Perplexity Seeks Dismissal of Amazon AI-Agent Suit After Appeals Court Ruling

Perplexity says its Comet assistant acts for the user who directs it, not for the company. The argument tests how far a narrow appellate ruling can reach in a fight over AI agents visiting websites.

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Perplexity Seeks Dismissal of Amazon AI-Agent Suit After Appeals Court Ruling
Perplexity Seeks Dismissal of Amazon AI-Agent Suit After Appeals Court Ruling

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Perplexity is asking a U.S. judge to throw out Amazon’s lawsuit over Comet, its AI shopping agent, arguing that an appeals court has already answered the case’s central question: who is actually accessing Amazon’s website? Amazon sued in November 2025 under the federal Computer Fraud and Abuse Act, known as the CFAA, and California’s Comprehensive Computer Data Access and Fraud Act, or CDAFA. Amazon says Comet’s activity violates those laws. Perplexity says it does not. The company is relying on an August fourth ruling from the Ninth Circuit, which vacated an injunction blocking the technology and sent the case back for further proceedings. That court found that the user’s browser—not Perplexity—communicated with Amazon’s servers. Comet ran through the customer’s local browser, sent screenshots from the customer’s computer to Perplexity, and received navigation instructions in return. The court described the Assistant as “a tool, not a person” for the access question. But the ruling was fact-specific, not a broad exemption for AI agents. Amazon can still argue that Perplexity had more direct control, handled credentials, initiated activity itself, or bypassed technical restrictions. And the court left open a separate path: Amazon may enforce restrictions through its private terms of service. The next test is whether Comet’s real-world architecture matches the narrow facts that supported the appellate ruling.

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3 key points

The case could establish whether an AI provider “accesses” a website when its agent operates through a customer’s local browser. Perplexity is seeking dismissal of Amazon’s CFAA and California anti-hacking claims, relying on an August 4 Ninth Circuit ruling that vacated an injunction and found the user’s browser communicated with Amazon. The ruling was fact-specific, leaving exposure if Perplexity directly connects,...

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    Amazon sued Perplexity in November 2025 under the federal CFAA and California’s CDAFA.

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    The Ninth Circuit said Comet’s Assistant was “a tool, not a person” for the access issue before it.

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    Comet sent screenshots from the user’s computer to Perplexity and received navigation instructions in return.

Perplexity is asking a U.S. judge to dismiss Amazon’s lawsuit over its Comet shopping agent, arguing that an appeals court has already resolved the case’s central access question in its favor. The motion turns a narrow ruling about a user’s browser into an early test of whether platforms can use anti-hacking laws to control AI agents acting at a customer’s direction.

Amazon sued Perplexity in November 2025 under the federal Computer Fraud and Abuse Act and California’s Comprehensive Computer Data Access and Fraud Act. Amazon alleges that Comet’s shopping agent violates those laws; Perplexity now argues Amazon cannot show the unauthorized access the statutes require.

The ruling Perplexity is relying on

The Ninth Circuit vacated a preliminary injunction on August 4 that had barred Perplexity from using its agentic browser technology on Amazon.com, and sent the case back for further proceedings. On the record before it, the court held that the user’s browser, rather than Perplexity, communicated with Amazon’s servers and accessed Amazon’s computers.

This case asks whether a dominant online platform can turn a criminal hacking statute into a tool for policing how its customers use the internet.

Perplexity, in its dismissal argument

Perplexity’s position rests on Comet’s architecture. Its Assistant ran through the user’s local browser, sent screenshots from that computer to Perplexity’s servers, then received navigation instructions back from those servers. That did not establish that Perplexity itself had entered Amazon’s servers, according to the appellate court’s analysis.

A decision about access, not a blanket pass

The ruling did not treat the Assistant as a separate legal actor. For the CFAA access provision, the court called it “a tool, not a person.” But that conclusion was tied to the facts before the court, not a general exemption for AI agents or their providers.

The Ninth Circuit expressly left open whether Perplexity might face liability if the provider exercised greater control, communicated directly with Amazon’s servers, independently initiated activity, controlled credentials, or bypassed technical restrictions. Those unresolved possibilities give Amazon room to contest whether its case fits the appellate record Perplexity invokes.

Platform rules remain a separate lever

Even while finding Amazon unlikely to prevail on its existing CFAA and CDAFA theories, the court said Amazon could still regulate agentic access through private terms of service. The immediate legal question, then, is narrower than whether Amazon can set rules for automated shopping: it is whether the anti-hacking claims survive this particular browser design and factual record.

Perplexity’s dismissal request has not settled the lawsuit. Its importance lies in the line it asks the court to enforce: when a user directs an AI tool from a local browser, the provider says the user—not the AI company—is the party accessing the website. The next proceedings will show how firmly that line holds.

Sources

  1. jdsupra.comClient Alert: When an AI Agent Visits a Website, Who Is Really Doing the Accessing? The Ninth Circuit Draws an Early Line Under the CFAA | JD Supra
  2. mlex.comPerplexity AI says appellate ruling dooms Amazon US lawsuit over AI agents | MLex | Specialist news and analysis on legal risk and regulation

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