diff --git a/tests/e2e/management/test_management_e2e.py b/tests/e2e/management/test_management_e2e.py
index fe6c4ef0e22..bfffa70b081 100644
--- a/tests/e2e/management/test_management_e2e.py
+++ b/tests/e2e/management/test_management_e2e.py
@@ -423,6 +423,23 @@ class TestModelRoutes:
             "after /model/update",
         )
 
+    @pytest.mark.covers("mgmt.model.add.persists")
+    def test_new_persists_to_model_info_catalog(
+        self, client: ManagementClient, resources: ResourceManager
+    ) -> None:
+        model_name = f"e2e-mgmt-model-{unique_marker()}"
+        model_id = client.proxy.create_model(
+            model_name,
+            LiteLLMParamsBody(model="openai/gpt-5.5", api_key="e2e-dummy-key"),
+        )
+        resources.defer(lambda: client.proxy.delete_model(model_id))
+
+        cataloged = [entry.model_name for entry in client.proxy.model_info()]
+        assert model_name in cataloged, (
+            f"/model/info does not list {model_name!r} after /model/new; registration did not persist "
+            f"into the routing catalog: {cataloged}"
+        )
+
 
 def _assert_route_forbidden(route: str, outcome: StreamingResponse) -> None:
     assert outcome.status_code == 403, (