Meta launched Muse Agent on September 8, 2026 — a personal AI agent that lives inside WhatsApp, Instagram DM, and the Meta AI glasses, and runs in a dedicated 'Secure VM' on top of the Muse Spark model. Marketers didn't get a launch deck; they got a new default inside the surfaces they already pay to reach customers on. Here's the routing principle for which marketing jobs to give it, which to keep on other tools, and what to watch this quarter.
Build one 8-slide carousel, generate four different cover openers with Claude, A/B test them for a month, and let the data name the winner — a step-by-step hook-test protocol I now run on every carousel.
A practical 7-step workflow for using Midjourney to build a 10-slide Instagram carousel that reads as one brand — reference image set, fixed prompt prefix, variable suffix, type system, grid, and the quality gate.
