OpenAI says ChatGPT and Codex will draw from a shared allowance on Plus, Pro and Business starting in December 2026. The change comes as OpenAI brings Work’s agent capabilities into the main ChatGPT experience.
Which requests use the allowance?
OpenAI will measure usage in tokens. The model you pick and the complexity of the task affect how much allowance a request uses. A delegated task in ChatGPT and a code review in Codex can draw from the same pool. OpenAI says Instant chat is exempt, so a quick conversation in Instant will leave that allowance untouched.
Where to check the balance
OpenAI says Settings → Usage will show the combined balance and reset times. If you run out, the options it lists are waiting for the reset, upgrading your plan or buying credits to continue using eligible features.
