ChatGPT hits 1 billion monthly users, fastest app ever despite growing AI backlash

Reviewed byNidhi Govil

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OpenAI's ChatGPT reached one billion monthly app users in May, becoming the fastest app ever to hit this milestone in just 3.5 years. The achievement comes as public sentiment toward AI technology sours, with competitors like Claude and Meta AI posting triple-digit year-over-year growth rates that far exceed ChatGPT's 62% increase.

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ChatGPT becomes fastest app to reach 1 billion users

OpenAI's ChatGPT reached one billion monthly active users in May, achieving this milestone in roughly 3.5 years after its November 2022 launch, according to market intelligence firm Sensor Tower

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. This makes ChatGPT the fastest app to reach 1 billion users, surpassing the previous record holder Google Maps, which took around five years to hit the same volume of usage

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. The achievement signals that global AI adoption surges even as voices ranging from the Pope to technology companies warn about the risks of unmitigated AI development.

OpenAI reported in February that ChatGPT saw more than 900 million weekly active users across web and mobile platforms and claimed it had more than six times the monthly web visits and mobile sessions of the next largest AI platform

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. Despite this commanding lead, the market dynamics are shifting rapidly as competitors gain ground.

Rivals post explosive user growth amid souring public AI sentiment

While ChatGPT maintains its position as the market leader, competing AI models are closing the gap at an accelerated pace. Monthly usage of Claude from Anthropic rose by 640% year-over-year, while Meta AI experienced a staggering 973% increase, compared to ChatGPT's more modest 62% growth

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. According to Sensor Tower, OpenAI's market-leading large language model was trailed by offerings from Google's Gemini, ByteDance's Doubao and its overseas variant Dola, as well as Claude.

Abe Yousef, Sensor Tower's senior insights analyst, told CNBC that user growth of ChatGPT's competition has been driven by tangible model improvements and more positive market sentiment

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. This shift reflects a broader AI backlash that has emerged despite record usage numbers, creating a paradox where adoption and criticism rise simultaneously.

Pentagon deal triggers consumer backlash and app uninstalls

Public unease toward AI adoption became particularly visible following OpenAI's February deal with the U.S. Department of Defense to deploy its models on classified Pentagon networks. ChatGPT uninstalls surged around 295% day-on-day on February 28, the day after OpenAI announced its Pentagon agreement. The consumer backlash prompted CEO Sam Altman to promise additional safeguards to prevent government use of the technology for surveillance of U.S. citizens

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Anthropic gained a significant boost from sentiment toward ChatGPT during this period. Claude soared to the App Store's top spot that same weekend, outpacing ChatGPT by U.S. downloads for the first time, after Anthropic refused involvement in Pentagon operations

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. Anthropic has refused to let the government use its models for mass domestic surveillance and fully autonomous weapons, though it was recently reported that the NSA is using Claude Mythos for offensive cyber operations

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Public listings signal maturation of AI market

Both Anthropic and OpenAI have recently begun proceedings for widely anticipated public listings, with Sam Altman's OpenAI submitting its IPO filing Monday afternoon, hot on the heels of Anthropic, which filed its IPO prospectus with the U.S. Securities and Exchange Commission a week earlier

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. These moves come as the AI industry faces growing scrutiny over job losses, data center expansion, and concerns about unregulated development. The timing of these public listings will test investor appetite for AI companies amid this complex landscape where usage metrics remain strong but public sentiment continues to deteriorate.

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