The check cleared on Thursday. All $110 billion of it.
OpenAI's latest financing round—announced February 27, 2026—isn't just the largest private funding haul in corporate history. It's a complicated piece of financial engineering wrapped in strategic partnerships that, depending on who you ask, either secures the AI leader's runway for years or binds it to obligations that could reshape how it builds and sells the future of artificial intelligence.
At a $730 billion pre-money valuation, the round pushes OpenAI's theoretical worth to nearly $840 billion post-money. For context, that exceeds the market capitalization of Walmart. And the round isn't even closed yet—the company says it remains open to additional financial investors, though it's anyone's guess who might still have appetite at this valuation.
Leading the charge: Amazon, NVIDIA, and SoftBank, each bringing billions and, more critically, strategic entanglements that complicate OpenAI's existing web of relationships.
The Money, and What Comes With It
Amazon's commitment is the most eyebrow-raising. The e-commerce and cloud giant pledged $50 billion total, structured as $15 billion upfront with another $35 billion tied to milestones OpenAI hasn't disclosed. (Industry watchers speculate these could involve product launches, revenue targets, or compute deployments—but the company isn't saying.)
NVIDIA and SoftBank each put in $30 billion. For NVIDIA, this deepens a relationship that already includes 3 gigawatts of dedicated inference capacity and 2 gigawatts of training infrastructure on its Vera Rubin systems. The chip giant had signaled last September, via a letter of intent, that it might deploy at least 10 gigawatts of systems for OpenAI and invest up to $100 billion. This round appears to formalize a chunk of that ambition.
SoftBank, meanwhile, continues its pattern of making outsize bets on AI—a strategy that's yielded both spectacular returns and notable stumbles over the years. For the Japanese conglomerate's Vision Fund, OpenAI represents perhaps the most concentrated wager on the technology's commercial future.
The capital injection also balloons the value of the OpenAI Foundation's stake in the for-profit OpenAI Group to over $180 billion, a figure the company highlighted in its announcement. That stake has become a peculiar artifact of OpenAI's evolution from nonprofit research lab to one of the most valuable private companies on earth.
AWS Gets a Seat at the Table—With Conditions
Here's where things get intricate. As part of Amazon's investment, AWS becomes the exclusive third-party cloud distribution provider for OpenAI Frontier, the company's enterprise platform for building and deploying AI agents. Think of it as OpenAI's bid to let corporations create custom AI systems—a market analysts believe could dwarf consumer chatbot subscriptions.
OpenAI also committed to consuming roughly 2 gigawatts of Amazon's Trainium chip capacity, a notable win for Amazon's in-house silicon ambitions. The partnership includes co-development of customized models for Amazon's own applications and a new Stateful Runtime Environment on Amazon Bedrock, Amazon's managed AI service.
That's a lot of strategic strings attached to capital.
Microsoft Holds Steady (For Now)
If you're keeping score at home, you might wonder: what about Microsoft? The Redmond software giant has been OpenAI's closest partner since investing $1 billion back in 2019, later pouring in billions more. Does the Amazon deal change that?
Not exactly. Microsoft's core arrangements remain untouched, according to OpenAI. Azure continues as the exclusive cloud provider for OpenAI's stateless APIs—including API usage from third-party collaborations. Microsoft retains its exclusive license and intellectual property access across OpenAI's models and products. The revenue-share structure? Unchanged. OpenAI's first-party products, including Frontier, still run on Azure infrastructure.
Microsoft holds approximately 27% of OpenAI on an as-converted diluted basis, a stake that emerged from the company's October 2025 recapitalization into a public benefit corporation structure. (Yes, OpenAI now operates under a PBC framework, a shift that raised eyebrows among nonprofit governance experts at the time.)
Still, the Amazon deal represents a subtle rebalancing. OpenAI is diversifying its dependencies—smart, perhaps, given the scale of compute it needs. But it also introduces potential friction points. Managing competing interests from Amazon, Microsoft, and NVIDIA will require diplomatic finesse.
The Numbers Behind the Hype
OpenAI's user metrics justify some of the exuberance. The company claims over 900 million weekly active users for ChatGPT, more than 50 million consumer subscribers, and north of 9 million paying business users. Weekly Codex users—the developer-focused tool—hit 1.6 million, more than tripling since January 2026 began.
Revenue tells a similarly aggressive story. OpenAI brought in approximately $13 billion in 2025. By January 2026, the company's CFO said annualized revenue had crossed $20 billion. If sustained, that trajectory would make OpenAI one of the fastest-growing software businesses in history.
But growth comes with a price tag. OpenAI is targeting roughly $600 billion in compute spending through 2030, according to a February 20 Reuters report. That's not a typo. Six hundred billion dollars. To put it mildly, this is not a business that runs lean.
A Funding Trajectory That Keeps Breaking Records
The $110 billion round makes OpenAI's previous fundraising look almost quaint by comparison—though "quaint" is relative. In March 2025, the company raised $40 billion at a $300 billion post-money valuation in a SoftBank-led round, which held the record for largest private financing at the time. Before that came an October 2024 round: $6.6 billion at a $157 billion post-money, led by Thrive Capital with participation from Microsoft, NVIDIA, and SoftBank.
The escalation is dizzying. And it points to something perhaps more fundamental than OpenAI's own prospects: a belief among investors that whoever controls the leading AI infrastructure will command extraordinary leverage over the economy of the next decade. Whether OpenAI can deliver on that promise remains an open question.
Multiple outlets have reported the company is eyeing an initial public offering as early as the second half of 2026. If it happens, it would be one of the most anticipated tech listings since Facebook—and likely far more complicated, given the tangled web of partnerships, governance structures, and strategic obligations OpenAI now carries.
For now, the $110 billion is in hand. What comes next will determine whether this funding round is remembered as the moment OpenAI secured its dominance—or the moment it became too big, too beholden, and too complex to move with the agility that made it a phenomenon in the first place.
