OpenAI CEO Sam Altman publicly ruled out a 2026 IPO in a September 2026 Fortune interview, citing the need to prioritize AI safety work amid rapid capability advances in large language models. The company has shifted focus to a bridge private round targeting at least $30 billion at roughly $1.4 trillion valuation, following its $852 billion March close, while its confidential S-1 filing from June remains on hold for a 2027 debut. Strong revenue growth toward $40-70 billion annualized has not altered the explicit timeline, as leadership emphasizes internal milestones over near-term public listing. With roughly 10 weeks left in 2026, the 97% market-implied probability of no $1 trillion-plus IPO reflects this clear executive stance and operational pivot, though an unexpected acceleration in safety reviews or market window could theoretically intervene.