Is the world ready for ChatGPT therapists?

Since 2015, Koko, a mobile mental-health app, has tried to provide crowdsourced support for people in need. Text the app to say that you’re feeling guilty about a work issue, and an empathetic response will come through in a few minutes — clumsy perhaps, but unmistakably human — to suggest some positive coping strategies.

The app might also invite you to respond to another person’s plight while you wait. To help with this task, an assistant called Kokobot can suggest some basic starters, such as “I’ve been there”.

But last October, some Koko app users were…