OpenAI plans September IPO filing after Musk lawsuit dismissal

OpenAI’s Accelerated Path to Public Markets

OpenAI is moving decisively toward a September 2026 initial public offering, according to reporting by the Wall Street Journal cited by TechCrunch AI. The decision follows the dismissal of a lawsuit filed by Elon Musk that had threatened the company’s corporate structure and financial standing. OpenAI CEO Sam Altman is orchestrating preparations with Goldman Sachs and Morgan Stanley as lead underwriting firms, with confidential regulatory filings potentially arriving within days or weeks.

The timing marks a critical inflection point for the generative AI sector’s capital formation. An OpenAI IPO of this scale would represent one of the largest technology public offerings in recent history, setting a valuation baseline for the entire large language model industry.

The Competitive Filing Race

The OpenAI IPO announcement intersects with a parallel timeline involving Elon Musk’s competing venture. According to TechCrunch AI, SpaceX is preparing its own IPO filing expected as soon as mid-May 2026, following its acquisition of xAI. Musk now operates xAI as part of SpaceX’s holding structure, positioning rocket manufacturing and artificial intelligence development under the same corporate umbrella.

This dual-track IPO race reshapes the competitive landscape between Altman and Musk, shifting their rivalry from legal proceedings into public equity markets. The filing calendars suggest both companies are simultaneously marketing themselves to institutional investors during the same capital-raising cycle.

Why This Matters

Growth equity and multi-strategy investors evaluating AI-infrastructure valuations face an unprecedented decision point. Two competing visions for AI’s role in technology—OpenAI’s pure-play generative model approach versus SpaceX-xAI’s integrated infrastructure-plus-intelligence model—will be priced simultaneously in public markets by September 2026. This dual disclosure will anchor investor expectations for comparable AI companies going public afterward, making the relative valuations and post-IPO trading performance consequential for fundraising multiples across the sector through 2027.