diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index a88d6875ca..e181e0ef32 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -1744,6 +1744,30 @@
         "litellm_provider": "openrouter",
         "mode": "chat"
     },
+    "openrouter/openai/gpt-4o": {
+        "max_tokens": 4096,
+        "max_input_tokens": 128000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000005,
+        "output_cost_per_token": 0.000015,
+        "litellm_provider": "openrouter",
+        "mode": "chat",
+        "supports_function_calling": true,
+        "supports_parallel_function_calling": true,
+        "supports_vision": true
+    },
+    "openrouter/openai/gpt-4o-2024-05-13": {
+        "max_tokens": 4096,
+        "max_input_tokens": 128000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000005,
+        "output_cost_per_token": 0.000015,
+        "litellm_provider": "openrouter",
+        "mode": "chat",
+        "supports_function_calling": true,
+        "supports_parallel_function_calling": true,
+        "supports_vision": true
+    },
     "openrouter/openai/gpt-4-vision-preview": {
         "max_tokens": 130000,
         "input_cost_per_token": 0.00001,
diff --git a/litellm/router.py b/litellm/router.py
index 5a47e0dbec..08576f78e1 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -273,7 +273,6 @@ class Router:
 
         if default_fallbacks is not None or litellm.default_fallbacks is not None:
             _fallbacks = default_fallbacks or litellm.default_fallbacks
-            self.validate_fallbacks(fallback_param=_fallbacks)
             if self.fallbacks is not None:
                 self.fallbacks.append({"*": _fallbacks})
             else: