Sony Music opts out of AI training for its entire catalog

Enlarge / The Sony Music letter expressly prohibits artificial intelligence developers from using its music — which includes artists such as Beyoncé. (credit: Kevin Mazur/WireImage for Parkwood via Getty Images)

Sony Music is sending warning letters to more than 700 artificial intelligence developers and music streaming services globally in the latest salvo in the music industry’s battle against tech groups ripping off artists.

The Sony Music letter, which has been seen by the Financial Times...