Researchers discover that ChatGPT prefers repeating 25 jokes over and over

Enlarge / An AI-generated image of “a laughing robot.”Midjourney

On Wednesday, two German researchers, Sophie Jentzsch and Kristian Kersting, released a paper that examines the ability of OpenAI’s ChatGPT-3.5 to understand and generate humor. In particular, they discovered that ChatGPT’s knowledge of jokes is fairly limited: During a test run, 90 percent of 1,008 generations were the same 25 jokes, leading them to conclude that the responses were likely learned and memorized during the AI model’s training rather than being newly generated.

The two researchers, associated with the Institute for Software Technology, German Aerospace Center (DLR), and Technical University Darmstadt,

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