It's only ridiculous for the big thieves, but if you violate copyright, you'll pay dearly. Calling it ridiculous will not protect you.
Always better to name them outright.
Anthropic STOLE data for training. Verifiably. Admitted. In court. Then settled.[0]
You can also likely assume that OpenAI did too. There simply wasn’t enough data without having done so at least at some point in their corporate history. In fact, I seem to recall they were able to extract Harry Potter text from all the major modes[1]
https://fortune.com/2026/07/21/anthropic-copyright-settlemen... [0]