Autonomous digital assistants are being developed that can carry out tasks on behalf of the user – including ordering the groceries. But if you don’t keep an eye on them, dinner might not be quite what you expect …

I’m watching artificial intelligence order my groceries. Armed with my shopping list, it types each item into the search bar of a supermarket website, then uses its cursor to click. Watching what appears to be a digital ghost do this usually mundane task is strangely transfixing. “Are you sure it’s not just a person in India?” my husband asks, peering over my shoulder.

I’m trying out Operator, a new AI “agent” from OpenAI, the maker of ChatGPT. Made available to UK users last month, it has a similar text interface and conversational tone to ChatGPT, but rather than just answering questions, it can actually do things – provided they involve navigating a web browser.