Sam Altman’s consistent public support for pacing frontier AI development through statements and commitments to independent evaluators has not translated into signing the July 2026 employee-led Pacing the Frontier statement, which remains unsigned by him despite widespread participation from OpenAI staff and leaders at rival labs. With the September 30 deadline now only weeks away and no recent signals of intent, traders assign 96% probability to “No,” viewing his approach as favoring corporate endorsements and verbal alignment over personal addition to the document. While last-minute participation or an updated version of the statement could theoretically shift the outcome, the multi-month pattern of selective engagement makes such developments improbable absent a major unforeseen catalyst.