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Unconfirmed $500 ChatGPT Pro Max listing adds fastest Work and Codex

September 24, 2026 at 19:06 EDT

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Software Dev & Coding

A checkout-style listing for a ChatGPT plan called Pro Max, priced at $500 a month, has circulated ahead of any OpenAI announcement, with “Fastest Work and Codex” as the only wording that differs from today’s ChatGPT Pro. The same listing has been shown at $600 once value-added tax is included. OpenAI has not published Pro Max on its public plan pages, and nothing in the listing states that the tier runs on Cerebras hardware.

September 24, 2026 · OpenAI

A $500 Pro Max listing, still unpublished

A circulated plan description prices ChatGPT Pro Max at $500 a month and changes only one line versus Pro: Fastest Work and Codex. OpenAI’s public pages still stop at $200.

Monthly price, same unit

$20 Plus to a $500 listing

$20Plus

$100Pro · 5×

$200Pro · 20×

$500Pro Max

Each small block is $20. The $500 column is 25 of those units, drawn as five proportional segments. Pro Max usage versus Plus is not stated.

$500

Listed price before tax

$600

Same plan with VAT shown

5× / 20×

Official Pro usage versus Plus

Why some would pay

Heavy users say a team seat is worth it if flagship models were effectively unlimited. Speed is what long Work and Codex sessions run out of first.

Why others would not

The $200 plan already feels tight once Fast mode and large jobs are on. The listing does not publish a higher cap, and Fast mode today already costs 2.5×.

Not confirmed: chip, model, or a higher limit

The only stated difference is Fastest Work and Codex. New $200 Pro sign-ups are already paused. Cerebras is how OpenAI serves other low-latency products — Codex-Spark above 1,000 tokens per second, and GPT-5.6 Sol Ultrafast at up to 14× — not a backend named on this listing.

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