Daily · · Codex · 🌶️🌶️Worth a lookMedium: worth a look Why: One allowance for chat and code
ChatGPT and Codex will share one usage limit in December
Billing change: starting in December, Plus, Pro and Business plans get one usage allowance shared across ChatGPT and Codex. OpenAI’s Help Center page on the change went up on Oct 31, 2026, and says usage will be measured in tokens.
What changed
How much of your allowance a request uses will depend on the model and the task. OpenAI says ChatGPT and Codex usage will be counted in tokens, the units of information a model processes and generates.
More advanced models and complex tasks generally use more of the allowance, and Instant chat won’t draw from it at all. OpenAI ties the change to bringing the agentic capabilities of Work into the main ChatGPT experience.
What OpenAI says about limits
- OpenAI expects most users won’t need to wait for their usage to reset more often than they do now.
- Your combined remaining usage and reset times will show in Settings → Usage.
- At the limit, you can wait for the reset, upgrade your plan or buy credits to keep using eligible features.
What to do
If you lean on Codex for long coding sessions, check Settings → Usage once the change starts in December. Your ChatGPT chats (other than Instant) and your Codex tasks will draw from the same allowance.
Source: OpenAI Help Center: understanding ChatGPT and Codex usage limits, Oct 31, 2026