Meta’s Muse AI agent can now shop on users’ behalf at Walmart, Gap and Best Buy, extending its reach across groceries, apparel and electronics. Launched on September 8, 2026, Muse is Meta’s first standalone personal AI agent and can also send emails, book reservations, fill out forms and make purchases. It operates inside the Muse Secure VM (a protected virtual environment) and runs on Muse Spark 1.3, which has a one-million-token context window. Muse uses Stripe Link for payments and generates single-use cards for each transaction, while Meta has also partnered with Shopify and PayPal. The service is available to US adults aged 18 and older, with a free tier and paid Power and Maximum plans priced at $20 and $100 per month. Users can access it through a dedicated app, the web and WhatsApp, while AI glasses functionality is reportedly planned. The app drew between 2.5 million and 2.8 million downloads during its first two weeks and ranked first or second on the US iOS App Store charts. Alexandr Wang, who joined Meta from Scale AI in 2025 and serves as Chief AI Officer, has promoted Muse through social media and television advertising, including the #MuseMoneyChallenge. The expansion puts Meta in competition with Amazon and Google Shopping by positioning an AI agent between consumers and retailers. Meta’s projected AI infrastructure spending of more than $130 billion for the year highlights the scale of its investment, while a future model codenamed Watermelon is set to succeed Spark 1.3.