OpenAI's agent army hits 10M users — double in two weeks

OpenAI told Bloomberg its two agent products — Codex and the newer ChatGPT Work — now have 10 million combined active users, roughly double the count from two weeks earlier when ChatGPT Work launched on July 9. The trajectory is steep: ~1 million in February, 8 million by July 14, 10 million by July 21.

The caveat: OpenAI doesn't break out the split between the two products, and hasn't said whether "active" means daily, weekly, or a snapshot. ChatGPT Work inherited 5M+ weekly users from Codex at launch plus 1M+ non-developers already using it for non-coding work — so a chunk of that 10M is reshuffled, not net-new.

Meanwhile the usage limits keep getting reset. OpenAI killed the 5-hour cap for Plus, Pro, and Business on July 12 and has reset quotas repeatedly since, with product lead Tibo Sottiaux citing intense demand for GPT-5.6 Sol. Free capacity is the growth lever right now — which makes the 10M figure as much a story about subsidy as adoption.

Why it matters: OpenAI is framing agent headcount as the scoreboard against Anthropic, but the metric is undefined and the usage is currently unmetered.