Codex hits 4M users as OpenAI recruits an army of engineers
codex grew to 4 million weekly users while openai launched deployco to embed engineers directly into client workflows to fix enterprise ai adoption.
openai created deployco to place engineers inside client environments, saying ai value only appears when embedded in business processes rather than accessed via api alone. the subsidiary acquired uk firm tomoro to add 150 specialists, while codex coding adoption surged 720 percent in germany. ctu arnaud fournier noted falling ai intelligence prices but added that newer models like gpt-5.5 cost more due to compute complexity, meaning roi remains difficult to calculate.