xAI is suing the state of California to prevent enforcement of AB 2013, a transparency law requiring developers to publish documentation describing the datasets used to train publicly available AI systems. xAI argues the disclosure requirement violates its First Amendment rights and intellectual property, and claimed at the district court level that consumers don't care about training data. Having lost its bid to prevent enforcement in the trial court, xAI has appealed the case to the 9th Circuit. The law does not require revealing source code, model weights, or proprietary trade secrets, functioning as an ingredient label. The article notes that courts have consistently rejected similar First Amendment arguments in the past, citing historical industry resistance to disclosure laws such as the Food, Drug and Cosmetic Act, post-thalidomide drug safety requirements, and automobile safety defect disclosure laws.