WhatA drop-in Swift/Kotlin SDK that lets mobile app developers add full-duplex, on-device voice conversation to any app without cloud API costs or latency.
SignalThe fact that a 7B speech-to-speech model now runs natively on Apple Silicon signals that on-device voice interaction is crossing the usability threshold, but the tooling to actually ship this in production apps doesn't exist yet.
Why NowNvidia's PersonaPlex 7B running on consumer Apple Silicon via MLX proves the hardware is finally capable, and Apple's push toward on-device AI creates a massive installed base ready for local voice agents.
MarketMobile app developers building customer-facing products (support, commerce, health) — tens of thousands of teams; competes with OpenAI's voice API and LiveKit but differentiated by being fully on-device with zero per-minute costs.
MoatFirst-mover on a curated, optimized model pipeline tuned per-device (M-series chips, iPhone neural engine) creates switching costs once developers build against your SDK and fine-tune for their domain.
Nvidia PersonaPlex 7B on Apple Silicon: Full-Duplex Speech-to-Speech in SwiftView discussion ↗ · Article ↗ · 373 pts · March 5, 2026
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