Comment by Kim_Bruning

What someone at Anthropic did was download libgen once, then Anthropic figured "wait a minute, isn't that illegal?" , so instead they went and bought 7 million books for real and cut them up to scan them.

Turns out this doesn't quite mitigate downloading them first. (Though frankly, I'm very much against people having to buy 7 million books when someone has already scanned them)