In a preliminary ruling, a US judge orders Perplexity to stop using its Comet browser for purchases on behalf of users, and to destroy copies of Amazon's data
Perplexity AI Inc. must for now stop using its Comet web browser agent to make purchases on behalf of shoppers …
Context & Ripple Effects
Amazon's challenge followed a cease-and-desist and lawsuit alleging improper access by Comet, turning an AI-browser feature into a dispute over who controls purchasing activity on a marketplace.
The ruling lands after Perplexity expanded Comet from its initial paid launch, making the browser a broader consumer-facing product rather than a narrowly distributed experiment.
First-order effects
- Perplexity must pause Comet purchases made for users on Amazon and destroy copies of Amazon data covered by the preliminary order, removing that workflow from the product for now.
- Amazon gains immediate protection against the disputed agent-mediated shopping activity while the underlying case proceeds.
Second-order effects
- Other AI-browser and shopping-agent providers now have a clearer incentive to seek explicit marketplace permission, or constrain autonomous checkout features, when operating through user accounts.
- Marketplaces can point to this dispute when setting technical and contractual limits on agents, increasing the value of approved integrations over browser-driven access.
Third-order effects
- If similar disputes produce consistent outcomes, agentic commerce is likely to develop around permissioned access and platform partnerships rather than agents acting independently on consumer credentials.
- The later appeals-court pause of the earlier block shows the governing boundary remains unsettled; litigation may shape product design before a durable market standard emerges.
The trend: Agentic commerce is moving from browser automation toward permissioned, platform-governed access as marketplaces test the limits of third-party purchasing agents.