AI has a reputation for amplifying hate. A new study finds it can weaken antisemitism, too.

Every day, it can seem, brings a fresh headline about how AI chatbots are spreading hateful ideas. But researchers tasked with understanding antisemitism and how it can be stopped say they have found evidence that AI chatbots can actually fight hate.

Researchers affiliated with the Anti-Defamation League’s Center for Antisemitism Research trained a large-language model, or LLM, on countering antisemitic conspiracy theories, then invited people who subscribed to at least one of those theories to interact with it.

The result, according to a study released on Wednesday : The users soon believed in the antisemitic theories less, while at the same time feeling more favorable about Jews as a group. And the effects were still strong a month later, even without further engagement with the LLM.