Apple Inc. is facing a class-action lawsuit alleging that it used copyrighted books without permission to train its AI systems. Authors Grady Hendrix and Jennifer Roberson filed the complaint in a California federal court, accusing Apple of copying protected works without consent, credit, or compensation. The lawsuit targets Apple's "OpenELM" large language models, claiming the use of a dataset of pirated books. Both authors found their works in the unauthorized training materials. This is part of a broader trend of legal challenges in the tech industry over AI training practices. Microsoft Corp. has also faced similar claims. The current stock price of AAPL can be found through the NASDAQ exchange.