OpenAI IPO Delayed Past 2026: Sam Altman Says 'Ill-Advised' Moment to Go Public
Updated October 30, 2026. In a Fortune interview published September 12, 2026, Sam Altman said OpenAI will not go public this year, calling it an "ill-advised moment" to list given the safety work he says the company needs to focus on. Pressed on timing, he said "not 2026" and gave no firm date. Six weeks later rival Anthropic publicly filed its own S-1. We explain what Altman actually said, why OpenAI's structure matters, and what a 2027 listing would depend on.
⚡ Quick facts
- What was said: Altman told Fortune (published Sept 12, 2026) that now would be an “ill-advised moment to go public”
- Timing: “Not 2026”; reports point to 2027, but Altman committed to no date
- Stated reason: focus on what is “required for safety and alignment”
- Structure: since October 2025 a public benefit corporation controlled by the nonprofit OpenAI Foundation; Microsoft holds about 27%
- Rival contrast: Anthropic publicly filed its S-1 on October 26, 2026 to list on Nasdaq as ANT
What Altman actually said
Altman's comments came in an interview with Fortune and were widely reported by Axios, CNBC and 24/7 Wall St.. He said "right now would be an ill-advised moment to go public", tied the delay to "meeting this moment of what is going to be required for safety and alignment", and, when asked directly, confirmed "not 2026". He also said OpenAI does not feel pressure to list and will go public when the business, and society's relationship with the technology, are ready.
The interview came the same day Anthropic CEO Dario Amodei published an essay urging frontier labs to slow down, which Altman and Elon Musk publicly backed (see our explainer on Amodei's proposal). Altman said leading labs "may be close to announcing a pact" on pacing.
Why the IPO had been expected
In October 2025 OpenAI completed a restructuring that turned its for-profit arm into a public benefit corporation controlled by the nonprofit OpenAI Foundation, which holds about 26%, with Microsoft holding about 27%. Nasdaq Private Market and others read that as clearing the path to an IPO, and reports through 2026 described preparations for a listing as soon as late 2026, possibly near a $1 trillion valuation. In August 2026 OpenAI ran an employee share buyback at a reported $852 billion valuation, and its CFO reportedly told staff an IPO would come in 2027 or sooner.
The governance tension
The old "capped-profit" model is gone, but the structure still puts a mission-driven nonprofit in control. Altman acknowledged that this means OpenAI sometimes makes decisions "not obviously in the interest of our business and our shareholders". Public markets can live with that, as dual-class tech companies show, but it has to be spelled out in a prospectus and accepted by investors. That is easier when a company is not also arguing publicly that the industry should slow down.
OpenAI versus Anthropic
A year ago, OpenAI looked likely to list first. Instead, Anthropic filed publicly on October 26, 2026, with a governance setup of its own: a Long-Term Benefit Trust and the co-founders can elect its whole board (see our Anthropic IPO explainer). The two labs now face the same question from opposite ends: whether safety-first governance and public shareholders can coexist.
What a 2027 listing would depend on
- The pacing debate: if labs formalise a slowdown pact, a growth-hungry public offering becomes harder to pitch.
- Funding needs: OpenAI's compute commitments are enormous; private rounds and buybacks can delay, but not remove, the need for public capital.
- Anthropic's debut: how ANT trades will shape what investors will pay for OpenAI.
Our take: read the delay carefully
- It is a "not now", not a "never". Altman ruled out 2026; he did not rule out an IPO.
- 2027 is reporting, not a commitment. Treat any specific date as speculation until a filing appears.
- Safety framing and strategy overlap. Delaying also avoids quarterly disclosure while costs are high. Both readings can be true.
- Watch for a public S-1. That is the only reliable signal that a listing is weeks away.
Sources
- 24/7 Wall St.: Sam Altman says an OpenAI IPO in 2026 would be 'ill-advised' (Sept 13, 2026)
- Axios: OpenAI delaying IPO amid AI safety concerns (Sept 12, 2026)
- CNBC: OpenAI rules out IPO this year as Altman, Musk and Amodei warn AI is moving too fast (Sept 12, 2026)
- Techzine: Altman postpones OpenAI IPO due to AI risks
- Nasdaq Private Market: OpenAI restructuring and the IPO path
Frequently asked questions
Is OpenAI going public in 2026?
No. In a Fortune interview published September 12, 2026, Sam Altman said OpenAI will not go public in 2026 and called it an “ill-advised moment” to list.
Why did Altman delay the OpenAI IPO?
He tied the decision to safety, saying OpenAI needs to focus on what is required for safety and alignment, and said the company feels no pressure to list. Governance trade-offs in its nonprofit-controlled structure also play a part.
When will OpenAI IPO?
There is no confirmed date. Reports point to 2027, and OpenAI's CFO reportedly told staff an IPO would come in 2027 or sooner, but Altman did not commit to any year beyond ruling out 2026.
Is OpenAI still a capped-profit company?
No. In October 2025 OpenAI restructured its for-profit arm into a public benefit corporation controlled by the nonprofit OpenAI Foundation, which holds about 26%, while Microsoft holds about 27%.
How much is OpenAI worth?
OpenAI ran an employee share buyback in August 2026 at a reported $852 billion valuation. Earlier IPO reports discussed a valuation near $1 trillion.
Will Anthropic go public before OpenAI?
It looks likely. Anthropic publicly filed an S-1 on October 26, 2026 to list on Nasdaq as ANT, while OpenAI has ruled out a 2026 listing.