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ChatGPT and Codex will share one usage pool in December: What Plus, Pro and Business users need to know
Starting in December 2026, Plus, Pro and Business subscribers will share a token based allowance across ChatGPT and Codex; Instant chat is excluded. Check remaining usage and reset times in Settings → Usage.
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Key takeaways
- Starting in December 2026, Plus, Pro and Business subscribers will share a token based allowance across ChatGPT and Codex; Instant chat is excluded.
- Check remaining usage and reset times in Settings → Usage. How quickly the pool runs down depends on the model and task.
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openai.comCreate a landscape editorial hero image for this Studio Global article: How will OpenAI’s planned December merger of ChatGPT and Codex usage allowances for Plus, Pro, and Business subscribers work as Work’s agent. Article summary: OpenAI plans to give Plus, Pro, and Business subscribers one shared, token-based allowance for ChatGPT and Codex starting in December 2026, as Work’s agentic capabilities move into the main ChatGPT experience; Instant ch. Topic tags: general, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fa
OpenAI plans to combine ChatGPT and Codex usage for Plus, Pro and Business subscribers starting in December 2026, as it brings Work’s agentic capabilities into the main ChatGPT experience. Advanced chats and coding tasks will draw from one token-based allowance; Instant chat will not. The exact launch day and the size of each plan’s allowance have not been specified in the available announcement. 49
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What the shared allowance means
Instead of separate usage budgets for ChatGPT and Codex, eligible activity in both products will count toward a combined pool. In practice, using more of the allowance in one product leaves less available for the other. 49
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The allowance is measured in tokens, not a fixed number of messages or tasks. How much a request uses depends on the model and the task; OpenAI says more advanced models and complex tasks generally use more. So two sessions—or two users on the same plan—may get different amounts of work from their allowance. 49
Instant chat is excluded. It will not draw from the shared usage allowance. OpenAI’s announcement does not explain why Instant is exempt, so the exemption should not be taken to mean other ChatGPT modes are also outside the pool. 49
Where to check usage and what happens at the limit
OpenAI says subscribers will be able to see their combined remaining usage and reset times under Settings → Usage. If you reach a limit, available options may include waiting for the displayed reset, upgrading, or adding credits where available. 49
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These are the announced options for usage limits; they do not establish that every option will be available to every plan or subscriber. Current help guidance also describes paid resets for eligible Plus and Pro accounts. Those resets bring forward the normal Work–Codex allowance rather than creating an extra, separate entitlement, and they are a current feature—not a confirmed detail of the December change. 22
How this relates to existing Work and Codex limits
ChatGPT Work and Codex already share subscription pricing, credits and usage limits. Current documentation says limits can apply over five-hour and weekly windows, depending on the plan. The December change extends shared usage to ChatGPT more broadly; it does not, by itself, specify how each plan’s future windows or allowance will work. 1
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Current pricing documentation says Pro plans do not have a five-hour limit. That describes the current arrangement, not necessarily the rules that will apply after the December change. 1
OpenAI has also recently updated some Pro allowances: its Pro-tier help page says Pro 100 and Pro 500 include more Work and Codex usage, and Pro 200 subscriptions now have the same Work and Codex allowance. Those existing changes do not reveal the size of the December shared pool. 3
What is still unclear
The announcement sets December as the start month, but does not give an exact day or plan-by-plan token totals in the available details. That means current estimates of message counts or today’s Work–Codex limits should not be treated as promised amounts for the future combined allowance. 21
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OpenAI says it expects most users will not need to wait for a reset more often than they do now. That is an expectation, not a guarantee—particularly for subscribers who make heavy use of both advanced ChatGPT and Codex. 49
The change applies to subscription usage, not API billing. OpenAI’s pricing documentation says API usage and Codex sessions authenticated with an API key are unaffected; API token prices are separate from included subscription usage. 42
Separately, a report described a shared-limit notice on the ChatGPT checkout page. That is reported screenshot evidence; it should not be confused with a verified change to API pricing. 28
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Why some users are concerned
Some subscribers argue that coding work and high-effort conversations serve different purposes. Under one shared pool, a demanding Codex session could leave less allowance for advanced ChatGPT use, or the reverse. Community and GitHub posts also raise concerns about interrupted development, unclear quota costs and the value of subscriptions for people who rely heavily on both products. These posts document individual objections, not how all subscribers feel or what the final allowances will be. 17
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What is the short answer to "ChatGPT and Codex will share one usage pool in December: What Plus, Pro and Business users need to know"?
Starting in December 2026, Plus, Pro and Business subscribers will share a token based allowance across ChatGPT and Codex; Instant chat is excluded.
What are the key points to validate first?
Starting in December 2026, Plus, Pro and Business subscribers will share a token based allowance across ChatGPT and Codex; Instant chat is excluded. Check remaining usage and reset times in Settings → Usage. How quickly the pool runs down depends on the model and task.