OpenAI to merge ChatGPT and Codex token allowances in December 2026

Plus, Pro, and Business subscribers will draw from one shared pool of usage across chat and coding OpenAI is about to combine two buckets into one. Starting in December, ChatGPT and Codex will share a single token allowance for subscribers on the Plus, Pro, and Business plans. The change matters because it alters how paying customers budget their usage. A heavy afternoon of Codex work will now eat into the same allowance you’d otherwise spend asking ChatGPT to rewrite your emails. What’s changing and who it affects The unified allowance covers OpenAI’s three main paid tiers: Plus, Pro, and Business. Under the new setup, usage across both products will be counted against one shared credit balance. That balance is measured in credits per million tokens across all models. Tokens are the small chunks of text that AI models read and write. The integration brings Codex, OpenAI’s coding agent, more fully into the ChatGPT ecosystem. The research places the start in December 2026. Plan structures still differ in important ways. Pro plans do not carry a 5-hour limit, while Plus and Business plans do. Pro users may still face weekly caps, though. How OpenAI got here This move is the latest st...