As one redditor reflected , the ‘floodgates of Graceland’ opened last week when a group of rightsholders related to musical compositions recorded by Elvis Presley commenced copyright infringement proceedings against Anthropic. Referring to themselves as the ‘Elvis plaintiffs’, they allege that (1) Anthropic used these works to train Claude models without authorisation, and (2) that such models generate infringing output. This Kat is busy picking our her own impersonator for Halloween Photo by Chris Barbalis on Unsplash The complaint Much of this complaint relies upon public filings and decisions concerning Anthropic (e.g. Bartz v. Anthropic – IPKat here and here – and Concord 1 ). It also refers to media reporting and technical documentation about AI training datasets where Anthropic is alleged to have knowledge of the infringing nature of training Claude models and offering them to the public to generate infringing content pursuant to 17 U.S. Code § 106 . Regarding the former, th...