Sources say OpenAI may delay its IPO to 2027, while Anthropic's valuation climbs to $965 billion.

OpenAI is considering delaying its initial public offering (IPO) to 2027, a shift from the market’s earlier expectation of a fourth-quarter 2026 listing. Reports say OpenAI confidentially filed its S-1 document back in May this year, but due to factors including the cooling tech stock market and waning hype around SpaceX’s IPO, the company is leaning toward slowing down its listing pace while keeping its valuation target of roughly $1 trillion. Meanwhile, Anthropic closed a new financing round in May, lifting its valuation to around $965 billion, and has also submitted a confidential S-1 filing—marking the first time its private valuation has surpassed OpenAI’s. The report also notes that the U.S. government is ramping up regulation of cutting-edge AI models. Earlier, Anthropic’s Mythos 5 and Fable 5 were temporarily taken offline due to export controls; Mythos 5 has since been cleared for re-access by roughly 100 U.S. critical infrastructure entities, while Fable 5 remains unavailable. Separately, OpenAI has adopted a phased rollout strategy for its GPT-5.6 model at the U.S. government’s request. Analysts argue that as OpenAI and Anthropic approach trillion-dollar valuations, the U.S. government is emerging as a critical influencer shaping the release, deployment, and commercialization of cutting-edge AI models.