Key holding or allegation
An October 2025 decision held that consolidated plaintiffs adequately pleaded an output-based copyright infringement claim; this was not a finding of actual infringement.
Why it matters
Central U.S. consolidated litigation for output/memorisation and training evidence.
Facts
Consolidated authors' actions challenge OpenAI's training uses and alleged reproduction through ChatGPT outputs.
Issues before the court
Whether training and output theories are legally and factually sufficient, including alleged memorisation and substantially similar outputs.
What the court did not decide
No final ruling that training infringes or that challenged outputs are actually infringing.
Procedural timeline
U.S. District Court for the Southern District of New York
Substantive pleading ruling: Consolidated plaintiffs adequately pleaded an output-based copyright infringement claim based on ChatGPT outputs.