Sarah Silverman leads copyright lawsuit against AI giants over unauthorized use of books

Comedian Sarah Silverman and authors filed lawsuits against OpenAI's ChatGPT and Meta's LLaMA AI models.
Lawsuits allege the AI models used copyrighted books without permission to train themselves.
Authors argue ChatGPT's ability to summarize books shows infringement.
OpenAI and Meta accused of using "shadow libraries" with pirated books.
Authors seek damages and changes to AI models in class action copyright cases.