A year ago, a group of authors filed suit against AI company Anthropic over its creation of an enormous library of digitized books to train its Claude LLMs, arguing that because Anthropic did not seek authors’ permission for the creation of the library or for AI training on the included works (claiming, as most AI companies do, that this constituted fair use), Anthropic's actions constituted copyright infringment. (You can see the original complaint here.)
In addition to purchasing and scanning physical books, Anthropic also downloaded millions of books and other works illegally uploaded to pirate sites. This past June, the judge in the case, Judge William Alsup, determined that while Anthropic’s digitzation of physical books, and its use of these for AI training, did indeed qualify as fair use, its downloading of pirated copies did not.
Accordingly, Judge Alsup certified a class of LibGen & PiLiMi Pirated Books authors (LibGen is pirate site Library Genesis; PiLiMi is pirate site Pirate Library Mirror), consisting of "all beneficial or legal copyright owners" whose work both possesses an ISBN or ASIN, and was registered with the US Copyright Office within 5 years of publication and before being downloaded by Anthropic (August 10, 2022).