OpenAI Considers Postponing 2027 IPO Amid Regulatory Review of Anthropic Deal

OpenAI, the developer behind the ChatGPT series, is reportedly reassessing its plan to go public in 2027 after the U.S. government cleared a separate investment by Anthropic in the startup’s upcoming language model, Mythos 5. The regulatory clearance, which addressed antitrust concerns, suggests heightened scrutiny of large AI collaborations and could affect OpenAI’s timeline for a potential initial public offering.

Sources close to the company indicate that the decision to delay the IPO is driven by a desire to avoid market uncertainty while the broader AI sector faces increased oversight. The clearance of Anthropic’s investment may set a precedent for how future AI mergers and funding arrangements are evaluated by regulators, potentially influencing the strategic choices of other firms in the industry.

For investors, the postponement signals that OpenAI may prioritize operational stability and compliance over rapid capital market entry. The move could also impact valuation expectations for AI-focused public listings, as market participants await clearer guidance on regulatory standards. The broader market may see a temporary slowdown in high‑profile AI IPO activity as companies adjust to the evolving oversight environment.