GDPval: Evaluating AI Model Performance on Real-World Economically Valuable Tasks. - Tejal Patwardhan; Rachel Dias; Elizabeth Proehl; Grace Kim; Michele Wang; Olivia Watkins; Simón Posada Fishman; Marwan Aljubeh; Phoebe Thacker; Laurance Fauconnet; Natalie S. Kim; Patrick Chao; et al. (CoRR, 2025)