Penguin Random House Sues OpenAI — ChatGPT Allegedly Cloned a German Children's Book
Penguin Random House has filed a copyright lawsuit against OpenAI in a Munich court, alleging that ChatGPT reproduced Ingo Siegner's beloved German children's book series — "Der kleine Drache Kokosnuss" (The Little Dragon Coconut) — almost verbatim. The case was triggered when a user prompted ChatGPT to write a children's story featuring Coconut the Dragon on Mars, and the output reportedly contained the original character, two sidekicks, even a cover image and back-cover blurb that were virtually indistinguishable from the published work.
The lawsuit marks one of the first major publisher copyright actions filed in Germany, where courts operate under a stricter legal framework than U.S. fair use doctrine. It joins a growing pile of suits against OpenAI from The New York Times, Getty Images, and music rights holders — but Germany's legal landscape could make this one particularly consequential. A ruling in Munich could establish binding precedent across the EU, where regulators have already been far more aggressive about AI model accountability than their American counterparts.
For the broader AI industry, the case crystallizes a tension that has been building since the generative AI boom began: frontier models trained on vast corpora of copyrighted text are beginning to surface in ways that courts — and juries — can actually see. A children's book reproduced on command is a far more concrete illustration of alleged infringement than statistical claims about training data weights, and that concreteness may prove to be a problem for OpenAI in European courts.