OpenAI pauses $200 ChatGPT Pro signups as heavy users strain compute, awaits capacity
APPSO · wechat · 2026-09-11
OpenAI has paused new signups and upgrades for its $200/month ChatGPT Pro tier as of September 10, 2026, citing excessive compute load from heavy users of GPT-6 Astra; existing subscribers are unaffected. The piece also rounds up: GPT-6 Astra solved all FrontierMath Tier 4 problems (from 5% to 98% in 14 months), OpenAI's claimed Navier-Stokes progress (costing millions in compute, 1000x prior math research spend, pending review), rumored work on the Hodge and BSD conjectures, a $750B compute spending outlook through 2030, and Sam Altman reportedly considering deliberately slowing frontier model development in coordination with other labs.
Related event: OpenAI suspends new $200 Pro sign-ups as Astra demand overwhelms capacity(7 posts)→
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