A group of nonfiction writers, including three who have won Pulitzer Prizes for their work, joined author Julian Sancton in filing an amended complaint in a copyright infringement suit against ChatGPT developer OpenAI and Microsoft on Tuesday in the Southern District of New York.

Political writer Jonathan Alter, civil rights historian Taylor Branch and New Yorker staff writer and author Jia Tolentino joined eight other authors and Sancton, the original plaintiff, in the proposed class action suit, which accuses OpenAI and Microsoft of pretending “as if the laws protecting copyright do not exist.”