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  • A wrong number, a cryptic message, and a big Nobel win

    Nobel Prize winners Katalin Karikó and Drew Weissman share their thoughts on their newly minted honor at a University press conference.
    nobel prize group with weissman and kariko with penn president liz magill
    J. Larry Jameson, executive vice president of the University of Pennsylvania for the Health System and Dean of the Perelman School of Medicine, and Penn President Liz Magill smile for a photo with Nobel laureates Katalin Karikó and Drew Weissman.

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  • OpenAI, DeepSeek, and Google vary widely in identifying hate speech
    Two people work on coding at computer.

    Image: Kindamorphic via Getty Images

    OpenAI, DeepSeek, and Google vary widely in identifying hate speech

    Neil Fasching and Yphtach Lelkes of the Annenberg School for Communication have found dramatic differences in how large language models classify hate speech, with especially large variations for language about certain demographic groups, raising concerns about bias and disproportionate harm.

    Sep 10, 2025