Encyclopaedia Britannica v. OpenAI copyright case

US District Court, Southern District of New York · 1:26-cv-02097 · filed Mar 13, 2026 · Active

Britannica and Merriam-Webster allege OpenAI copied their reference content to train ChatGPT and reproduces it in answers.

The case

2 dated entries

Date	Entry	Type	Source
Aug 7	Ruling: ORDER: The following word limits shall apply to summary judgment motions in the News Cases: Opening Briefs: 8,750 words for Microsoft; 8,750 words for OpenAI; 17,500 words for News	Ruling	Link
Mar 13	Filing: Complaint filed: Encyclopaedia Britannica, Inc. v. OpenAI, Inc.	Filing	Link

When	Case	Kind	Status	Filed
Sep 25Further Case Management Conference Todaynext date	Kadrey v. MetaFurther Case Management ConferenceActiveCopyrightN.D. Cal.	Copyright	Active	Jul 7, 2023
Sep 29Case Management Conference in 4dnext date	Encyclopaedia Britannica v. PerplexityCase Management ConferenceActiveCopyrightS.D. N.Y.	Copyright	Active	Sep 10, 2025
Oct 1Scheduling Conference in 6dnext date	Gilbert v. AnthropicScheduling ConferenceActiveCopyrightD. Mass.	Copyright	Active	May 26
Oct 8Oral Argument in 13dnext date	Hachette Book Group v. GoogleOral ArgumentActiveCopyrightS.D. N.Y.	Copyright	Active	Jul 10
Oct 14Telephonic status hearing in 19dnext date	Woulard v. SunoTelephonic status hearingActiveCopyrightN.D. Ill.	Copyright	Active	Oct 16, 2025
Oct 15Initial Case Management Conference in 20dnext date	EVOX Productions v. GoogleInitial Case Management ConferenceActiveCopyrightN.D. Cal.	Copyright	Active	Jul 9
Oct 19Discovery Hearing in 24dnext date	Nazemian v. NVIDIADiscovery HearingActiveCopyrightN.D. Cal.	Copyright	Active	Mar 8, 2024
Oct 23Status Conference in 28dnext date	UMG Recordings v. Uncharted Labs (Udio)Status ConferenceActiveCopyrightS.D. N.Y.	Copyright	Active	Jun 24, 2024

Caption and links

Encyclopaedia Britannica, Inc. v. OpenAI, Inc.