Newly unsealed documents in the class-action lawsuit brought by the Authors Guild against OpenAI show the startup deleted two huge datasets, named "books1" and "books2," that had been used to train its GPT-3 artificial-intelligence model.Lawyers for the Authors Guild said in court filings that the datasets probably contained "more than 100,000 published books" and were central to its allegations that OpenAI used copyrighted materials to train AI models.For months the Guild has been seeking infor...