Mathematicians want proof OpenAI didn’t use their work

<figure> <img alt="" data-caption="" data-portal-copyright="Image: The Verge" data-has-syndication-rights="1" src="https://platform.theverge.com/wp-content/uploads/sites/2/2026/09/STKS505_QUANTUM_COMPUTING_A.jpg?quality=90&#038;strip=all&#038;crop=0,0,100,100" /> <figcaption> </figcaption> </figure> <p class="wp-block-paragraph">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 Just days after a bitter row erupted over whether the company's models benefited from unpublished work, a second mathematician has come forward accusing the AI giant of unethical and "dishonest" behavior and a lack of transparency about the origins of its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.</p> <p class="wp-block-paragraph">In a <a href="https://mathstodon.xyz/@andreasthom/117240535270608201">series</a> <a href="https://mathstodon.xyz/@andreasthom/117240536885387540">of</a> <a href="https://mathstodon.xyz/@andreasthom/117240537520615623">posts</a> on Mastodon, mathematician Andreas Thom raised concerns that interactions he and his colleagues had had with the ChatGPT chatbot before OpenAI's triumphant announcement may have contributed to its success in the field. One of the …</p> <p><a href="https://www.theverge.com/ai-artificial-intelligence/993263/where-does-openai-get-mathematics-training-data">Read the full story at The Verge.</a></p>