A U.S. federal judge granted Amazon a preliminary injunction against Perplexity AI to temporarily block its Comet browser agent. The court order prevents the AI tool from making purchases on password-protected Amazon accounts.
The court sided with Amazon’s argument that Perplexity accessed its site without authorization. This activity violated computer fraud laws and the platform's terms of service.
Amazon filed the lawsuit in November 2025, alleging Perplexity disguised its AI agent as a standard Google Chrome browser. The company claimed this covert access created security risks and interfered with the customer experience.
Perplexity argued that Amazon’s motives were to protect advertising revenue and block competition. The AI firm stated that its agents do not view ads, which threatens Amazon's business model.