OpenAI's ChatGPT has reached an estimated one billion global monthly active app users, marking one of the fastest adoption curves in consumer technology history.

ChatGPT Hits 1 Billion Monthly Users Faster Than TikTok, Instagram

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According to estimates from market intelligence firm Sensor Tower, ChatGPT crossed the one-billion monthly active users mark in May — roughly three years after launch, Reuters reported on Tuesday.

The platform has outpaced the growth trajectories of apps including TikTok, Instagram, YouTube and Google Maps.