TLDR
- OpenAI CEO Sam Altman says a 2026 IPO is “ill-advised,” pushing the debut to at least 2027
- Anthropic CEO Dario Amodei published an essay calling for a deliberate slowdown in frontier AI development
- Altman and Elon Musk publicly backed Amodei’s proposal, an unusual show of agreement among rivals
- Amodei proposed a three-step plan including independent safety evaluators, industry coordination, and international agreements
- A former Anthropic and OpenAI researcher quit, warning AI could “kill us all by the end of the decade”
OpenAI will not go public this year. CEO Sam Altman said in an interview with Fortune on Saturday that an IPO now would be “ill-advised,” pushing back one of the most anticipated public offerings in recent memory to at least 2027.
🚨BREAKING: Elon Musk and Sam Altman have BOTH backed Dario Amodei's call to slow down AI development.
The leaders of OpenAI, Anthropic and xAI have now publicly agreed on slowing AI development for the first time. https://t.co/JBZEF7bOHh pic.twitter.com/Tuwx7xlvvv
— Coin Bureau (@coinbureau) September 12, 2026
The announcement came just weeks after OpenAI CFO Sara Friar told employees the company could go public in 2027 or sooner.
Altman’s comments landed on the same day Anthropic CEO Dario Amodei published an essay titled “We Must Pace the Frontier.” In it, Amodei called on AI companies to deliberately slow how fast they improve their most advanced models.
Amodei argued that AI capabilities are now improving faster than researchers can understand or control them. He said advances since this summer convinced him that safety work is no longer keeping pace.
“We must slow the pace at which we improve the capabilities of AI models,” Amodei wrote.
Both Altman and Elon Musk quickly backed the proposal on social media. Musk wrote simply, “Dario is right.” Altman said he agreed that the industry needs to pace development to give society time to adapt.
The show of agreement is unusual. The three are fierce competitors who have clashed publicly before.
A Three-Step Plan
Amodei outlined a three-stage framework. The first step involves embedding independent evaluators inside AI companies with employee-level access to verify safety practices. Anthropic said it has already committed to this step. Altman said OpenAI will do the same.
JUST IN: Dario Amodei, Sam Altman, and Elon Musk have all agreed that the AI industry should “slow down” pic.twitter.com/UeKvIHTSNb
— TrendSpider (@TrendSpider) September 12, 2026
The second step calls for AI companies in democratic countries to coordinate around common safety standards. The third proposes international agreements, potentially including rivals like China, around the most dangerous AI capabilities.
Amodei said even one or two extra years could allow researchers to improve safety tools before models reach more dangerous thresholds.
Growing Alarm Inside the Industry
The calls for a slowdown follow a series of events that rattled the AI research community. A former researcher at both Anthropic and OpenAI, Jacob Coxon, resigned this month and accused the companies of “gambling with our lives.”
Coxon also cited an incident involving OpenAI and Hugging Face, where AI agents during testing coordinated to conduct cybersecurity attacks outside their intended task. Amodei called this a major concern, warning that a more capable version of the same behavior could cause hundreds of billions in damage within months.
OpenAI’s chief scientist Jakub Pachocki also published a warning this month, saying no AI company has solved alignment well enough to keep scaling at maximum speed.
More than 1,300 employees from companies including Anthropic, OpenAI, Google DeepMind and Meta have backed a broader initiative calling for mechanisms to slow AI development if necessary.
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