diff --git a/apps/web/src/app/api/models/up/route.ts b/apps/web/src/app/api/models/up/route.ts
index fc141ec11..6519b706e 100644
--- a/apps/web/src/app/api/models/up/route.ts
+++ b/apps/web/src/app/api/models/up/route.ts
@@ -55,6 +55,8 @@ const HEALTH_CHECK_EXCLUSIONS = new Set([
   'google/gemini-3.1-pro-preview',
   // We don't control when this model may be retracted by OpenRouter.
   'openrouter/elephant-alpha',
+  // GPT 5.4 shows as down but shouldn't trigger alerts.
+  'openai/gpt-5.4',
 ]);
 
 function emptyMetrics(): Omit<ModelHealthMetrics, 'monitored'> {