OpenAI rolls out composer predictions in Codex for eligible Pro users

OpenAI is adding another feature to Codex, its software engineering agent. Composer predictions in Codex are now in beta for eligible ChatGPT Pro users. The price tag during the beta is zero, beyond what those subscribers already pay. What OpenAI announced The announcement, posted on X, was short. Composer predictions in Codex are available to eligible Pro users during the beta, at no extra cost. The first qualifier is “eligible.” Not every Pro subscriber is necessarily included. OpenAI has not set out publicly which accounts qualify. The second is “beta.” The feature is still being tested in the wild, so it may change, expand or shrink before any general release. The third is “during the beta.” The no-extra-cost terms are tied to the test period. OpenAI has not said what pricing will look like once the beta ends. OpenAI has not published a technical breakdown of how predictions are produced or how fast they arrive. How Codex got here Codex launched in May 2025 as a cloud-based software engineering agent, initially limited to select users and designed to execute software-engineering tasks in preloaded cloud environments. Since then, OpenAI has expanded its functionality across vari...