Unsealed briefs in authors' case v. Microsoft/OpenAI
The gist
A court unsealed briefs in the Authors Guild case against Microsoft and OpenAI over book piracy.
The filings could shape whether AI firms must pay authors for training data.
How it unfolded
- Sep 4, 2026Book authors represented by the Authors Guild filed a motion for summary judgment arguing the companies used copies of copyrighted books, including material from LibGen, to train AI models.
- Sep 17, 2026Class Plaintiffs' Memorandum of Law in Support of Motion for Partial Summary Judgment and Corrected Rule 56.1 Statement were filed in S.D.N.Y. 25-md-03143; explosive new documents were released.
- Sep 21, 2026The Authors Guild published a press release titled 'Unsealed Briefs in Authors' Case v. Microsoft/OpenAI: Top Execs Knew Their Mass Book Piracy Was Illegal And Would Put Authors Out of Work' and posted on Instagram that the court unsealed some of the most important filings.