The number that will dominate the next round of OpenAI coverage is $1.2 trillion. The Financial Times reported on September 15 that investors have approached OpenAI about a new private funding round at roughly that pre-IPO valuation, which would be the company's first above a trillion dollars and a 41 percent step up from its March mark. OpenAI declined to comment, no round size has been reported, and the talks are described by every outlet that has covered them as early and investor-initiated.

That last detail is worth pausing on. In most fundraising stories, the company shops itself. Here, per the FT's reporting, longtime backers are exploring how to increase their exposure ahead of an eventual public listing, which means the $1.2 trillion figure is, for now, a bid rather than a price. It is a number that tells you what investors think the company will be worth, not what anyone has agreed to pay.

The revenue behind the number

The valuation math rests on one verified anchor: OpenAI's annualized revenue run rate topped $40 billion in August, according to Bloomberg, roughly double the $20 billion pace at the end of 2025. Second-quarter revenue was $6.7 billion, up from $5.7 billion in the first quarter, and enterprise revenue has overtaken consumer revenue months ahead of schedule. At $1.2 trillion, the reported valuation implies about 30 times a $40 billion run rate.

For context, that is a premium to the market's other AI benchmarks. Anthropic raised $65 billion in May at a $965 billion post-money valuation, and by July its annualized run rate had reached about $65 billion, higher than OpenAI's on the most recent figures. Anthropic is further along the public path, with a confidential S-1 on file and a listing targeted for around the midterms. xAI's January round valued it at about $230 billion on $20 billion raised. OpenAI's own trajectory is steeper: roughly $500 billion in a late-2025 secondary sale, $730 billion pre-money in the February announcement, and $852 billion post-money at the March 31 close of the largest private funding round in history, with $122 billion in committed capital.

The footnote

The burn rate is the part of this story the valuation headline hides. HSBC projects OpenAI will burn roughly $17 billion in cash in 2026, more than $46 million a day, rising to $35 billion in 2027 and $47 billion in 2028. Deutsche Bank puts cumulative negative free cash flow at $143 billion across 2024 through 2029. The company lost $38.5 billion in fiscal 2025 on $13.07 billion of revenue, and does not expect to break even before 2030. Only about 5 percent of weekly users pay for the product, and the company holds roughly $1.4 trillion in compute commitments.

Even the March round carries caveats that temper its headline size. Much of the capital is conditional: $35 billion of Amazon's $50 billion commitment is tied to an IPO or an AGI milestone, and Nvidia's $30 billion is compute credits rather than cash. SoftBank, the round's anchor, took a $40 billion bridge loan to fund its commitment, and its lenders reportedly balked at accepting OpenAI shares as collateral, cutting a margin-loan target from $10 billion to $6 billion. Bears have made careers of this gap: George Noble called the earlier round "borderline criminal," and Ed Zitron's bubble essay and Michael Burry's positioning sit on the same side of the argument. The counterargument, made implicitly by every investor still wiring money, is that the compute race is winner-take-most and that OpenAI's enterprise share is compounding faster than its losses.

The IPO clock

Sam Altman has now put his own timeline on the record. Asked in a Fortune interview published September 12 whether an IPO was imminent, he said "right now would be an ill-advised moment to go public," citing everything happening with safety, and told the interviewer not to expect a listing in 2026. The company filed a confidential IPO prospectus in June, and its CFO has told employees 2027. A funding round at a trillion-plus valuation would give the company time and pricing power: it could raise without the disclosure regime of a public company while setting a reference point for the eventual float.

The reported $1.2 trillion talks make the most sense as IPO preparation, not desperation. A company that needed cash would be named as the seller; a company being chased by investors has choices. But the arithmetic still runs two ways. At 30 times a $40 billion run rate, the valuation assumes revenue keeps compounding at the current pace for years. The $17 billion burn figure assumes losses compound too. Both numbers cannot be permanent, and the round that reconciles them will be the first test of which one bends.

Primary sources

  1. Financial Times, via Yahoo Finance syndication, "OpenAI considers funding round at $1.2tn valuation ahead of delayed IPO," for the reported talks, their investor-initiated nature, and OpenAI's no-comment.
  2. Fortune, interview with Sam Altman, for his statement on IPO timing.
  3. CNBC, reporting on CFO Sarah Friar's investor presentation, for the $40 billion-plus run rate and enterprise surpassing consumer revenue.
  4. Reuters, via Zawya syndication, for the early-stage characterization and the prior $852 billion round.