MDL
In re OpenAI Copyright MDL
Re-checked against the docket 2026-08-23
In re: OpenAI, Inc., Copyright Infringement Litigation (MDL No. 3143)
Where it stands
The JPML centralized 12 constituent actions — 4 transferred from N.D. Cal. and 8 already pending in the S.D.N.Y. — before Senior District Judge Sidney H. Stein by transfer order dated April 3, 2025. The docket has grown since through conditional transfer orders and directly filed related actions. Judge Stein affirmed Magistrate Judge Ona Wang's order compelling production of 20 million de-identified ChatGPT conversation logs on January 5, 2026, and the MDL remains in coordinated discovery.
Key ruling
Jan. 5, 2026 — Judge Stein affirmed the order requiring production of 20 million anonymized ChatGPT logs, rejecting OpenAI's privacy and relevance objections.
Note on this record
The MDL is a mix of putative class actions (author cases) and individual corporate-plaintiff suits (news publishers); 'isClassAction' reflects that class claims are present within it.The record
- Court
- S.D.N.Y.
- Case number
- 1:25-md-03143 (SHS-OTW)
- Filed
- 2025-04-03
- Defendants
- OpenAI, Inc. · OpenAI OpCo LLC and affiliated OpenAI entities · Microsoft Corporation
- Plaintiffs
- Consolidated news publishers, book authors and other rightsholders whose works were allegedly copied to train GPT models
- Technology at issue
- ChatGPT / GPT-series models
- Relief sought
- Statutory and actual damages, disgorgement, and injunctive relief including destruction of infringing models and datasets
Claims pleaded
Sources (4)
- In re: OpenAI, Inc. Copyright Infringement Litigation — Cases of InterestLoeb & Loeb LLP · 2025-12-15
- OpenAI Loses Privacy Gambit: 20 Million ChatGPT Logs Likely Headed to Copyright PlaintiffsThe National Law Review · 2026-01-05
- AI Infringement Case Updates: July 13, 2026McKool Smith · 2026-07-13
- In re OpenAI, Inc. Copyright Infringement Litigation — JPML docketCourtListener · 2026-01-05
This page describes a publicly filed case. This site is not counsel on this matter, nothing here is legal advice, and the allegations described are allegations unless a court has said otherwise.