Claude maker Anthropic's use of copyright-protected books in its AI training process was "exceedingly transformative" and fair use, US senior district judge William Alsup ruled on Monday. It's the first time a judge has decided in favor of an AI company on the issue of fair use,

In a test case for the artificial intelligence industry, a federal judge has ruled that AI company Anthropic didn’t break the law by training its chatbot Claude on millions of copyrighted books.

Training Claude on copyrighted books it purchased was fair use, but piracy wasn't, the judge ruled.