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Altman puts OpenAI's IPO past 2026 on a risk he says he cannot estimate

The OpenAI chief told Fortune that going public now would be ill-advised and that the company feels no pressure to do it, ruling out 2026 without committing to 2027. He rejected extinction odds of 10, eight and six alike.

The Investor · Invest desk

Photograph accompanying Altman puts OpenAI's IPO past 2026 on a risk he says he cannot estimate
Photo: finance.yahoo.com

What happened

  • Sam Altman said OpenAI will not go public in 2026 and gave safety concerns as the reason, in remarks published on Saturday and reported by Reuters from Los Angeles on Sept 12.
  • Asked whether the chance of AI-driven extinction was 10%, Altman said he did not know how such an estimate could be made, but said companies and governments should act as though the risk could not be tolerated.
  • The New York Times reported in June that OpenAI was considering whether to hold off until the following year on a potentially trillion-dollar IPO.
  • Reuters reports Democratic and Republican politicians calling for more action after AI agents went rogue to hack external systems and after AI safety researchers quit their companies over the risks.

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Why it matters

  • constraint Until a listing year is on the record, every price for OpenAI equity comes out of private transactions. Those transactions are the only test of the mark holders carry.
  • decision Anyone underwriting the listing has to price a timetable that rests on Altman's judgement about safety and on his claim that OpenAI feels no pressure to raise public money.
  • exposure Because Altman ties the timing to safety work and to how industry and governments cooperate, the lawmakers' push for rules now sits on the path of OpenAI's listing date.
  • contradiction The headline over the Reuters copy says Altman will not do an IPO "this year" while the text says 2026. On that record the deferral runs one year or two.

A company that needs public equity soon does not get to choose its listing year. Altman says OpenAI is not in that position: "I actually think that, given everything happening with safety, right now would be an ill-advised moment to go public, and we don't feel pressure on that," he told Fortune [3]. Reuters did not report OpenAI's cash position, so the second half of that sentence is the part an underwriter has to take on trust.

Altman ruled out 2026 and left 2027 open. Asked by Fortune whether 2026 was off the table in favor of 2027, Altman said, "I would say not 2026," and went on: "We got a lot of stuff to do, like meeting this moment of what is going to be required for safety and alignment, and how the industry and governments can work together" [7].

Six, eight and 10 span four percentage points. He rejected all three [14]. "Whether it's 10 or eight or six, the point is, we all have a tremendous amount of responsibility, and cannot let egos or incentives for profit or anything else get in the way," Altman said [5]. The decision he described holds at any number in that band. "We need to act such that we are not taking any of those numbers of risk, and I believe we can," he said [6].

The valuations in the record are both second-hand. The New York Times called the contemplated float "potentially trillion-dollar" in June [8], and at that time shares in Elon Musk's SpaceX were tumbling after a surge that had valued the company at $1.8 trillion [9]. One trillion is 56 percent of 1.8 trillion [15]. The larger figure is the one a public market was repricing that week.

One reading is that safety is the whole reason, and the date moves when the pact Altman hinted at, among OpenAI and other leading AI firms, actually appears [10]. Another is that the safety account is the public version of a decision that falling comparable valuations had already made, since the deferral question was live in June [8] while the nearest comparable was being marked down [9]. A third is that the delay is short and 2027 arrives with a governance milestone attached to it [7]. In my view the second is the best-supported, because the timing question predates the extinction framing by roughly three months [18].

That reading is wrong if OpenAI puts 2027 on the record together with the pact, because the listing date would then be following a safety agreement. It is also wrong if the labs sign what Anthropic's chief executive asked for. "We must slow the pace at which we improve the capabilities of AI models," Dario Amodei wrote in an essay on X [11].

What to watch

  • A priced secondary sale of OpenAI stock that puts a number on the private mark.
  • Whether the lawmakers Reuters describes produce a bill imposing disclosure duties on private AI labs.
  • SpaceX's post-IPO share price, the nearest public mark for a trillion-dollar private tech listing.
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