OpenAI leadership has driven the 97.5% market-implied probability against a $1 trillion-plus IPO before 2027 by explicitly ruling out a 2026 listing. CEO Sam Altman cited AI safety and alignment priorities in September statements, while CFO Sarah Friar targeted 2027 as the goal during internal updates. The company filed a confidential SEC prospectus in June but has since pursued bridge financing through a new private round at roughly $1.4 trillion valuation, following its $852 billion March round. Strong revenue growth in large language model APIs supports operations without public-market pressure. A last-minute acceleration remains possible only if safety benchmarks advance rapidly or regulatory windows open unexpectedly, though current timelines and capital strategy make this highly improbable.