Enlarge / Comedian and author Sarah Silverman. (credit: Jason Kempin / Staff | Getty Images North America) On Friday, the Joseph Saveri Law Firm filed US federal class-action lawsuits on behalf of Sarah Silverman and other authors against OpenAI and Meta, accusing the companies of illegally using copyrighted material to train AI language models such as ChatGPT and LLaMA. Other authors represented include Christopher Golden and Richard Kadrey, and an earlier class-action lawsuit filed by the same firm on June 28 included authors Paul Tremblay and Mona Awad.