Perplexity AI Faces Lawsuit Over Alleged Data Sharing With Meta and Google

Perplexity AI is facing a lawsuit that alleges the company shared user data with Meta and Google without adequate disclosure to its users. The complaint, reported by The Decoder, centers on the data practices underlying Perplexity's AI search product — specifically the claim that user search queries, behavioral signals, and engagement data flowed to two of the world's largest advertising platforms without users' meaningful informed consent.

What the Lawsuit Alleges

The core allegation is that Perplexity integrated tracking and analytics infrastructure from Meta and Google into its platform in ways that transmitted user data to those companies. If accurate, this means that users who turned to Perplexity as an AI-native alternative to Google Search may have had their query behavior logged and transmitted to the very platform they were seeking an alternative to.

The legal theory mirrors cases that have succeeded against other consumer technology companies — most notably the wave of litigation targeting Facebook's tracking pixels, which allowed Facebook to receive data about user behavior on third-party sites without those users' knowledge. Applied to an AI search product, the same mechanism raises additional concerns: search queries to an AI assistant are often more revealing than traditional search terms, as users increasingly ask AI systems personal health questions, financial queries, and other high-sensitivity requests that they might phrase more guardedly on a conventional search engine.

Perplexity's Position

Perplexity has not yet issued a formal public response to the specific allegations. The company has previously emphasized its commitment to privacy as a differentiator from traditional search, pointing to its lack of advertising as evidence that it doesn't have the same incentives to monetize user data that Google does. The lawsuit complicates that positioning, regardless of its ultimate legal outcome.

The Broader Sector Context

The case arrives at a consequential moment for AI search. Perplexity has been one of the fastest-growing consumer AI products of the past two years, positioning itself as a more trustworthy and cited alternative to Google for research queries. It has also been the target of criticism from publishers who allege the platform reproduces copyrighted content without adequate attribution or licensing — a set of disputes that remains unresolved.

The data-sharing lawsuit adds a third dimension of legal exposure. Together, the copyright and privacy questions raise a structural issue about whether AI search products can sustain their growth trajectories while the legal frameworks governing their core practices are still being litigated. The outcome of the Perplexity case will be watched closely by every company building AI-native search and discovery products.