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Carreyrou v Anthropic PBC

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Case Information
Case name Cambronne, Inc. et al. v. Anthropic PBC (originally Carreyrou et al.)[1]
Court U.S. District Court for the Northern District of California[1]
Docket 5:25-cv-10897-PCP[1]
Filed December 22, 2025[2]
Judge(s) P. Casey Pitts[3]
Plaintiffs Cambronne, Inc.; Lisa Barretta; Philip Shishkin; Matthew Sacks; Michael Kochin (June 30 amended complaint)[1]; Shishkin dismissed all his claims against Anthropic with prejudice on July 27, 2026.[4]
Defendants Anthropic PBC (remaining defendant after severance)[1]
Case type Civil action by individual plaintiffs[1]
Claims / issues Copyright infringement involving books acquired and used for Claude[1]
Status September 24, 2026: Anthropic filed a consolidated motion to dismiss in five related actions, noticing a December 17, 2026 hearing. The parties selected mediation in an October 1 stipulation; the October 2 order’s full terms remain unverified.[5][6][7]

Carreyrou et al. v. Anthropic PBC et al. (No. 5:25-cv-10897-PCP) is a copyright action filed December 22, 2025, in the Northern District of California. The July 2, 2026 public docket snapshot lists Anthropic as the remaining defendant following severance orders.[2]


June 8, 2026 severance order left Anthropic alone in this action; the second amended complaint was filed June 30, 2026. The September 14 case-management order subsequently set discovery and pretrial deadlines for this action and four related Anthropic cases.[7][3][1]

Background

John Carreyrou and other authors pursued separate claims after opting out of the Bartz settlement. Their action originally included several AI companies.[8]

Procedural history

  • March 27, 2026: A separate case for the severed OpenAI defendants was opened as No. 5:26-cv-02730-PCP.[2]
  • April 27–29, 2026: Judge P. Casey Pitts severed Meta; its separate case opened as No. 5:26-cv-03725-PCP.[2]
  • June 8, 2026: ECF 195 granted severance motions and dismissed Google, xAI, Perplexity, Apple and NVIDIA from this case. This was a severance disposition, not a ruling that their alleged copying was lawful.[2]
  • July 27, 2026: Philip Shishkin voluntarily dismissed all his claims against Anthropic with prejudice and without costs or attorneys’ fees to any party, under Rule 41(a)(1)(A)(i).[4]

September 14, 2026 case-management order

Judge P. Casey Pitts set a common schedule for Cambronne, Cognella, Chicken Soup for the Soul, Cruz and Kwon’s related Anthropic actions. Fact discovery closes May 13, 2027, which is also the deadline for non-expert summary-judgment motions. ADR completion and opening expert reports are due June 14, closing expert reports July 14, and expert discovery closes August 13, 2027. Dispositive and Daubert motions are due August 26, 2027.[7]

A joint statement of trial availability is due January 4, 2028, followed by a trial-setting conference January 11. The order directs parties to select an ADR process by October 1, 2026 and refers discovery disputes to the assigned magistrate judge. Schedule modifications require a court order for good cause, with requests submitted before the affected deadline.[7]

September 24 dismissal motion and October 1 mediation stipulation

Anthropic filed a consolidated motion to dismiss the operative complaints in Cambronne and the four related actions on September 24, 2026, under Rules 12(b)(1) and 12(b)(6). Its notice schedules argument before Judge Pitts at the San Jose courthouse on December 17, 2026 at 10 a.m.[5]

Anthropic argues that the claims are time-barred and challenges the pleading of BitTorrent distribution, Claude-output infringement, contributory infringement and copyright-management-information removal. It also seeks dismissal or limits on particular works based on the Bartz release, ownership and joinder, publication dates, copyright-registration timing and identification of the works in suit. These are the defendant’s grounds for dismissal; the motion requests a ruling on them.[5]

On October 1, the parties filed a stipulation selecting mediation and requesting an ADR-session deadline of June 14, 2027. The filed form bears counsel’s signatures and leaves the judicial approval fields blank.[6]

The public RECAP docket reviewed October 11 lists an October 2 order on the mediation stipulation, but offers its body only through PACER. Its full terms and any subsequent PACER activity remain to be verified; the public reproduction is not proof that later filings are absent.[9]

Relationship to Bartz v. Anthropic

In the separate Bartz class action, Judge Araceli Martínez-Olguín granted final approval of the $1.5 billion settlement and entered judgment on July 20, 2026, following the May 14 hearing. That judgment concerns the class settlement; it does not resolve this separate opt-out action.[10][8]

See Also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Court filing / case record, reviewed September 7, 2026
  2. ↑ 2.0 2.1 2.2 2.3 2.4 N.D. Cal., Carreyrou v. Anthropic, No. 5:25-cv-10897-PCP, court docket entries reproduced by Justia; snapshot retrieved July 2, 2026
  3. ↑ 3.0 3.1 Court filing / case record, reviewed September 7, 2026
  4. ↑ 4.0 4.1 N.D. California, Cambronne, Inc. v. Anthropic PBC, No. 5:25-cv-10897-PCP, ECF 210, July 27, 2026, Philip Shishkin’s voluntary-dismissal notice (3 pages), complete original body reviewed October 11, 2026.
  5. ↑ 5.0 5.1 5.2 N.D. California, Cambronne, Inc. v. Anthropic PBC, No. 5:25-cv-10897-PCP, ECF 228, September 24, 2026, Anthropic’s consolidated motion to dismiss (36 pages), complete original body reviewed October 11, 2026.
  6. ↑ 6.0 6.1 N.D. California, Cambronne, Inc. v. Anthropic PBC, No. 5:25-cv-10897-PCP, ECF 229, October 1, 2026, stipulation and proposed order selecting mediation (1 page), complete original body reviewed October 11, 2026.
  7. ↑ 7.0 7.1 7.2 7.3 N.D. California, Cambronne, Inc. v. Anthropic PBC, No. 5:25-cv-10897-PCP, ECF 227, September 14, 2026, case-management order (3 pages), complete original body reviewed October 11, 2026.
  8. ↑ 8.0 8.1 Authors Alliance, “AI Class Action Litigation Update (Books),” January 27, 2026
  9. ↑ CourtListener/RECAP, public docket page 3, entry 230; reviewed October 11, 2026.
  10. ↑ N.D. Cal., Bartz v. Anthropic, No. 4:24-cv-05417-AMO, ECF 680, final approval order and judgment, July 20, 2026
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