Fair Use & AI Training

Cases where the fair-use defense is at the heart of the dispute. Watch how courts weigh transformativeness, market substitution, and corpus provenance.

13 cases · verified against public dockets · updated weekly

Authors Guild v. OpenAI
SDNY · Filed Sep 19, 2023
active

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

Reddit v. Perplexity
SDNY · Filed Oct 22, 2025
active

Vicarious; contributory; DMCA 1202(b)(1); 1201(a)(1)(A)

Doe v. GitHub (Copilot)
NDCA → 9th Cir. · Filed Nov 3, 2022
Decided

DMCA 1202(b)(1)/(b)(3) on appeal; state law

GEMA v. OpenAI
LG München I · Filed Nov 13, 2024
Decided

On Appeal

Thomson Reuters v. Ross Intelligence
D. Del. → 3d Cir. · Filed May 6, 2020
Decided

Direct copyright; state law

Tremblay / Silverman v. OpenAI
N.D. Cal. → SDNY MDL · Filed Jun 28, 2023
active

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

UMG v. Udio
SDNY · Filed Jun 24, 2024
Settled

Partial Settlement

Kadrey v. Meta Platforms
NDCA · Filed Jul 7, 2023
Decided

Direct copyright; contributory infringement; DMCA 1202(a)(1)/(b)(1)/(b)(3); state law (consolidates Chabon, Farnsworth, Huckabee)

Getty Images v. Stability AI (UK)
UK High Court · Filed Jan 16, 2023
Decided

Direct copyright; DMCA 1202(a)/(b); Lanham Act; unfair comp.; trademark dilution

Andersen v. Stability AI
NDCA · Filed Jan 13, 2023
active

Direct copyright; inducement; DMCA 1202(a)/(b)(1); Lanham Act; state law

New York Times v. OpenAI & Microsoft
SDNY · Filed Dec 27, 2023
active

Direct copyright; vicarious; contributory; DMCA 1202(b)(1)/(b)(3); Lanham Act (consolidates Daily News, CIR)

Bartz v. Anthropic
NDCA · Filed Aug 19, 2024
Settled

Direct copyright (tentative settlement)

GEMA v. OpenAI and OpenAI Ireland.
Landgericht München I (Munich Regional Court I), 42nd Civil Chamber · Filed 2024-11-13
Decided

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. The court ruled on 11 November 2025 largely i…

Frequently asked questions

Is AI training fair use?

Courts are still deciding. Bartz v. Anthropic (Alsup, J., N.D. Cal. 2025) bifurcated the question: training on legitimately acquired books may be fair use; downloading pirated copies is not. Thomson Reuters v. Ross found training a directly competing product was not fair use.

Which fair-use factors matter most for AI?

Corpus provenance (licensed vs. scraped vs. pirated), transformativeness of model outputs, and market substitution effects on licensing markets are the most influential factors in early AI rulings.

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.