Combined active users of Codex and ChatGPT Work have reached 40 million, a new high announced on October 8, 2026 by OpenAI product lead Thibault Sottiaux. He also confirmed that banked usage resets for paid accounts have now landed across all accounts. The announcement landed just as GPT-6 rolled out to everyone in ChatGPT, and OpenAI used the moment to package its coding agent and its workplace agent into a single growth story.
The 40 million is two products added together
Start with the definition. The 40 million combines Codex and ChatGPT Work, and the announcement did not specify the measurement window: weekly, monthly or something else is currently impossible to confirm. Comparing it directly with older figures produces the wrong math. In June, OpenAI said Codex had passed 5 million weekly users; in August, Sottiaux put ChatGPT Work at 20 million users. Those measures are not interchangeable, so the new total proves neither that Work doubled nor that Codex grew eightfold. The one thing it does confirm is that OpenAI now presents the two products as a single agent business line.
Why the reset arrived on the same day
The same thread delivered banked usage resets to paid accounts. Resets have become a recurring ritual for Codex in recent months; OpenAI previously pledged 28 days of daily improvements, with a reset whenever it missed a day. Pairing the reset with the 40 million figure sends a clear signal: when usage grows this fast, keep heavy users happy with quota first and talk about capacity later. For paying users, the reset that actually arrives is worth more than the headline number, and it can be checked directly in the account to see whether the allowance has refreshed.
Combined counting follows combined entry points
The product shape is changing too. Codex now lives inside ChatGPT on desktop and mobile, while ChatGPT Work handles documents, spreadsheets and research tasks, and both entry points share one account and quota system. Once the entry points merge, reporting a merged user count is the natural next step. For developers and team buyers, though, the yardstick should not be the 40 million total. It should be your own team's weekly actives, daily actives and task completion rates, because those are the only numbers that matter at renewal time.
