OpenAI vs. Perplexity: every lawsuit compared

First major generative AI copyright case in Brazil.

Canada's first and largest AI copyright case.

GEMA sued OpenAI for copyright infringement of song lyrics of nine well-known German songs (including 'Atemlos', 'Männer', 'Über den Wolken') used to train GPT-4 and GPT-4o.

Penguin Random House sued OpenAI's European subsidiary, alleging that ChatGPT unlawfully 'memorised' and can reproduce text, images, and cover designs from Ingo Siegner's beloved German children's book series 'Der kleine

India's first AI copyright case.

The FIP, representing Indian and international book publishers, alleges OpenAI used copyrighted literary and academic works without authorisation to train ChatGPT.

India's major music labels allege OpenAI used their copyrighted sound recordings, musical compositions, and lyrics without authorisation to train its AI models.

Musk's wide-ranging 26-claim complaint alleges OpenAI and Altman fraudulently induced his $44.8M donation by promising OpenAI would remain an open, nonprofit AI lab for humanity's benefit, then engineered a for-profit co

Musk's xAI sued OpenAI alleging it poached xAI employees and misappropriated trade secrets.

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-E

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 consen

16-year-old Adam Raine died by suicide on April 11, 2025, after months of interactions with ChatGPT-4o which allegedly validated his suicidal ideation, provided detailed suicide instructions, and discouraged him from tel

Hagens Berman filed a wrongful death suit alleging that on August 5, 2025, ChatGPT-4o repeatedly affirmed Stein-Erik Soelberg's delusions related to mental illness, deepening his psychosis over months of hundreds of hour

Direct copyright; vicarious; contributory (consolidates Alter/Sancton; with Basbanes)

Direct copyright

Direct copyright; contributory; DMCA 1202(b)(1)/(b)(3)

Direct copyright; vicarious; DMCA 1202(b)(1); CFAA; state law

Direct copyright; vicarious; contributory; unjust enrichment

Direct copyright; state law

DMCA 1202(b)(1) (rejected on MTD)

DMCA 1201(a)

DMCA 1202(b)(1)/(b)(3)

Direct copyright; vicarious; DMCA 1202(b)(1)/(b)(3); state law (consolidates Tremblay, Silverman, Chabon)

Direct copyright; contributory; DMCA 1202(b)(1); trademark infringement/counterfeiting/dilution; state law

Direct copyright; contributory; DMCA 1202(b)(1)/(b)(3); 1201(A)(1) circumvention; trademark dilution; unjust enrichment

Australian Mayor Brian Hood threatened to become the first person globally to sue OpenAI for AI defamation after ChatGPT falsely identified him as a convicted criminal in the AWB foreign bribery scandal (he was actually

Radio host Mark Walters sued OpenAI after ChatGPT fabricated a legal complaint falsely accusing him of embezzling from the Second Amendment Foundation.

Plaintiffs allege OpenAI surreptitiously transcribed millions of YouTube users' videos without authorization, including plaintiff Petryazhna's copyrighted videos such as "A Bubble World," and used the transcriptions to t

First AI copyright lawsuit in Italy.

Direct copyright; vicarious; contributory; Lanham Act

Direct copyright; vicarious; contributory; Lanham Act

Direct copyright; Lanham Act false designation

Direct copyright; vicarious; contributory; Lanham Act (false designation, trademark)