Geoffrey Hinton: AI Godfather, Nobel Winner Who Left Google

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Geoffrey Hinton is the “godfather of AI”: a cognitive psychologist who spent 40 years stubbornly developing neural networks when the rest of computer science considered them a dead end, mentor to Ilya Sutskever and co-author of AlexNet, winner of the 2018 Turing Award and 2024 Nobel Prize in Physics. In May 2023 he left Google so he could speak freely about the risks posed by the technology he helped create. Facts checked September 18, 2026.

Forty Years Against the Current

Hinton started with experimental psychology at Cambridge, worked as a carpenter for a year, then completed his AI PhD at Edinburgh under an advisor who didn’t believe in neural networks. When he couldn’t get funding in the UK, he moved to the US (San Diego, Carnegie Mellon), and in 1987 settled in Toronto. In 1986, with David Rumelhart and Ronald Williams, he published the paper that popularized backpropagation, the algorithm for training multilayer networks. For the next two decades, neural networks remained a niche in computer science, and Hinton was one of the few who kept working on them.

AlexNet, Google and the Nobel Prize

In 2012, his students Alex Krizhevsky and Ilya Sutskever built AlexNet under his supervision, a network that won the ImageNet competition by a margin no one had seen before; the entire industry now dates the deep learning era from that moment. Google acquired their company DNNresearch in 2013, and Hinton spent a decade splitting his time between Google Brain and the university. In 2018 he received the Turing Award (with LeCun and Bengio), and in 2024 the Nobel Prize in Physics, together with John Hopfield, for “foundational discoveries that enable machine learning with artificial neural networks.”

Why He Left Google and What He Warns About

In May 2023, Hinton resigned from Google, explaining that he wanted to “speak freely about AI risks” without having to consider his employer. He warns about deliberate misuse by bad actors, technological unemployment, and existential risk from systems smarter than humans; after the Nobel he called for urgent research into how to control such systems. He emphasizes that competitors will need to cooperate on safety rules. This position is close to Dario Amodei’s, and opposed to LeCun’s. I track the full map of these debates on the Who’s Who in AI page.

The third godfather: Yoshua Bengio, who today warns most loudly about the pace of model development.

Common Questions

How old is Geoffrey Hinton?

78. He was born December 6, 1947 in London; he holds British and Canadian citizenship.

What did Hinton win the Nobel Prize for?

For discoveries that enabled machine learning using neural networks, including Boltzmann machines. He shared the 2024 Physics Prize with John Hopfield.

Does Hinton think AI will destroy humanity?

He believes the risk is real and non-negligible, and that we don’t know how to control systems smarter than us; he doesn’t claim catastrophe is certain. That’s why he calls for safety research and cooperation between companies.

Sources checked September 18, 2026: Wikipedia EN “Geoffrey Hinton” with citations (Nobel Committee announcement 2024, ACM, The New York Times on leaving Google in May 2023, Vector Institute).

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