Wait, was Perplexity really caught swapping models?
Factually yes, with the appropriate caveats. In spring 2026 multiple independent reports, covered across the technical press and discussed extensively on the developer-news circuit, publicly documented that paying Perplexity Pro subscribers were being routed to cheaper backend models while the in-app model switcher continued to display the more expensive model as active. Perplexity acknowledged the routing behaviour and corrected it after the coverage, which is the correct response to a customer-experience issue. The reason it matters for this comparison is not that Perplexity behaved badly, they fixed the issue once it was public, but that the incident made a structural property of the consumer-AI subscription category legible: at the $20/month tier there is currently no protocol-level way for a user to verify which model handled their request. Personal Agent does not solve that fully either: GET /v1/attestation proves that the instances serving our models are TDX guests, but replies carry no attestation, so it cannot prove which model wrote a given reply.