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# OpenAI prepares new $500/month Pro Max plan for ChatGPT
- URL: https://www.testingcatalog.com/openai-prepares-new-500-month-pro-max-plan-for-chatgpt/
- Published: 2026-09-24T23:56:54.000Z
- Updated: 2026-09-25T00:00:57.000Z
- Description: ChatGPT Pro Max will cost $500 per month and offer “Fastest Work and Codex”, potentially powered by Cerebras infrastructure.
- Author: Alexey Shabanov
- Tags: OpenAI, ChatGPT News, Latest AI News, AI Rumours

OpenAI appears to be preparing a new ChatGPT Pro Max subscription priced at $500 per month. The plan has surfaced in unreleased [ChatGPT](https://www.testingcatalog.com/tag/chatgpt/) subscription references, where its description differs from the existing Pro tier mainly through access to the “Fastest Work and Codex.” Higher usage limits may also be part of the package, although that is not confirmed yet.

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\* The price on the video is $600 due to VAT

The wording suggests Pro Max could target developers, researchers, and professional users running long agentic workloads rather than regular ChatGPT users. Work is designed for longer tasks, while Codex can operate on coding jobs that continue for hours or even days, making inference speed much more valuable in these scenarios.

> OpenAI is preparing a new higher-tier ChatGPT Pro plan [pic.twitter.com/EqRpODLqVs](https://t.co/EqRpODLqVs?ref=testingcatalog.com)
> 
> — Tibor Blaho (@btibor91) [September 24, 2026](https://x.com/btibor91/status/2103222629171908937?ref%5Fsrc=twsrc%5Etfw&ref=testingcatalog.com)

Context also points to Cerebras infrastructure. OpenAI already uses Cerebras for its latency-focused inference path, including GPT-5.6 Sol Ultrafast. This makes it plausible that the “Fastest” tier could rely on additional Cerebras capacity, though OpenAI has not confirmed a direct connection between Cerebras and Pro Max.

> OpenAI ❤️ Cerebras  
>  
> OpenAI announced Ultrafast mode for GPT-5.6 Sol in preview, which can speed up model performance by up to 14 times!  
>  
> Ultrafast mode is currently available to a limited set of customers, and others can sign up to be notified when it expands.   
>  
> \> During the… [https://t.co/rv5sdqIxML](https://t.co/rv5sdqIxML?ref=testingcatalog.com) [pic.twitter.com/y6Ls9KoLPr](https://t.co/y6Ls9KoLPr?ref=testingcatalog.com)
> 
> — 🚨 AI News | TestingCatalog (@testingcatalog) [August 13, 2026](https://x.com/testingcatalog/status/2087951653374677152?ref%5Fsrc=twsrc%5Etfw&ref=testingcatalog.com)

The timing is also notable. OpenAI DevDay takes place on September 29, and the company is expected to discuss APIs, developer tooling, [new subscription tiers for OpenAI Platform](https://www.testingcatalog.com/devday-new-plans-and-new-platform-for-building-ai-apps/) and new products. OpenAI recently paused new purchases of its $200 Pro tier because of system load, while continuing to expand access to faster inference infrastructure.

If released in its current form, Pro Max would sit far above most individual AI subscriptions, including $200 plans from Anthropic and Cursor and Google’s roughly $250 AI Ultra tier. The main question is whether [OpenAI](https://www.testingcatalog.com/tag/openai/) plans to justify the $500 price primarily through speed, larger usage allowances, longer-running Work sessions, or a combination of all three.