Introduction
OpenAI will not go public this year, CEO Sam Altman confirmed in an interview with Fortune published on September 12, 2026, calling an initial public offering right now "ill-advised." The announcement pushes back one of the most anticipated stock market debuts in history to at least 2027, and it landed on the same day Anthropic CEO Dario Amodei published a widely discussed essay calling on AI companies to deliberately pace how quickly they improve their most advanced models.
What Altman Said About the IPO
Altman's comments mark a shift from OpenAI's own recent internal messaging. Just last month, OpenAI Chief Financial Officer Sarah Friar told employees the company would likely go public in 2027 or possibly sooner "if our business continues to inflect." Citing growing concerns about AI safety, Altman's latest remarks suggest that timeline itself is now in question, with growing unease about the pace of AI development factoring directly into the company's public market plans.
Key Facts
- Sam Altman said an OpenAI IPO this year would be "ill-advised."
- The decision pushes a potential listing to 2027 at the earliest.
- Anthropic CEO Dario Amodei published an essay the same day proposing a three-step plan to pace AI capability development.
- Both Altman and Elon Musk publicly backed Amodei's proposal.
- Anthropic itself is separately preparing for what is expected to be a historic IPO of its own, with no confirmed timeline disclosed.
Inside Amodei's Pacing Proposal
Amodei's essay argued that slowing or pausing AI development, an idea that has circulated since 2023, made "little sense" back then because models were not yet powerful enough to act meaningfully in the real world or capable of significant deception, manipulation or cyberattacks. His three-step plan is explicitly designed to temper the pace of frontier development without, in his words, sacrificing commercial advantage or the United States' lead in AI globally, an attempt to bridge safety caution with continued competitiveness against rival labs, including those based in China.
Table: Reactions to Amodei's Proposal
| Figure | Response |
|---|---|
| Sam Altman (OpenAI) | Publicly agreed the industry needs to pace advanced AI development; said the topic has been a "primary topic" internally in recent weeks |
| Elon Musk | Posted in support, writing "Dario is right" |
| OpenAI Chief Research Officer Jakub Pachocki | Said he hopes voluntary slowdowns become commonplace until shared safety benchmarks are established |
An Unusual Show of Agreement Among Rivals
The alignment between Altman, Amodei and Musk stands out given how fiercely competitive the three have been, both commercially and personally, over the direction of AI development in recent years. In a post on X, Altman said he agreed with Amodei's call for independent evaluators with employee-like access to frontier labs, adding that OpenAI would commit to a similar arrangement. That level of public consensus among three normally sparring rivals marks one of the more notable moments in the AI safety debate to date.
Why the IPO Decision and Safety Concerns Are Connected
Analysts note that Altman's IPO comments and Amodei's pacing essay, arriving on the same day, are unlikely to be coincidental. A public listing typically increases pressure on a company to prioritise growth metrics and quarterly performance, dynamics that could sit uneasily alongside a genuine commitment to more careful, deliberate AI development. By ruling out an IPO for now, OpenAI may be signalling that it wants to avoid public market pressures complicating its own internal safety and pacing considerations, at least in the near term.
Expert Insight
Industry watchers note that this sudden, public alignment on pacing does not equate to a binding commitment, and each lab retains full discretion over its own release schedule going forward. The more telling signal, they argue, will be whether OpenAI, Anthropic and other major labs visibly slow their actual model release cadence in the coming months, rather than continuing to ship at the same pace while publicly endorsing more cautious language.
Key Takeaways
- OpenAI has ruled out an IPO for 2026, pushing a potential listing to 2027 or later.
- Sam Altman called an IPO right now "ill-advised" amid growing AI safety concerns.
- Anthropic CEO Dario Amodei published an essay the same day proposing a plan to pace AI development.
- Elon Musk and Altman both publicly endorsed Amodei's proposal.
- Anthropic is separately preparing for its own future IPO, without a confirmed timeline.
FAQ
Why did OpenAI rule out an IPO this year?
CEO Sam Altman said a public listing right now would be "ill-advised," citing growing concerns about the pace of AI development and safety.
What did Dario Amodei propose?
Amodei published an essay proposing a three-step plan for AI labs to deliberately pace how quickly they improve model capabilities, without sacrificing US competitiveness in AI.
Did other AI leaders support Amodei's plan?
Yes, both Sam Altman and Elon Musk publicly backed the proposal, an unusual show of agreement among three normally competitive rivals.
Conclusion
OpenAI's decision to shelve IPO plans for now, paired with a rare public alignment among Altman, Amodei and Musk on pacing AI development, suggests the industry's safety conversation has moved from background concern to a factor actively shaping corporate strategy. Whether that translates into genuinely slower model releases, rather than just more cautious public rhetoric, remains the open question heading into 2027.
