OpenAI's ChatGPT Work and Codex pass 40M weekly active users
AI summary
Thibault Sottiaux, who leads OpenAI's core products and platform, said ChatGPT Work and Codex have reached a new high of 40 million active users. Peter Gostev, who heads the Arena.ai (LMArena) evaluation platform, projected that if the trend continues the figure would reach roughly 70 million by year-end and about 100 million by the end of March 2027 — a third-party estimate, not OpenAI guidance.
In-depth insight
The figure is one signal of how widely OpenAI's agentic and workplace products are actually being adopted.