diff --git a/open-sse/services/accountFallback.ts b/open-sse/services/accountFallback.ts
index fc9c45d1da..fcaecd09f6 100644
--- a/open-sse/services/accountFallback.ts
+++ b/open-sse/services/accountFallback.ts
@@ -57,7 +57,7 @@ type ProviderFailureEntry = {
 };
 
 // Error codes that count toward provider-level failure threshold
-const PROVIDER_FAILURE_ERROR_CODES = new Set([429, 408, 500, 502, 503, 504]);
+const PROVIDER_FAILURE_ERROR_CODES = new Set([408, 500, 502, 503, 504]);
 
 // Provider-level failure state map: providerId -> failure entry
 const providerFailureState = new Map<string, ProviderFailureEntry>();