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Perplexity AI Updates: September 15, 2026

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1. Perplexity Brought Its Agent Fully On-Device With Portable Computer for Windows

Perplexity. Portable Computer is the local build of Perplexity Computer, planning and executing multistep tasks entirely on the machine so files and credentials stay on the device. It ships with Qwen 3.8 27B, post-trained specifically to drive Perplexity Computer, and includes a built-in browser and sandbox. Cited use cases include reviewing GitHub pull requests, analyzing financial documents for tax optimization, and finding drop-offs in startup funnel metrics. It requires a GeForce RTX or RTX PRO system with at least 24 GB of VRAM and joins existing Linux and DGX Spark support. Source