OpenAI is reportedly testing a new subscription tier, ChatGPT Pro Max, priced at $500 per month. This potential plan is 25 times more expensive than the standard $20 ChatGPT Plus subscription and more than double the $200 Pro tier introduced in December 2024.

Evidence of the new tier appeared in hidden logs, code strings, and interface screenshots shared by researchers and users on platforms like X and Reddit. The identifier chatgptpromax was discovered within the system, though OpenAI has not officially confirmed the existence of the plan.

The Pro Max tier reportedly focuses on increasing speed for specific agent products, including Work for research tasks and Codex for software development. Additional features mentioned in leaked materials include increased memory allocation and 100GB of file storage for users.

Reports suggest the service may utilize hardware from chipmaker Cerebras, which claims its wafer-scale processors are 21 times faster than Nvidia B200 chips at one-third of the cost. The potential launch follows competitive pricing moves from rivals like Anthropic and Google.

The company is expected to hold its DevDay conference on September 29. Industry observers anticipate that OpenAI might provide further details on its pricing strategy and new product tiers during this upcoming developer event.