OpenAI has closed a $122 billion funding round at an $852 billion post-money valuation, turning an already massive February raise into one of the biggest private capital events in tech history. The company also said more than $3 billion of that total came from individual investors through bank channels, marking a new route for broader ownership ahead of any future public listing.
The raise gives OpenAI more firepower for chips, data centers, cloud infrastructure, and product expansion, while also strengthening the narrative that the ChatGPT maker is becoming a core AI platform spanning consumers, enterprises, and developers.
TL;DR
- OpenAI closed a $122 billion funding round at an $852 billion valuation.
- More than $3 billion came from individual investors through bank channels, and OpenAI said its shares will also be included in several ARK Invest ETFs.
- The company says the capital will support compute, infrastructure, and a unified AI superapp spanning ChatGPT, Codex, browsing, and broader agentic tools.
How The Round Grew Bigger
This closing follows OpenAI’s February 27 announcement that it was raising $110 billion at an $840 billion valuation, with Amazon, Nvidia, and SoftBank supplying the bulk of the capital. At the time, Amazon’s commitment reportedly began with $15 billion upfront, with another $35 billion tied to an IPO or AGI milestone, while OpenAI also agreed to use 2 gigawatts of Trainium-powered capacity on AWS.
By March 31, the round had grown to $122 billion and the valuation had climbed to $852 billion, showing that investor appetite only expanded as the round moved toward close.
What OpenAI Said About Growth
OpenAI used the announcement to underline how quickly its business is scaling. The company said ChatGPT now has more than 900 million weekly active users and over 50 million subscribers. It also said revenue has reached $2 billion per month, enterprise now contributes more than 40% of total revenue, APIs process more than 15 billion tokens per minute, and Codex serves over 2 million weekly users.
Those figures helped frame the raise not just as a funding event, but as proof that OpenAI believes it has already reached commercial scale across consumer and enterprise AI.
Why Infrastructure Is The Real Story
OpenAI framed the raise as an infrastructure story, not only a financing story. In its funding post, the company said Nvidia remains the foundation of its training and inference stack, but its broader compute footprint now spans Microsoft, Oracle, AWS, CoreWeave, and Google Cloud. On the silicon side, it listed Nvidia, AMD, AWS Trainium, Cerebras, and a custom chip effort with Broadcom.
OpenAI also said it expanded its revolving credit facility to about $4.7 billion, and that the facility remains undrawn. Together, that gives the company additional flexibility as it continues to spend aggressively on compute and deployment capacity.
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What Stakeholders Said
The strategic pitch is clear. OpenAI says it is building a unified AI superapp that combines ChatGPT, Codex, browsing, and agentic capabilities into one surface.
Sam Altman, co-founder and CEO of OpenAI, said in a February company post, “We’re pushing the frontier across infrastructure, research, and products to make AI more capable, reliable, and broadly useful.” In a separate OpenAI release with Amazon, Altman added that combining OpenAI’s intelligence with Amazon’s infrastructure helps put powerful AI into the hands of businesses and users at real scale.
What Comes Next
There is still an open question over how public markets will eventually price all of this ambition, especially given the sheer scale of capital needed to sustain the AI buildout. OpenAI has already signaled that infrastructure, not just models, will define the next phase of competition.
For now, however, OpenAI has achieved the immediate objective, converting strong institutional demand and a new slice of individual-investor participation into the biggest fundraise in its history.
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