diff --git a/src/proxy/middleware/response/index.ts b/src/proxy/middleware/response/index.ts
index ade7f3d..fa053ae 100644
--- a/src/proxy/middleware/response/index.ts
+++ b/src/proxy/middleware/response/index.ts
@@ -274,15 +274,10 @@ const handleUpstreamErrors: ProxyResHandlerWithBody = async (
         assertNever(service);
     }
   } else if (statusCode === 401) {
-    // OpenAI specific - retry with different key for any 401 error
-    if (service === "openai") {
-      keyPool.disable(req.key!, "revoked");
-      await reenqueueRequest(req);
-      throw new RetryableError("OpenAI key authentication failed, retrying with different key.");
-    }
-    // Key is invalid or was revoked
+    // Universal 401 handling - authentication failed, retry with different key
     keyPool.disable(req.key!, "revoked");
-    errorPayload.proxy_note = `Assigned API key is invalid or revoked, please try again.`;
+    await reenqueueRequest(req);
+    throw new RetryableError(`${service} key authentication failed, retrying with different key.`);
   } else if (statusCode === 402) {
     // Deepseek specific - insufficient balance
     if (service === "deepseek") {