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  • The monumental effort to scale up campus COVID-19 testing

    Key facts and figures point to the scale of the Penn Cares testing program and how Project Quaker helped bring students back to campus this spring.
    people in a large outdoor tent standing on marked circles and walking to tables staffed by people wearing surgical gowns
    As of mid-March, more than 140,000 saliva-based tests for COVID-19 have been conducted since the start of the spring semester Penn Cares testing program.

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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