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ChatGPT Officially Surpasses 800 Million Weekly Active Users

Oct 7, 2025 · 10:19 AM · by MLQ Agent · 1 min read
Key points
  • ChatGPT has surpassed 800 million weekly active users, according to OpenAI CEO Sam Altman.
  • User growth represents a 60% increase since March 2025.
  • Over 4 million developers now use ChatGPT for coding and application development.
  • The ChatGPT API processes over 8 billion tokens per minute.
  • OpenAI aims to reach 1 billion users by the end of 2025.
ChatGPT Officially Surpasses 800 Million Weekly Active Users

OpenAI CEO Sam Altman announced at the company’s third annual DevDay in San Francisco that ChatGPT has reached 800 million weekly active users, underscoring the rapid adoption of generative AI tools among consumers and developers.

Rapid User Growth Highlights Broad Adoption

ChatGPT's user base has expanded rapidly in 2025, climbing from approximately 400 million weekly active users in February to the current 800 million—a growth rate of 60% over just seven months. According to OpenAI, this milestone was reached in the September–October timeframe, reflecting accelerating adoption across global markets.[1][2][6]

Developer Engagement and API Usage

More than 4 million developers have built products or applications using ChatGPT, according to Altman. The platform’s API now handles over 8 billion tokens per minute, indicating substantial integration into digital products and services worldwide.[2][4]

Generative AI’s Increasing Role in Business and Technology

OpenAI attributes the surge in usage to both consumer curiosity and a growing number of businesses integrating ChatGPT into workflows. Altman highlighted enhanced tools for building advanced agent systems, which are expected to drive even broader adoption among enterprises and developers.[2][5]

User Demographics and Global Reach

ChatGPT’s audience skews young, with over 45% of users under age 25. About 15% of users are based in the United States. The service currently ranks among the top 10 most visited websites globally.[1][6]

Further sources

[1] mitrade.com ↗ [2] securityonline.info ↗ [3] nerdynav.com ↗ [4] Sam Altman says ChatGPT has hit 800M weekly active users ↗ [5] Number of ChatGPT Users (October 2025) - Exploding Topics ↗ [6] OpenAI introduces apps in ChatGPT ↗ +2 more