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  • What to expect as Penn transitions to a fully in-person fall semester

    Penn Today looks at guidelines for those on campus this summer, what members of the community can expect as they return to campus, and the role that vaccines have in safely resuming in-person activities.
    two people wearing masks walk down penn commons
    As Penn looks forward to a fully in-person campus experience for the fall semester, this summer will be a period of transition as faculty, staff, postdocs, and students navigate evolving public health measures while returning to campus in a way that helps keep the community safe.

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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