ChatGPT reached 664 million mobile daily active users in September 2026, a 7% gain from August and a 69% jump from a year earlier, according to Sensor Tower data cited by Bank of America analyst Justin Post. Gemini recorded 151 million mobile daily active users, an 11% month-over-month rise and a 321% increase year over year. Meta’s new AI agent app, Muse, launched on September 8, climbed to 1.96 million mobile daily users by October 5, running on Meta’s Muse Spark model. These figures confirm a shift in the consumer AI market toward autonomous, agentic systems capable of performing tasks on behalf of users.
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