Amazon Injunction Against Perplexity AI Overturned by US Court

## Catalyst Analysis: Court Vacates Amazon Injunction Against Perplexity AI On August 5, 2026, a U.S. appeals court vacated a preliminary injunction that had prohibited Perplexity AI from utilizing its AI-powered Comet browser on Amazon's platform. The U.S. Court of Appeals for the Ninth Circuit determined that Amazon was unlikely to prevail in its assertions that Perplexity’s AI agents violated federal and California computer access laws.

The panel reasoned that Perplexity itself did not directly access Amazon’s computer systems. Instead, the court viewed Perplexity’s AI Assistant as a tool operating under user instructions to facilitate tasks, including shopping on Amazon. The court found that Amazon was unlikely to succeed on claims under the Computer Fraud and Abuse Act (CFAA) and California’s Comprehensive Computer Data Access and Fraud Act (CDAFA).

Furthermore, the judges concluded that other prerequisites for granting a preliminary injunction, such as irreparable harm, the balance of equities, and public interest, favored Perplexity. The court noted that an injunction would impose an unwarranted burden on Perplexity and could stifle the advancement of nascent AI technologies.

Amazon initiated the lawsuit in November 2025, alleging breaches after objecting to the AI agent's interface with its e-commerce site. A district court had initially granted Amazon a preliminary injunction in March 2026, but the Ninth Circuit later stayed this order pending review.

This ruling is specifically limited to the existing factual record and does not establish broader legal precedents for agentic AI or potential liabilities in different scenarios. The case has been remanded to the U.S. District Court for the Northern District of California for further proceedings.

## Impact on Retail Technology and E-commerce ### Winners, Losers & Uncertainty The decision offers a reprieve for AI-driven technology companies like Perplexity, potentially encouraging further development and integration of AI assistants into online shopping experiences. For Amazon, the ruling suggests a need to re-evaluate its legal strategies concerning AI agent interactions with its platform. The broader implications for e-commerce platforms and AI developers remain subject to further legal proceedings and evolving regulatory landscapes.

### Risk Watch — Legal and Timeline The case is sent back to the district court, indicating that the legal dispute is not fully resolved. Further proceedings will determine the ultimate outcome regarding Amazon's claims and potential future legal frameworks for AI interactions on e-commerce sites.