diff --git a/backend/internal/handler/openai_gateway_handler_test.go b/backend/internal/handler/openai_gateway_handler_test.go
index 543cda1e55..bf3061d5e2 100644
--- a/backend/internal/handler/openai_gateway_handler_test.go
+++ b/backend/internal/handler/openai_gateway_handler_test.go
@@ -17,6 +17,7 @@ import (
 	"github.com/Wei-Shaw/sub2api/internal/config"
 	pkghttputil "github.com/Wei-Shaw/sub2api/internal/pkg/httputil"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/xai"
 	"github.com/Wei-Shaw/sub2api/internal/server/middleware"
 	"github.com/Wei-Shaw/sub2api/internal/service"
 	coderws "github.com/coder/websocket"
@@ -643,6 +644,9 @@ func TestResolveOpenAIMessagesDispatchMappedModel(t *testing.T) {
 	})
 
 	t.Run("grok_group_maps_claude_cli_model_to_grok_default", func(t *testing.T) {
+		original := xai.RuntimeModelMappingOptions()
+		t.Cleanup(func() { xai.SetRuntimeModelMappingOptions(original) })
+		xai.SetRuntimeModelMappingOptions(xai.ModelMappingOptions{EnableCrossClientMap: true})
 		apiKey := &service.APIKey{
 			Group: &service.Group{
 				Platform: service.PlatformGrok,
diff --git a/backend/internal/server/routes/prompt_audit_route_coverage_test.go b/backend/internal/server/routes/prompt_audit_route_coverage_test.go
index e4591ab4f5..4c0b583980 100644
--- a/backend/internal/server/routes/prompt_audit_route_coverage_test.go
+++ b/backend/internal/server/routes/prompt_audit_route_coverage_test.go
@@ -49,6 +49,10 @@ func TestEveryGatewayPOSTRouteIsClassifiedForPromptAuditCoverage(t *testing.T) {
 	excluded := map[string]string{
 		"/messages/count_tokens":     "tokenization only; it does not execute a model request",
 		"/images/batches/:id/cancel": "control-plane cancellation with no user prompt",
+		"/tts":                       "voice synthesis input is not a text-generation prompt",
+		"/stt":                       "speech transcription is not a text-generation prompt",
+		"/custom-voices":             "voice profile management has no model prompt",
+		"/web_search":                "search query is handled by the dedicated search workflow",
 	}
 
 	unclassified := make([]string, 0)