa6be..7563f7bd8d 100644
--- a/internal/entity/tenant_model_instance.go
+++ b/internal/entity/tenant_model_instance.go
@@ -23,7 +23,7 @@ type TenantModelInstance struct {
 	ProviderID   string `gorm:"column:provider_id;size:32;not null;uniqueIndex:idx_api_key_provider_id" json:"provider_id"`
 	APIKey       string `gorm:"column:api_key;size:512;not null;uniqueIndex:idx_api_key_provider_id" json:"api_key"`
 	Status       string `gorm:"column:status;size:32;default:'active'" json:"status"`
-	Extra        string `gorm:"column:extra;size:512;default:'active'" json:"extra"`
+	Extra        string `gorm:"column:extra;size:512;default:'{}'" json:"extra"`
 	BaseModel
 }