Active Last verified: Apr 25, 2026

Tremblay v. OpenAI, Inc.

Authors Paul Tremblay and others sued OpenAI, alleging their copyrighted books were used without permission to train ChatGPT, which can generate accurate summaries of the works. The case asserts direct copyright infringement under the Copyright Act, along with claims for vicarious copyright infringement, DMCA violations, unfair competition under California UCL, negligence, and unjust enrichment; the district court (ND Cal) dismissed most claims except direct copyright infringement and a UCL unfair practices theory, while consolidated with related cases like Silverman v. OpenAI. It is a putative class action on behalf of authors whose books were allegedly copied for AI training data, part of broader OpenAI copyright litigation including Chabon and Authors Guild cases.[1][2][3][6]

🏛️ NDCA· Case No. 3:23-cv-03223· Filed Jun 28, 2023

Summary

Authors Paul Tremblay and others sued OpenAI, alleging their copyrighted books were used without permission to train ChatGPT, which can generate accurate summaries of the works. The case asserts direct copyright infringement under the Copyright Act, along with claims for vicarious copyright infringement, DMCA violations, unfair competition under California UCL, negligence, and unjust enrichment; the district court (ND Cal) dismissed most claims except direct copyright infringement and a UCL unfair practices theory, while consolidated with related cases like Silverman v. OpenAI. It is a putative class action on behalf of authors whose books were allegedly copied for AI training data, part of broader OpenAI copyright litigation including Chabon and Authors Guild cases.[1][2][3][6]

Case details

Court
NDCA
Docket number
3:23-cv-03223
Filed
Jun 28, 2023
Status
Active

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