The Desktop Agent War Begins: Perplexity, OpenAI, and xAI All Ship Tools That Control Your Mac

In a single day, three companies announced products that give AI agents access to local files, native apps, and system-level controls on macOS — making the personal computer the new competitive battleground.

Thursday may be remembered as the day AI agents escaped the browser. Perplexity launched Personal Computer, a Mac app that integrates with local files, native applications, and the browser for what the company calls "secure orchestration" across a user's entire desktop environment. As @perplexity_ai announced, the product turns a Mac mini into an always-on AI agent, a framing that @MacRumors picked up in its coverage. The product is rolling out via waitlist to Max subscribers.

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