OpenAI's Codex Crosses 8 Million Users as AI Coding Enters a New Phase

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OpenAI's AI coding assistant Codex has crossed 8 million weekly active users, marking one of the company's fastest-growing developer products to date and underscoring the growing enterprise demand for AI-powered software development tools.

The milestone comes just days after OpenAI launched GPT-5.6 and integrated the standalone Codex application into the ChatGPT desktop app alongside the introduction of ChatGPT Work, its new agentic workspace for knowledge workers.

The rapid uptake reflects a broader shift in enterprise AI adoption, where coding assistants are evolving from standalone developer tools into integrated productivity platforms.

GPT-5.6 Accelerates Codex Adoption

OpenAI Engineering Lead for Codex Tibo Sottiaux announced on X that the combined weekly active users of Codex and ChatGPT Work had surpassed 8 million, continuing a sharp growth trajectory over the past few months.

Hello. We have reached 8M active users across Codex and ChatGPT Work.

We are once again resetting the usage limits for...

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