Local AI Goes Mainstream: Perplexity's Zero-Cost Agent, Apple's M5 Ultra Macs, and OpenAI's Jalapeño Chip

Perplexity just launched Portable Computer, a fully local version of its agentic "Computer" platform developed in partnership with Nvidia that runs entirely on user-owned hardware — starting with Nvidia's DGX Spark desktop supercomputer and Linux machines with RTX GPUs. Every task executes on the device by default, consuming zero billing credits, and only escalates to a cloud frontier model when the user explicitly approves. "We've basically brought the exact same UI to a...