diff --git a/react-components/stories/utilities/is3DModelOptions.ts b/react-components/stories/utilities/is3DModelOptions.ts
deleted file mode 100644
index 24726cb8981..00000000000
--- a/react-components/stories/utilities/is3DModelOptions.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-/*!
- * Copyright 2023 Cognite AS
- */
-import { type Add3dResourceOptions, type AddResourceOptions } from '../../src';
-
-export function is3DModelOptions(
-  threeDResource: AddResourceOptions
-): threeDResource is Add3dResourceOptions {
-  return (
-    (threeDResource as Add3dResourceOptions).modelId !== undefined &&
-    (threeDResource as Add3dResourceOptions).revisionId !== undefined
-  );
-}