Federal judge William Alsup ruled that it was legal for Anthropic to train its AI models on published books without the authors’ permission. This marks the first time that the courts have given credence to AI companies’ claim that fair use doctrine can absolve AI companies from fault when they use copyrighted materials to train large language models (LLMs). This decision comes as a blow to authors, artists, and publishers who have brought dozens of lawsuits against companies like OpenAI, Meta, M...