Monday, Sep 7, 2026 The claims desk. Receipts included. POWERED BY LENZ
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ChatGPT reached an estimated 100 million monthly users in two months.

The Claim

ChatGPT's growth to 100 million monthly users within two months was the fastest adoption of any consumer application in history.

The Short Version

ChatGPT did reach an estimated 100 million monthly active users roughly two months after launch and was considered the fastest-growing consumer application at that time. The enduring historical superlative is outdated because Threads later reached 100 million registered users in five days. Those measurements are not perfectly equivalent, but the claim supplies no qualification preserving ChatGPT’s former record.

Caveats

  • The 100 million figure was a third-party estimate, not a confirmed OpenAI user count.
  • ChatGPT held the widely reported adoption record in January 2023, not indefinitely.
  • Comparisons with Threads mix monthly active users with registered-user or signup counts.

The Receipts

  1. ChatGPT sets record for fastest-growing user base - analyst note | Reuters

    reuters.com

  2. The ChatGPT (Generative Artificial Intelligence) Revolution ...

    pmc.ncbi.nlm.nih.gov

  3. How ChatGPT Managed to Grow Faster Than TikTok or ...

    time.com

  4. ChatGPT sets record for fastest-growing user base - analyst note | Euronews

    euronews.com

  5. ChatGPT is growing faster than TikTok

    cbsnews.com

  6. ChatGPT reaches 100 million users two months after launch

    theguardian.com

  7. FACTBOX - ChatGPT turns 2: Evolution of groundbreaking AI chatbot

    aa.com.tr

  8. ChatGPT May Be Fastest Growing App in History, UBS ...

    businessinsider.com

  9. ChatGPT sets record for fastest-growing user base in history, report says - Ars Technica

    arstechnica.com

  10. ChatGPT just became the fastest-growing 'app' of all time | ZDNET

    zdnet.com

+ 25 more sources — see the full list on Lenz

Filed Under

ChatGPTOpenAI

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