OpenAI will reopen its $200-per-month ChatGPT Pro subscription to new users on September 30 after pausing sign-ups for nearly three weeks. The new plan will use a completely revised usage calculation system, with an API-equivalent allowance roughly half that of the previous $200 Pro offering while the monthly price remains unchanged. Tibo Sottiaux said OpenAI will not restore the former five-hour usage limit, allowing subscribers to use their weekly allocation as needed. OpenAI has said lower model costs and improved efficiency should increase the amount and quality of work subscribers can complete per dollar. GPT-6 Sol and GPT-6 Luna, launched this week, are priced at half their previous levels, while additional subscription benefits excluded from usage calculations are due to be announced the following day.