Julian Goldie SEO: Perplexity Just Open-Sourced Its Local AI Engine

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Perplexity just open-sourced Lily, the local AI engine quietly beating Apple's own tool at running models on Mac — up to 35% faster, same accuracy. Here's how it works, the real hardware requirements, and why local AI just got a lot more useful.

00:00 Hook – Software was Mac's real bottleneck, not hardware
00:34 Lily Explained – Perplexity open-sources its local AI engine
00:57 Hybrid Compute – Splits cloud + on-device tasks for privacy
02:25 Prefill vs Decode – Why Lily beats general-purpose tools
03:04 Under the Hood – 35B params, Rust, Apple Metal
03:31 Benchmarks – Up to 35% faster than Apple's own tool
04:17 The Catch – Needs 32GB RAM Apple Silicon Mac
05:07 Easy Mode – One-click model picker, no setup needed
05:58 Takeaway – Local AI is finally fast enough to matter