Anthropic’s Cowork docs describe Dispatch, a background agent in Claude Desktop that splits one request into child tasks, runs each as its own session and forwards permission prompts to you, even from your phone.
Meta’s Muse runs in its own secure cloud VM, takes requests in WhatsApp or the Muse app, and asks before sending email or buying; a separate Sentinel agent must approve anything it sends to the internet.
Grok Bot launched in beta in August 2026: always-on agents with their own cloud computer that sign in to your apps, learn routines by watching you, and come back when something needs your approval.