On May 13th OpenAI unveiled its latest model, GPT-4o. Mira Murati, the companys chief technology officer, called it the future of interaction between ourselves and the machines, because users can now speak to the AI and it will talk back in an expressive, human-like way.

The upgrade is part of wider moves across the tech industry to make chatbots and other artificial-intelligence, or AI, products into more useful and engaging assistants for everyday life. Show GPT-4o pictures or videos of art or food that you enjoy and it could probably furnish you with a list of museums, galleries and restaurants you might like. But it still has some way to go before it can become a truly useful AI assistant. Ask the model to plan a last-minute trip to Berlin for you based on your leisure preferencescomplete with details of which order to do everything, given how long each one takes and how far apart they are and which train tickets to buy, all within a set budgetand it will disappoint.

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Today's AI models are impressive. Teams of them will be formidable - The Economist