diff --git a/backend/internal/service/openai_gateway_service.go b/backend/internal/service/openai_gateway_service.go
index 3e23e3e5dc..4c25825f0f 100644
--- a/backend/internal/service/openai_gateway_service.go
+++ b/backend/internal/service/openai_gateway_service.go
@@ -1282,7 +1282,7 @@ func (s *OpenAIGatewayService) SelectAccountWithLoadAwareness(ctx context.Contex
 		if !acc.IsSchedulable() {
 			continue
 		}
-		if requestedModel != "" && !acc.IsModelSupported(requestedModel) {
+		if requestedModel != "" && !acc.IsOpenAIPassthroughEnabled() && !acc.IsModelSupported(requestedModel) {
 			continue
 		}
 		candidates = append(candidates, acc)
@@ -1443,7 +1443,7 @@ func (s *OpenAIGatewayService) resolveFreshSchedulableOpenAIAccount(ctx context.
 	if !fresh.IsSchedulable() || !fresh.IsOpenAI() {
 		return nil
 	}
-	if requestedModel != "" && !fresh.IsModelSupported(requestedModel) {
+	if requestedModel != "" && !fresh.IsOpenAIPassthroughEnabled() && !fresh.IsModelSupported(requestedModel) {
 		return nil
 	}
 	return fresh