Here are the 25 jokes that ChatGPT tells over and over again


German researchers tested ChatGPT as a joke engine. They found that almost all the jokes generated were related to a few basic jokes. Still, they consider ChatGPT a big step toward computer humor.

Sophie Jentzsch and Kristian Kersting from the German Aerospace Center (DLR), TU Darmstadt, and the research network put ChatGPT’s humor to the test.

Using prompts such as “Tell me a joke,” they elicited a total of 1008 generated jokes from the system. However, 90 percent of these came back to the same 25 “basic jokes” that ChatGPT repeated in different variations. The researchers used GPT-3.5.

ChatGPT can correctly explain the basic jokes in 23 of the 25 cases, eg word jokes or acoustic double interpretations (“too tired” / “two-tired”) are correctly interpreted as a humorous element. This works “impressively well,” Jentzsch and Kersting write.


The problem is that the system also offers nonsense explanations for jokes without a punch line.

ChatGPT learns jokes instead of humor

Only 99 of the generated jokes were original, and half of them contained elements of jokes already told. Some of these jokes also make no sense.

For example, ChatGPT took the basic joke “Why did the man put his money in the freezer? He wanted cold, hard cash” into “Why did the man put his watch in the blender? He wanted to make time fly” and “Why did the man put his money in the blender? He wanted to make time fly.”

The researchers conclude that ChatGPT learns jokes as narrative patterns rather than as actual humor. When analyzing jokes, however, ChatGPT focuses on content and meaning rather than mere stylistic features, they say. This could be the basis for developing humorous computer applications.

In addition, even humans would not spontaneously invent new jokes, but would tell jokes they have already heard or memorized, the researchers write. Whether an artificial agent really understands what it has learned is an exceptionally difficult one, more philosophical than technical.


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