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ChatGPT reaches 900 million weekly active users

OpenAI announced that ChatGPT has reached 900 million weekly active users, up 100 million in four months, alongside a record $110 billion funding round valuing the company at $730 billion.

VERIFIEDConfidence: 80%

OpenAI announced that ChatGPT has reached 900 million weekly active users as of February 27, 2026. The milestone represents 100 million new users added in just four months since October 2025, and signals that conversational AI has become a mainstream utility used by roughly 11% of the world's population. The announcement came alongside a record $110 billion funding round led by Amazon, Nvidia, and SoftBank, valuing OpenAI at $730 billion.

This growth matters because it demonstrates unprecedented mainstream adoption of generative AI. For context, it took ChatGPT two years to reach 200 million users when it launched in late 2022. Today's trajectory shows AI moving from experimental technology to essential tool. The company reports that January and February 2026 are on track to be its largest new subscriber months ever, suggesting the user acquisition curve has not yet flattened.

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