Mathematicians want proof OpenAI didn’t use their work 

Sam Altman, chief executive officer of OpenAI, during a media tour of the Stargate AI data center. | Bloomberg via Getty Images Another researcher is challenging OpenAI about the data driving its increasingly impressive array of mathematical discoveries.

Just days after a bitter row erupted over whether the company's models benefited from unpublished work, a second mathematician has come forward accusing the AI giant of unethical and "dishonest" behavior and a lack of transparency about the origins of its training data.