Fix aembedding retry propagation

litellm/router.py

@@ -4383,6 +4383,7 @@ class Router:
             kwargs["model"] = model
             kwargs["input"] = input
             kwargs["original_function"] = self._aembedding
+            kwargs["num_retries"] = kwargs.get("num_retries", self.num_retries)
             self._update_kwargs_before_fallbacks(model=model, kwargs=kwargs)
             response = await self.async_function_with_fallbacks(**kwargs)
             return response

tests/router_unit_tests/test_router_embedding_headers.py

@@ -103,6 +103,40 @@ class TestRouterEmbeddingHeaders:
                 assert call_kwargs["model"] == "text-embedding-ada-002"
                 assert "kwargs" in call_kwargs
 
+    @pytest.mark.asyncio
+    async def test_aembedding_passes_num_retries_to_fallbacks(self):
+        """
+        Test that router.aembedding() seeds num_retries before fallback handling.
+
+        Regression test for #27363.
+        """
+        model_list = [
+            {
+                "model_name": "text-embedding-ada-002",
+                "litellm_params": {
+                    "model": "text-embedding-ada-002",
+                    "api_key": "fake-key",
+                },
+            }
+        ]
+
+        router = Router(model_list=model_list, num_retries=3)
+
+        with patch.object(
+            router, "async_function_with_fallbacks", new_callable=AsyncMock
+        ) as mock_async_fallbacks:
+            mock_async_fallbacks.return_value = MagicMock(
+                data=[{"embedding": [0.1, 0.2, 0.3]}]
+            )
+
+            await router.aembedding(
+                model="text-embedding-ada-002", input=["test input"]
+            )
+
+            mock_async_fallbacks.assert_called_once()
+            call_kwargs = mock_async_fallbacks.call_args.kwargs
+            assert call_kwargs["num_retries"] == 3
+
     def test_embedding_propagates_default_litellm_params(self):
         """
         Test that embedding calls properly propagate default_litellm_params including headers.