<p>OpenAI claims its agents have solved the Navier-Stokes problem. But questions remain about how useful and independent its work really is</p><p>On 8 September, OpenAI claimed that its AI agents had solved the Navier-Stokes problem, one of the most famous and difficult challenges in mathematics. Had a human solved it, they would have collected both prize money and plaudits from their fellows. The announcement instead ignited what some mathematicians have called an “<a href="https://www.science.