diff --git a/backend/internal/service/openai_account_scheduler.go b/backend/internal/service/openai_account_scheduler.go
index 38b92b47..5fda3abd 100644
--- a/backend/internal/service/openai_account_scheduler.go
+++ b/backend/internal/service/openai_account_scheduler.go
@@ -767,6 +767,9 @@ func (s *defaultOpenAIAccountScheduler) selectByLoadBalance(
 }
 
 func (s *defaultOpenAIAccountScheduler) isAccountTransportCompatible(account *Account, requiredTransport OpenAIUpstreamTransport) bool {
+	if requiredTransport == OpenAIUpstreamTransportAny || requiredTransport == OpenAIUpstreamTransportHTTPSSE {
+		return true
+	}
 	if s == nil || s.service == nil {
 		return false
 	}