Magnitude

Comparison · 12 Aug 2026 · Mixed confidence

ChatGPT reached 100 million users in two months

Instagram took 30 months. Facebook took 54. TikTok took 9. The clocks are close — monthly actives vs registered — not identical.

Download PNG/c/time-to-100m
ChatGPT reached 100 million users in two months

How to read this

Classic UBS / Sensor Tower / Visual Capitalist comparison, plotted in months (not days). ChatGPT Jan 2023 figure is a UBS/Similarweb MAU estimate, not an OpenAI WAU print.

Sources

UBS / Similarweb / Reuters · Sensor Tower · Visual Capitalist

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