Overview
- Perplexity rolled out Hybrid Compute for its Mac app on Tuesday, September 1, 2026, with tasks starting in the cloud and sensitive steps moved to models running on the user’s Mac.
- A local Privacy Gate scans prompts on the Mac for names, addresses, account numbers, and other PII and can mask data, keep processing local, refuse the action, or ask the user for consent before anything is sent to the cloud.
- Perplexity published its on-device PII classifier as open source and launched a new benchmark called PII-TRACE to measure detector performance and reproducibility.
- At launch users can choose between Gemma E4B, Qwen3.6 variants and a Perplexity-tuned Qwen3.6 for on-device work, but the feature requires Apple silicon Macs with at least 24 GB unified memory and is available to Pro/Max subscribers and enterprise customers; tokens generated locally are not billed.
- Journalists note unanswered technical questions about what context is shared between cloud and local models and urge independent testing because Perplexity has past data-handling controversies that could affect trust and enterprise adoption.