OpenAI’s Codex usage limits for paid ChatGPT plans reset on rolling weekly and five-hour windows, with extra global or banked resets announced by engineering lead Thibault Sottiaux when models launch, bugs surface, or milestones hit. The primary driver behind the tight market is Sottiaux’s October 4 pledge to deliver either a broadly useful improvement or a full reset every day for the next 28 days, coming just after the October 2 global reset that refreshed limits across paid accounts. Traders see elevated odds for multiple resets because the commitment raises the chance of discretionary actions beyond the normal cadence of roughly one every 6–7 days, yet the “or improvement” wording and lack of a fixed schedule keep single-reset or zero-reset scenarios competitive. Key swing factors include any GPT-6.1 Sol follow-up issues, new model rollouts, or user-volume spikes that could prompt immediate resets versus quiet feature tweaks.