An Australian radio station is facing backlash after using an AI-generated host for the last six months without disclosing it.

Australian Radio Network’s CADA station, which broadcasts in Sydney and on the iHeartRadio app, created a host called Thy using artificial intelligence software developed by voice cloning firm ElevenLabs.

The Workdays with Thy show presented music for four hours a day from Monday to Friday, but did not mention on its website or promotional materials that Thy was not a real person.