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Tibor Blaho: ChatGPT checkout page shows a shared quota with Codex starting in December

Tibor Blaho posted on October 29, 2026, that the ChatGPT web subscription checkout page displayed a previously unpublished notice: “Starting in December, plan usage will have a shared limit across all of ChatGPT and Codex” (starting in December, plan usage will have an upper limit shared across ChatGPT and Codex). Blaho said that this notice is very likely related to the ongoing Chat and Work integration effort.

Earlier, on October 28, 2026, a user saw a pop-up in ChatGPT saying “Chat and Work, all in one place” and asked about the impact on quota usage. Tibo (@thsottiaux), head of OpenAI Codex and ChatGPT, responded that the team is working on this, but it has not officially launched yet; he said the plan is to combine the capabilities of Chat and Work within this year, that it will be advanced cautiously, and that more information will be available soon. The response did not directly mention any change in how quotas are calculated.

At present, ChatGPT Work and Codex already share one agentic allowance, while normal Chat mode remains on a separate limit. The new checkout-page notice points to normal Chat also being included in the same shared upper limit starting in December, but OpenAI has not officially announced this adjustment on its pricing page or in its official changelog. On the same day, Tibo announced that the Work and Codex allowances for Pro 100/200/500 and Business Premium would be doubled and take effect immediately, that the planned reduction for Pro 200 would be canceled, and that the normal Chat limit was not included in this doubling.

Original sources:

  1. Title: ChatGPT web app now has a new hidden shared usage limit checkout disclaimer - "Starting in December, plan usage will have a shared limit across all of ChatGPT and Codex" Publisher: Tibor Blaho (@btibor91) Publication date: 2026-10-29 URL: https://x.com/btibor91/status/2115927832069292214 Source type: original post by the party involved Verification: full text of the original post and subsequent replies were read for this report (including the linked Tibo post), verification date 2026-10-30 Supporting content: the original hidden checkout-page notice and Blaho's judgment that it is related to Chat+Work integration

  2. Title: Team is working on this but it's not rolling out just yet... Publisher: Tibo (@thsottiaux) Publication date: 2026-10-28 URL: https://x.com/thsottiaux/status/2115588390414581916 Source type: original post by the party involved Verification: the full post and cited context were read, verification date 2026-10-30 Supporting content: the team's plan to integrate Chat and Work capabilities within this year, not yet launched, to be advanced cautiously

  3. Title: ChatGPT Work & Codex Limits by Plan: 5-Hour Estimates Publisher: ToolColumn Publication date: 2026-10-11 (content updated to 2026-10) URL: https://www.toolcolumn.com/learn/chatgpt-work-codex-limits-by-plan Source type: media report Verification: the page's explanation about shared limits for Work and Codex was read, verification date 2026-10-30 Supporting content: background that Work and Codex currently share one quota, while normal Chat has a separate limit (this does not prove the December change is already in effect)

  4. Title: Claude Code usage limits: Pro, Max, Team and resets Publisher: usepoly.co (citing Anthropic official documentation) Publication date: 2026-10-05 (updated to 2026-10-28) URL: https://usepoly.co/claude-code-usage-limits Source type: media report (citing official source) Verification: the explanation about shared limits for Claude and Claude Code was read, verification date 2026-10-30 Supporting content: precedent that Anthropic has long counted chat and coding tools against the same plan quota (this does not prove OpenAI has adopted the same mechanism)

ABAB AI Insight

Tibor Blaho is a Lead Engineer at AIPRM and has long tracked OpenAI and Anthropic product updates, publicly sharing details about checkout pages, strings, and feature flags; the notice he found this time was in hidden text in the checkout flow rather than in an official blog post or pricing page. Tibo (Thibault Sottiaux) is an OpenAI engineer responsible for Codex and ChatGPT products, and in the past has repeatedly used his X account to post updates on quota resets, model changes, and product integration progress. Around May 2026, during Greg Brockman's organizational adjustment that integrated ChatGPT, Codex, and the API into a unified agent platform, Tibo was placed in a core product and platform role.

ChatGPT's current quota structure is that Work and Codex already share one agentic pool, while normal Chat is metered separately. If the December notice takes effect, normal chat will also be included in the same pool, causing chat usage to directly consume the budget for coding and work agents. This would match the mechanism already used by Anthropic—Claude's official documentation explicitly states that Claude web, desktop, and mobile, along with Claude Code, share the same five-hour session limit and weekly limit, with chat and coding deducted from the same account quota.

OpenAI has previously adjusted its quota wording multiple times: on October 29, 2026, Tibo announced that Work and Codex allowances for Pro and other tiers would be doubled, while the reduction for Pro 200 would be canceled, and normal Chat was not included. The checkout-page notice appeared after the quota-doubling announcement, creating a sequence of “first easing agent quotas, then previewing chat being folded into the same pool.” On the user side, concerns have already appeared that “almost unlimited chat” may disappear, and some replies directly said they would cancel their Pro subscription if chat were counted toward the limit.

If implemented as indicated, this change would alter the practical usage structure of ChatGPT subscriptions: chat would no longer be an independent buffer, but an entry point competing with Codex for the same compute budget. For heavy coding users, web chat would directly shorten the available agent time; for chat-first users, it could be the first time they face a clear weekly cap. The key items to watch are whether the December checkout page and pricing page are updated in tandem, and whether Tibo provides further clarification on whether normal Chat will be included in the shared pool.

ABAB News · Cognitive Laws

  1. Once chat and agents share a quota, the independent buffer disappears, and usage directly crowds each other out.

  2. Small print on the checkout page appears before an official announcement; quota-rule changes often use hidden text to test user reactions.

  3. Doubling agent quotas first and then folding in chat is a way to release added capacity and potential consumption at the same time.