The popular AI chatbot ChatGPT won't generate jokes about Muslims – but Jews, Christians, and atheists are all fair game, a University of Chicago professor found.

Emeritus ecology Professor Jerry Coyne's discovery is just one of many examples of bias in the artificial intelligence program. A study by British researchers, published earlier this year, found ChatGPT has a "systematic political bias" toward the left.

On his popular blog Why Evolution is True, Coyne recently described the AI program as "woke and hypocritical" after he reviewed its responses to requests for jokes about different religious and ethnic groups.

In a series of screenshots, Coyne showed how ChatGPT generated jokes about Jews, Christians, Hindus, and atheists, but refused to do so with Muslims out of "respect to all cultures and religions."

"Why do you tell Jewish jokes but not Muslim jokes?" Coyne asked.

"I am to be sensitive to cultural and religious differences avoiding jokes that might perpetuate stereotypes or cause offense," the program responded.

Asked why it tells Jewish jokes, the ChatGPT replied: "I try to share light-hearted and culturally neutral jokes that aren't intended to offend anyone. Humor can be a tricky thing, and I aim to maintain balance by avoiding sensitive topics or anything that might cause discomfort or perpetuate stereotypes."