Upload app.py

app.py

@@ -1125,15 +1125,11 @@ def ask_ai(problem: str, sympy_info: dict, history: list) -> str:
             continue
         except requests.exceptions.HTTPError as e:
             code = e.response.status_code if e.response else 0
-            if code == 429:
-                last_error = f"⏳ {provider_name} rate limit hit"
-                continue  # try next provider
-            elif code == 401:
-                last_error = f"⚠️ {provider_name} invalid key"
-                continue
-            else:
-                last_error = f"⚠️ {provider_name} HTTP {code}"
-                continue
+            # Skip to next provider for ALL these codes:
+            # 429 = rate limit, 401 = invalid key, 402 = no credits
+            # 403 = forbidden, 503 = service down, 500 = server error
+            last_error = f"⚠️ {provider_name} HTTP {code}"
+            continue  # always try next provider
         except Exception as e:
             last_error = f"⚠️ {provider_name} error: {str(e)}"
             continue