Ghost hunting is a tech-heavy pursuit. When Amy Waine and Jarrad Cutting investigate haunted locations, they’re loaded up with software of their own design, such as an app that assigns signals from a phone’s sensors to different words in a database. In the age of ChatGPT, the ghost-hunting pair is probing the world of AI. They describe one of their latest inventions, an app called GhostTube Seer , as “the world’s first AI Ghost Hunting tool”.

In the hands of paranormal investigators, scientific tools like EMF meters (used to detect electromagnetic fields) are repurposed to identify changes and anomalies that they believe indicate supernatural activity. Seer is, in many ways, simply an expansion of that practice, another way to scan an empty room and believe that something may be there. The app, which requires a paid monthly subscription, has more than 1m downloads, according to its Google Play store listing .

But for others in the ghost hunting world, AI is an unwelcome presence.…