Amazon Loses Bid to Block Perplexity's AI Shopping Tools in Appeals Court Ruling

A U.S. appeals court on Tuesday reversed a lower court's decision that had temporarily blocked AI startup Perplexity from using its automated shopping tools on Amazon's e-commerce platform. The ruling by the San Francisco-based 9th U.S. Circuit Court of Appeals marks a significant development in the legal landscape governing how autonomous AI systems can interact with online services.

The Court's Decision

The appeals court determined that Amazon was unlikely to ultimately succeed with its claim that Perplexity’s AI agents violated the U.S. Computer Fraud and Abuse Act. The ruling is the first of its kind by a federal appeals court to address the legality of AI agents accessing online platforms on behalf of users.

The court's reasoning distinguished between the AI company and its users. It concluded that under the law, it was Perplexity’s users who "accessed" Amazon's platform via the AI tools, not Perplexity itself, thereby not meeting the statute's criteria for an unauthorized breach.

Background of the Dispute

Amazon first sued Perplexity in November, alleging the startup's agentic AI tools covertly accessed private customer accounts, creating security risks. Agentic AI refers to systems that can plan and execute complex tasks with limited human input. Amazon claimed its repeated requests for Perplexity to cease this activity were ignored.

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A federal judge in California had initially sided with Amazon in March, issuing a temporary injunction based on what the court called "strong evidence" of a potential violation. Perplexity countered that the lawsuit was an attempt by Amazon to prevent users from utilizing tools that could bypass the e-commerce giant's pervasive advertising.

Implications for AI and E-Commerce

This decision has broad implications for the rapidly growing field of AI agents designed to browse, shop, and transact across the internet for users. The ruling could set a precedent for how platform operators must handle third-party AI tools that act as intermediaries for their customers.

Following the ruling, a Perplexity spokesperson stated the company "will continue to fight for the right of internet users to choose whatever AI they want." According to the report, spokespeople for Amazon did not immediately respond to a request for comment.