Most of web applications are CRUD apps - they store information in a database, and allow modifying & retrieving it later. People generally expect these systems to be deterministic, so that the data you submit will be later available in same format.

I certainly wouldn't want a patient healthcare system that might return slightly different results, or store the data in different format each time you make a request. Code is and will continue to be the best way to build deterministic computer information systems, regardless of whether it's generated by humans or AI.