I'm not sure if writers are following the Anthropic settlement or not however, in November 2025, a District Court found that Anthropic had infringed on authors’ copyrights by downloading published work from Library Genesis and Pirate Library Mirror, online datasets of pirated materials.
The settlement established a fund of about $1.5 billion to pay authors and publishers approximately $3,000 per work. The Atlantic published a database search as part of their great AI Watchdog project.
Some of my favorite Black author's work have unfortunately been trained using Anthropic's AI models. Here's the link to Lit Hub's article, I'll also post the link to the Atlantic's database search for your perusal.