The latest math problem OpenAI is trying to solve is a bunch of angry mathematicians.

A researcher at OpenAI said on Thursday that the ChatGPT maker is no longer sponsoring Caltech’s “math hackathon,” an event where participants use large language models to solve research problems.

OpenAI’s exit follows an open letter released on Wednesday from current and former Caltech mathematicians, who said the event, which is sponsored by AI companies, “is likely to have destructive impacts for the mathematical community.”

“We recognize that the rapid progress of AI in mathematics is disruptive,” Dan Roberts, OpenAI’s research lead, said on X. “We’re…