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Amazon.com Services LLC v Perplexity AI Inc

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Case Information
Case name Amazon.com Services, LLC v. Perplexity AI, Inc.[1]
Court N.D. Cal.; Ninth Circuit on appeal.[1]
Docket 3:25-cv-09514-MMC; appeal 26-1444.[1]
Filed November 4, 2025.[2]
Judge(s) Maxine M. Chesney (district court); Milan D. Smith Jr., Eric C. Tung and John Charles Hinderaker (appeal).[1]
Plaintiffs Amazon.com Services, LLC.[1]
Defendants Perplexity AI, Inc.[1]
Case type Civil computer-access litigation.[1]
Claims / issues CFAA and California CDAFA claims concerning the Comet AI Assistant.[1]
Status September 10, 2026: rehearing en banc denied.[3]

Amazon.com Services, LLC v. Perplexity AI, Inc. concerns Amazon’s claims that Perplexity’s Comet AI Assistant violated federal and California computer-access laws.[1]

Preliminary-injunction appeal

On August 4, 2026, the Ninth Circuit vacated the preliminary injunction and remanded. It concluded that Amazon was unlikely to establish that Perplexity itself accessed Amazon’s computers for CFAA purposes. The decision concerned preliminary relief, not a final dismissal of the lawsuit.[1]

September 10, 2026 rehearing order

The court denied rehearing en banc. Judges Smith and Tung voted against rehearing, and Judge Hinderaker recommended denial; no judge requested a full-court vote. The order also granted leave to file an amicus brief.[3]

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 Ninth Circuit, No. 26-1444, opinion, August 4, 2026, pp. 1, 5, 8.
  2. ↑ Amazon.com Services, LLC v. Perplexity AI, Inc., No. 3:25-cv-09514-MMC, complaint, ECF 1, court filing stamp November 4, 2025.
  3. ↑ 3.0 3.1 Ninth Circuit, No. 26-1444, ECF 71.1, order denying rehearing en banc, September 10, 2026.
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