Franchise Statistics Bureau · 2025-10
How many people use ChatGPT weekly?
Figures are published by third parties, compiled as-is, and may change. We do not independently verify the underlying data — check the source before acting on it. For reference only; not legal, tax, or investment advice.
800M+
weekly active users
ChatGPT reached 800 million weekly active users by October 2025, OpenAI CEO Sam Altman said at DevDay — up from 500 million at the end of March 2025.
In August 2025, OpenAI had said it was on the cusp of reaching 700 million weekly active users (TechCrunch).
What this figure measures
The figure is the number of people who use ChatGPT every week, as stated by OpenAI chief executive Sam Altman during his keynote at OpenAI's DevDay on October 6, 2025. It is OpenAI's own usage figure for its ChatGPT product at that point, reported by TechCrunch, rather than an audited or independently measured number. The article does not say how a weekly user is defined.
How it was produced
TechCrunch's report does not publish a methodology for the figure, which it presents as a statement Sam Altman made on stage at OpenAI's DevDay.
What it does not tell you
This is a single company's count of its own product's users, relayed by the press, and because no definition of a weekly user is given it is unclear whether accounts or individuals are counted. It is a snapshot from October 2025. The article's earlier comparison points, 500 million weekly users at the end of March and close to 700 million in August, were also OpenAI's own figures.
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