OpenAI closes $11B round at a $1.25 trillion valuation

OpenAI's $11 billion raise values the company at $1.25 trillion. That keeps it among the most valuable private companies in the world. The money comes as compute costs keep climbing: Sam Altman spent this week in Korea courting Samsung for scarce high-bandwidth memory (HBM).

The round is modest relative to the valuation, which suggests it tops up existing financing rather than resetting OpenAI's capital structure. Its main purpose is to fund data center buildouts and chip and memory procurement. Memory is the binding constraint: Samsung's 2027 HBM output is sold out and SK Hynix is booked through 2029.

The competitive picture is also shifting. METR reported Anthropic's capability gains accelerating about 1.9x year over year. AWS projects 40%+ growth on AI demand. Chinese labs including DeepSeek and Alibaba are scaling distribution fast.

The skeptical read: a $1.25T mark implies enormous future revenue, while vendors across the industry are still struggling to price AI products. Microsoft has again delayed usage-based Copilot billing, and Apple is weighing a paid Siri tier. Investor names and terms were not detailed in the sources.