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Split decision: Magistrate Judge allows deposition of Anthropic CEO Amodei, but also allows Anthropic discovery into Concord Music’s investigation prompts
Read more: Split decision: Magistrate Judge allows deposition of Anthropic CEO Amodei, but also allows Anthropic discovery into Concord Music’s investigation promptsMagistrate Judge Susan van Keulen issued two major rulings on discovery in the Concord Music v. Anthropic case. On balance, this is a huge victory for Anthropic. (1) Anthropic CEO Dario Amodei must sit for 2.5 hours of deposition, potentially via Zoom. (2) But Anthropic gets discovery related to the prompts used on Anthropic’s Claude,…
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Concord Music, Anthropic dispute again over deposing Dario Amodei, CEO
Read more: Concord Music, Anthropic dispute again over deposing Dario Amodei, CEOConcord Music and Anthropic are fighting again over whether Anthropic CEO Dario Amodei should sit for a deposition. DOWNLOAD THE DISCOVERY DISPUTE LETTER
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Magistrate Judge van Keulen orders Anthropic to produce RFP 89 of Concord Music re: dataset(s) with lyrics for 500 works of Concord
Read more: Magistrate Judge van Keulen orders Anthropic to produce RFP 89 of Concord Music re: dataset(s) with lyrics for 500 works of ConcordMagistrate Judge van Keulen largely ruled in favor of Concord Music on 2 of 3 discovery disputes. The third she deferred. The most significant was her ruling on Anthropic’s production of some documents sufficient to show the contents of Anthropic regarding something related to datasets containing the lyrics for the 500 works of Concord Music…
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Anthropic seeks clarification and order requiring Matthew Oppenheim to declare “no one at O+Z or at the Publishers who have had access to Protected Material [of Anthropic] under the Protective Order has used Protected Material to investigate future claims”
Read more: Anthropic seeks clarification and order requiring Matthew Oppenheim to declare “no one at O+Z or at the Publishers who have had access to Protected Material [of Anthropic] under the Protective Order has used Protected Material to investigate future claims”Anthropic is seeking clarification from Magistrate Judge van Keulen on the scope of the protective order. Specifically, “Anthropic seeks an order confirming that the Protective Order in this case, ECF 293, prohibits a receiving party’s use of Protected Material produced in this litigation for any purpose outside of the above captioned litigation, including to investigate,…
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Should Anthropic get discovery of Concord Music’s investigatory prompts and outputs it generated on Claude? Seems relevant to normal use of Claude and its guardrails
Read more: Should Anthropic get discovery of Concord Music’s investigatory prompts and outputs it generated on Claude? Seems relevant to normal use of Claude and its guardrailsAn important discovery dispute is brewing in Concord Music v. Anthropic. Anthropic is seeking discovery of the prompts Concord Music used to investigate for potentially infringing outputs, plus the outputs Concord derived. “Because Publishers’ contentions can only be properly tested and rebutted with a granular understanding of their undisclosed prompts and outputs, Anthropic, Judge Lee,…
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Magistrate Judge van Keulen agrees with Anthropic that it should be allowed interrogatory discovery of Concord Music’s attempts to prompt Claude to produce infringing lyrics
Read more: Magistrate Judge van Keulen agrees with Anthropic that it should be allowed interrogatory discovery of Concord Music’s attempts to prompt Claude to produce infringing lyricsMagistrate Judge van Keulen agreed with Anthropic that it should be allowed discovery into Concord Music’s attempt to get Claude to produce infringing lyrics. The Judge ruled: “The Court hereby GRANTS Anthropic’s request and orders Publishers to disclose to Anthropic (a) the total number of the Publishers’ (or their agents’) prompt-output pairs that are encompassed…
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Judge Lee granted the stipulated extension to allow depositions out of time
Read more: Judge Lee granted the stipulated extension to allow depositions out of timeJudge Lee granted the stipulated extension in Concord Music v. Anthropic: It does not affect the summary judgment motion and trial dates. The hearing on the summary judgment motion(s) will be on June 10, 2026. That likely makes Judge Lee the next in line to have the opportunity to rule on fair use in AI…
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Concord Music, Anthropic spar over meaning of court’s discovery ruling re: Concord’s investigation of outputs
Read more: Concord Music, Anthropic spar over meaning of court’s discovery ruling re: Concord’s investigation of outputsConcord Music and Anthropic disagree on the scope of Magistrate Judge van Keulen’s discovery order related to Concord Music’s investigation of allegedly infringing outputs that were not stopped by Anthropic’s guardrails. Anthropic’s Position: The Court Should Confirm That Its October 12, 2025 Order Requires Publishers To Produce The Same Information For The 15,000 Prompt- Output…
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UMG Recordings seeks to seal confidential business information related to discovery dispute over Suno’s copyright misuse defense
Read more: UMG Recordings seeks to seal confidential business information related to discovery dispute over Suno’s copyright misuse defenseCopyright misuse is a sleeper issue that may be gaining steam. I noted earlier that Anthropic had raised a copyright misuse defense against Concord Music: And now it’s revealed that Suno is seeking discovery of information from UMG Recordings related to Suno’s defense that UMG engaged in copyright misuse. UMG is asking Judge Saylor to…
