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. The unified allowance covers OpenAI’s three main paid tiers: Plus, Pro, and Business.