Recent user interface leaks and backend code snippets reveal that OpenAI is preparing a high-end subscription tier. The new plan, dubbed ‘ChatGPT Pro Max’, is priced at $500 per month. This monthly billing figure is 25 times more expensive than the ChatGPT Plus subscription, which has long served as the benchmark for individual users. The ‘chatgptpromax’ label and its pricing details leaked to public observers ahead of OpenAI’s annual DevDay conference scheduled for September 29, 2026.
Dedicated Infrastructure for Autonomous Agents
The massive price difference reflects a shift in backend processing architecture. This $500 premium tier is not designed for standard text chat Q&A sessions, but is specifically tailored to deliver maximum inference speed for autonomous agent workflows. Leaked system code shows that the performance boost is specifically allocated to the ‘Work’ feature and ‘Codex’ programming interface. Both advanced services require AI programs to plan multi-step tasks and execute sequences of code without completion latency.
Circulating reports complement these interface findings by noting a shift in physical hardware. The ChatGPT Pro Max service reportedly relies on compute power from Cerebras wafer-scale processors to achieve its agent speed targets. This chip architecture dramatically multiplies internal data bandwidth between components. The hardware approach allows the system to deliver compute responses significantly faster than standard processing on conventional GPUs.
A New User Tier at DevDay
The five-hundred-dollar monthly price tag highlights a new strategy for service providers to monetize hardware compute capacity. OpenAI is separating virtual chat assistants from autonomous execution engines that operate without human intervention. For developers whose workflows center heavily on ‘Codex’ and ‘Work’ capabilities, direct access to Cerebras infrastructure will significantly slash task queue times across every code automation cycle.
Operational details regarding the terms of this top-tier subscription will likely be featured during the DevDay keynote later this month. The leaked code interface offers a glimpse into a new pricing landscape for the artificial intelligence community: unrestricted inference speed for autonomous agents has now entered corporate pricing territory. Reported by Decrypt.
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