OpenAI has temporarily stopped accepting new subscriptions to ChatGPT Pro, its most expensive personal plan at $200 per month, citing system strain from the explosive demand for GPT-6 Astra. The company made this decision to ensure existing users maintain reliable access to the new model, which OpenAI describes as the "world's most intelligent and aligned model." Other ChatGPT subscription tiers, including Plus and Go, continue to accept new subscribers.

Why Is Demand for GPT-6 Astra So Unprecedented?

GPT-6 Astra launched on September 3rd with access available across Business, Enterprise, Plus, and Pro versions of ChatGPT. The model has generated such intense interest that OpenAI's infrastructure is struggling to keep pace. Thibault Sottiaux, head of core product and platform at OpenAI, explained the severity of the situation in a public statement.

"We're pulling all the levers possible to sustain the demand, but I've not seen anything like it until now and we went through very steep growth before," stated Sottiaux.

Thibault Sottiaux, Head of Core Product and Platform at OpenAI

The Pro tier places the most strain on OpenAI's systems because it offers the highest usage allowances. By pausing new Pro subscriptions while keeping Plus and Go tiers open, OpenAI is attempting to balance user access with system stability. Sottiaux noted that the company's priority remains "to keep excellent service for existing users".

Sottiaux

What Makes GPT-6 Astra Different From Previous Models?

GPT-6 Astra represents a significant step forward in OpenAI's model lineup. The company has highlighted the model's capabilities across several critical domains that matter to both individual users and enterprise customers. These capabilities include:

• Web Browsing: The model can search and retrieve current information from the internet in real time
• Computing and Analysis: Advanced mathematical and data processing abilities for complex problem-solving
• Cybersecurity: Enhanced capacity to identify vulnerabilities and security threats
• Software Engineering: Improved code generation, debugging, and architectural design assistance

These features explain why demand has been so intense. Users and businesses are eager to access a model that can handle both creative and technical tasks with greater sophistication than previous versions.

How to Access GPT-6 Astra If You Can't Get Pro Right Now

• ChatGPT Plus Subscription: New users can still sign up for the Plus tier to access GPT-6 Astra, though with lower usage limits than the Pro plan
• ChatGPT Go Plan: The lower-cost Go subscription tier remains available for new subscribers and includes access to Astra
• Existing Pro Members: If you already have an active Pro subscription, your service continues normally with full access to Astra

OpenAI has not provided a timeline for when Pro subscriptions will reopen. The company is actively working to add more computing capacity to handle the demand, but the exact duration of the pause remains unclear.

This pause represents a rare moment in AI development where demand has outpaced infrastructure. While OpenAI has experienced rapid growth before, Sottiaux's statement that he has "not seen anything like it" suggests that GPT-6 Astra's reception has exceeded even the company's internal projections. For users eager to try the new model, the Plus and Go tiers offer an alternative entry point, though with the understanding that usage will be more limited than what Pro subscribers receive.