Codex and ChatGPT Work Hit 40M Weekly Active Users, On Track for 100M by March 2027

FinanceYF5 · x · 2026-10-12

Per OpenAI-reported data, Codex and ChatGPT Work have reached 40 million combined weekly active users as of October 7 — up from 6M in early July, with growth accelerating sharply after ChatGPT Work's July 9 launch (25M by Aug 29). Extrapolating the trend points to 70M by year-end and 100M by end of March 2027, prompting jokes that OpenAI had better secure more compute.

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