diff --git a/cognite/client/data_classes/data_modeling/cdm/__init__.py b/cognite/client/data_classes/data_modeling/cdm/__init__.py
index 9d48db4f9..810d769a1 100644
--- a/cognite/client/data_classes/data_modeling/cdm/__init__.py
+++ b/cognite/client/data_classes/data_modeling/cdm/__init__.py
@@ -1 +1,5 @@
 from __future__ import annotations
+
+from cognite.client.utils._experimental import FeaturePreviewWarning
+
+FeaturePreviewWarning("alpha", "alpha", "Core Data Model").warn()