Meta’s Muse AI Assistant Reaches 5 Million Downloads in Record Time

Sensor Tower data shows that Meta’s Muse AI assistant surpassed 5 million U.S. downloads within 22 days of its launch, making it one of only 23 apps to achieve that speed. By comparison, OpenAI’s ChatGPT required 56 days, X’s Grok 103 days, and Anthropic’s Claude 492 days to reach the same threshold. Approximately 85 % of the apps that have hit 5 million downloads in a similar window are mobile games; the three non-gaming outliers are Disney+, HBO Max and Threads.

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The rapid uptake coincides with an aggressive internal advertising push. Sensor Tower reports that Meta began ramping ad spend for Muse on September 16, 2026, when downloads spiked 73 % day-over-day. Over the two weeks following that date, Muse captured up to 50 % of Meta’s daily house-ad inventory, displacing Facebook and WhatsApp impressions. The campaign placed Muse among the top 15 U.S. brands by advertising impressions during the week of September 21 through 27.

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Muse offers a free tier and two paid subscriptions—$20 per month for higher usage limits and $100 per month for continuous agent activity. Meta also intends to take small affiliate cuts on purchases, bookings or financial deals the assistant executes, and to charge per-action fees to businesses integrating Muse with platforms such as Zoom, Intuit and Slack. The Wall Street Journal projects that Muse could generate $28.5 billion in revenue for Meta by 2030.

Forbes

Meta’s CEO Mark Zuckerberg described Muse as a step toward delivering “personal superintelligence” across the company’s ecosystem. The rollout has prompted competitive and regulatory reactions: Amazon blocked Muse from making purchases on its site citing security concerns, while OpenAI launched the “Dots” AI agent as a direct competitor.

ForbesMeta’s Muse AI Assistant Surpasses 5 Million Downloads 9to5Mac

• “Meta began to ramp advertising spend for Muse on Wednesday, September 16, 2026, as downloads spiked 73% DoD,” — Sensor Tower

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