-
Concord Music opposes Anthropic’s sealing request re 2 datasets and user prompts’ information
Read more: Concord Music opposes Anthropic’s sealing request re 2 datasets and user prompts’ informationConcord Music filed its opposition to Anthropic’s request to seal the names of 2 datasets it used to train its model Claude, and user prompt-related information.
-
Anthropic’s Tempest in a Teapot: Concord Music asks judge to strike Olivia Chen declaration on statistical sampling due to AI-generated fake citation
Read more: Anthropic’s Tempest in a Teapot: Concord Music asks judge to strike Olivia Chen declaration on statistical sampling due to AI-generated fake citationA tempest in a teapot is brewing for Anthropic. After Concord Music called out the declaration of Anthropic’s data scientist Olivia Chen for including a citation to a source that doesn’t exist (based on the putative authors and the putative article title), Magistrate Judge Susan van Keulen ordered Anthropic to provide an explanation. Anthropic’s attorney,…
-
Anthropic’s attorney from Latham: fictitious source was “an honest mistake” due to Latham’s using Claude to format the citations.
Read more: Anthropic’s attorney from Latham: fictitious source was “an honest mistake” due to Latham’s using Claude to format the citations.Ivana Dukanovic, an associate from Latham & Watkins, the attorney for Anthropic in the lawsuit filed by Concord Music, is taking the blame for the erroneous citation of an article that does not exist, to support the analysis of Anthropic’s own data scientist, Olivia Chen. That article was cited as [bold added to indicate the…
-

Anthropic’s own data scientist submits declaration apparently with hallucinated citation. Oh my.
Read more: Anthropic’s own data scientist submits declaration apparently with hallucinated citation. Oh my.Apparently, the hallucinations keep rolling. At today’s discovery hearing in Concord Music v. Anthropic, the lawyer for the plaintiffs informed the court of their suspicion that Anthropic’s declaration on statistical sampling from their own data scientist Olivia Chen contained a citation to a fake source on p. 3, as highlighted below: According to Annelise Levy,…
-
Anthropic files motion to dismiss Concord Music’s first amended complaint
Read more: Anthropic files motion to dismiss Concord Music’s first amended complaintIn Concord Music v. Anthropic, Anthropic filed a motion to dismiss the First Amended Complaint. The hearing is set for July 30, 2025 at 10:00 AM in San Jose, Courtroom 7, 4th Floor before Judge Eumi K Lee.
-
Parties in Concord Music v. Anthropic dispute sampling protocol for Claude prompts and outputs
Read more: Parties in Concord Music v. Anthropic dispute sampling protocol for Claude prompts and outputsInteresting battle over the sample size related to getting Claude prompts and outputs related to the music publishers’ copyrighted lyrics. Plaintiffs: “Publishers’ proposed 24.5-million-record sample will better allow the Parties to analyze both frequent and infrequent occurrences alike, ensuring any conclusions derived from the sample are more reliable and precise.” Anthopic: Proposes a random sample…
-
Concord Music, Anthropic disagree over sealing parts of First Am. Complaint
Read more: Concord Music, Anthropic disagree over sealing parts of First Am. ComplaintThe parties in Concord Music v. Anthropic dispute whether parts of the First Amended Complaint should sealed. DOWNLOAD THE BRIEFS:
-
Music publishers Concord Music file amended complaint v. Anthropic. Adds new allegations of third party users generating lyrics on Claude.
Read more: Music publishers Concord Music file amended complaint v. Anthropic. Adds new allegations of third party users generating lyrics on Claude.Concord Music filed a First Amended Complaint against Anthropic. The amended complaint adds approximately 13 new pages, with allegations of third-party users (real world) generation of infringing copies of the copyright holders’ lyrics through Anthropic’s AI model Claude. Excerpts of the new allegations by music publishers: DOWNLOAD THE FIRST AMENDED COMPLAINT:
-
Anthropic scores dismissal of secondary liability, DMCA CMI claims of Concord Music. Judge Lee grants leave to amend.
Read more: Anthropic scores dismissal of secondary liability, DMCA CMI claims of Concord Music. Judge Lee grants leave to amend.Anthropic just scored a decent victory at the motion to dismiss stage. Judge Lee granted Anthropic’s motions to dismiss the music publishers Concord Music and others’ claims against Anthropic
-
Magistrate Judge Van Keulen decides discovery disputes in Concord Music v. Anthropic
Read more: Magistrate Judge Van Keulen decides discovery disputes in Concord Music v. AnthropicIn Concord Music v. Anthropic, Magistrate Judge Van Keulen resolved some discovery disputes: