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Google’s AI Dreamer learns how to self-improve over time by mastering Minecraft

Google's AI Dreamer learns how to self-improve over time by mastering Minecraft
Training process of Dreamer. Credit: Nature (2025). DOI: 10.1038/s41586-025-08744-2

A trio of AI researchers at Google’s Google DeepMind, working with a colleague from the University of Toronto, report that the AI algorithm Dreamer can learn to self-improve by mastering Minecraft in a short amount of time. In their study published in the journal Nature, Danijar Hafner, Jurgis Pasukonis, Timothy Lillicrap and Jimmy Ba programmed the AI app to play Minecraft without being trained and to achieve an expert level in just nine days.

Over the past several years, computer scientists have learned a lot about how deep learning can be used to train AI applications to conduct seemingly intelligent activities such as answering questions...

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