🔍 Read the full analysis: AI Flat Rates Explained: Why Grok Costs And OpenAI’s Rules Matter on ThorstenMeyerAI.com
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TL;DR
Elon Musk said on Nov. 1 that the cost of serving xAI’s Grok Bot was “unsustainably high relative to revenue,” without giving figures or announcing a specific new limit. In the same week, OpenAI published limits on paid-account sharing and said several plans will use one allowance across ChatGPT and Codex from December. The developments show that flat monthly prices do not necessarily mean unlimited use.
Elon Musk said on Nov. 1 that serving Grok Bot had become “unsustainably high relative to revenue,” while OpenAI published new restrictions on sharing paid ChatGPT subscriptions and announced a shared usage allowance for ChatGPT and Codex starting in December. Neither company has disclosed enough detail to calculate the costs or predict the effect on individual users, but the changes show that a flat monthly price does not necessarily mean unlimited use.
Musk’s comment came in response to an X user asking about reports that Grok Bot usage had run out quickly. The user asked for a reset; Musk replied that the cost of serving the agent was “unsustainably high relative to revenue.” He gave no cost, revenue or margin figures, and did not announce a price change, reset or specific new usage cap. His comment referred to Grok Bot, xAI’s task-oriented agent, rather than Grok chat generally.
xAI’s pricing information places Grok Bot in its paid Premium, Super and Ultra plans, priced at $30, $100 and $200 a month, respectively, according to the supplied source. Its usage draws from a shared weekly pool that also covers Grok chat and specified model use in Cursor. xAI says consumption depends on agent steps, tokens and the work requested, rather than simply the number of messages.
OpenAI’s changes concern both account sharing and how usage is counted. Its help center says paid ChatGPT accounts face limits on how many accounts can be used on a device and how many subscriptions can be purchased with one card or device; it does not publish the thresholds. From December, the company says Plus, Pro and Business plans will draw from one allowance across ChatGPT and Codex, measured in tokens. The supplied source says unlimited “Instant” chats remain outside that meter.
Infographic 01 · One week, four moves
More allowance, more metering: the week the AI flat rate cracked
In four days, OpenAI raised some limits, tightened others and announced one shared meter, and Musk called the cost of serving Grok Bot unsustainably high relative to revenue.
“The cost of serving Grok Bot was unsustainably high relative to revenue”Elon Musk on X, 1 November 2026, 20:34 UTC, replying to a user who asked for a Grok Bot reset
OpenAI gives more on top plans
Pro 100 and Pro 500 get twice their Work and Codex allowance. A planned cut on Pro 200 is cancelled.
Limits per card and per device
ChatGPT may block a new subscription if too many are tied to one card or device. Applies to Go, Plus, Pro 100, 200 and 500. No number published.
One meter from December
Plus, Pro and Business: one token-based allowance across ChatGPT and Codex. Unlimited Instant chats stay outside.
Musk: Grok Bot cost too much
One sentence, past tense. No figures, no new limit, no word on resets or prices.
Paid resets on ChatGPT pull next week’s allowance forward; they do not add usage. Credits are a prepaid balance used after the included allowance.
Sources: Musk on X, 1 Nov 2026 · Tibo on X, 29 Oct 2026 · OpenAI: card and device limits · OpenAI: ChatGPT and Codex usage limits · OpenAI: paid resets.
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Flat Prices, Variable Usage
For subscribers, the practical distinction is between a fixed subscription price and a fixed amount of service. A user doing ordinary chats may consume less than someone running an agent through lengthy research, coding or browsing tasks. Where access is governed by a shared pool, one kind of activity can also leave less capacity for another.
For businesses, that makes AI subscriptions resemble other usage-based technology services: a seat fee may not be the whole cost. Companies may need to track consumption, set internal expectations and ask vendors for clear written terms on caps, resets, pooled allowances and overage charges. The source material does not establish that any provider has adopted a universal pricing model; it points instead to more visible metering alongside monthly plans.
Users should not infer a particular change to Grok Bot from Musk’s brief statement alone. OpenAI’s published rules are more specific about the existence of account and allowance limits, but the undisclosed thresholds mean customers cannot fully assess how the rules will affect them before they encounter them.
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How Subscription Limits Evolved
OpenAI introduced a $200-a-month ChatGPT Pro plan in December 2024, advertising unlimited access to its best models, according to the supplied material. The following month, chief executive Sam Altman wrote on X that the company was losing money on Pro subscriptions because users were using them more than expected. That earlier comment illustrates the cost challenge of selling access for a flat fee, but does not establish the economics of today’s plans.
The latest OpenAI changes do not all tighten access. On Oct. 29, OpenAI said it was increasing Work and Codex allowances on Pro 100 and Pro 500 and cancelling a planned reduction on Pro 200. A company employee, Thibault Sottiaux, described broader increases in a post on X; OpenAI’s release notes, as summarized in the supplied source, specified the changes to those tiers. The distinction matters: allowances can rise on some plans while metering and account restrictions also expand.
The economics vary by task and model. The source says OpenAI’s rate card assigns different token costs to different models, with the most capable model using an allowance about 100 times faster per output token than the cheapest. That comparison concerns the rate card’s per-token usage, not a claim that every task costs 100 times more. Agents can also run for extended periods, making their consumption less predictable than a short question-and-answer exchange.
“The cost of serving Grok Bot was unsustainably high relative to revenue.”
— Elon Musk, replying on X on Nov. 1, 2026
Limits and Costs Still Undisclosed
Musk did not say what Grok Bot’s costs or revenue were, what changed, or whether xAI reduced its weekly pool. The past tense in his reply does not by itself confirm that a usage change had already taken place. The supplied material also mentions reports of a post from Grok’s official account about adjusted allocations and a dashboard fault, but says the post could not be independently located. Those details should be treated as reported, not confirmed.
OpenAI has not published the number of accounts allowed per device or subscriptions allowed per card or device. The exact mechanics and thresholds of the shared ChatGPT-Codex allowance, including how it will affect different usage patterns, also remain unclear in the supplied material. It is not clear whether either company will change prices or offer additional ways to purchase capacity in response to these developments.
Watch for Published Usage Terms
The next stated milestone is OpenAI’s planned shared ChatGPT and Codex allowance in December. Customers will need to check the company’s help and plan pages for the detailed terms and how usage is displayed. xAI has not announced a date for a Grok Bot reset or a change to its pricing or weekly pool in the information available here.
For now, subscribers can review their usage pages before upgrading or buying credits, while businesses can ask vendors to document allowance sizes, reset schedules, account-sharing rules and any additional charges. Whether the companies will publish more detailed figures or revise their plans remains unclear.
Key Questions
Did Elon Musk announce a new Grok Bot limit?
No specific new limit was announced in the quoted reply. Musk said serving Grok Bot was “unsustainably high relative to revenue,” but gave no details about a cap, reset or plan change.
Which ChatGPT plans are moving to a shared allowance?
OpenAI says Plus, Pro and Business plans will share an allowance across ChatGPT and Codex from December. The supplied source says unlimited “Instant” chats remain outside that meter.
Has OpenAI published its device and payment-card thresholds?
No. Its help center says limits apply to the number of paid accounts used on a device and subscriptions purchased with a card or device, but the supplied material says OpenAI has not published the numbers.
Does a flat monthly AI plan guarantee unlimited use?
Not necessarily. These developments show that a subscription can have a fixed monthly price while usage is subject to shared allowances, account restrictions or task-dependent consumption. The exact terms vary by provider and plan.
Source: ThorstenMeyerAI.com
