Quebec visual artist Chloé Sabourin filed an application to commence class actions against both Meta and OpenAI on behalf of persons domiciled in Quebec who hold copyright in artistic works used without authorisation by…
Second C3.ai securities class action, covering class period February 26 – August 8, 2025. Alleges management concealed that CEO Siebel's significant health issues impaired his ability to close deals, rendering revenue g…
Quebec-based self-published novelist Anne Robillard filed an application in the Quebec Superior Court in March 2025 seeking authorisation to commence a class action on behalf of all persons domiciled in Quebec who hold…
Andre Dubus III and Susan Orlean, authors owning registered copyrights in books alleged to be included in the training dataset used by NVIDIA to train its NeMo Megatron large language models, filed a class action compla…
Authors Abdi Nazemian, Brian Keene, and Stewart O'Nan filed a class action complaint alleging direct copyright infringement by MosaicML for training its MPT LLM models on the RedPajama-Books dataset, a copy of Books3 fr…
Consumer privacy class action filed September 5, 2023 against OpenAI and Microsoft alleging misuse of plaintiffs' personal data collected from social media platforms and other sites to train ChatGPT without proper conse…
158-page class action filed by Clarkson Law Firm alleging OpenAI and Microsoft 'secretly scraped' personal data of hundreds of millions of internet users — including children — without consent to train ChatGPT and DALL-…
Securities class action alleging C3.ai and its executives made materially false and misleading statements about the company's AI capabilities, customer relationships (especially Baker Hughes partnership), total addressa…
Following a 2022 ProPublica investigation, 30+ tenant class actions were consolidated in Tennessee MDL, alleging RealPage facilitated landlord coordination of nonpublic lease data to raise rents. DOJ filed a statement o…
Quebec photographer Tina Doan alleges Clearview AI (which operated in Canada 2019–mid-2020) committed widespread copyright and moral rights infringements by using web crawlers to collect, copy and store images of faces…
Frequently asked questions
What is an AI class action lawsuit?
An AI class action is a lawsuit brought by a group of plaintiffs (often authors, artists, or users) against an AI company for alleged harms common to the group, such as unauthorized training data use or privacy violations.
Has any AI class action been certified?
Several AI class actions are at various stages of certification. The Authors Guild MDL in S.D.N.Y. is one of the most-watched. Quebec courts authorized class actions against Meta (Robillard) and Meta + OpenAI (Sabourin) in 2025.
Browse the full database
This page is a curated slice of the AI Lawsuit Tracker. For the complete picture, see all 159 cases, defendants by company, or the latest rulings.