OpenAI: From December, Plus/Pro/Business will share usage across ChatGPT and Codex
OpenAI Help Center says that starting in December, Plus, Pro, and Business plans will share one usage allowance across ChatGPT and Codex, measured in tokens; instant chat is excluded. This is a planned change, not live yet.
Note: This article reflects rates and features at the time of announcement, which may have since changed. For the latest pricing, see Subscriptions and API Pricing.
OpenAI’s Help Center article “Understanding ChatGPT and Codex usage limits” states that starting in December, Plus, Pro, and Business plans’ usage allowance will be shared across ChatGPT and Codex. OpenAI ties the change to bringing Work’s agentic capabilities into the main ChatGPT experience.
Usage will be measured in tokens (units of information a model processes and generates). How much allowance a task uses depends on the model and the work; more advanced models and complex tasks generally use more. Instant chat will not draw from this shared usage.
OpenAI says it is preparing carefully for the transition and expects most users will not need to wait for resets more often than they do now. Combined remaining usage and reset times will appear in Settings → Usage. If you reach the limit, you can wait for a reset, upgrade your plan, or buy credits for eligible features.
The article does not give an exact December start date, per-plan token totals, or a detailed reset schedule. This is a planned change, not a limit change that has already taken effect.