A day after Elon Musk lost his lawsuit that sought to dismantle OpenAI’s structure, leadership, and finances, the AI powerhouse is reportedly preparing to launch its initial public offering, according to sources cited by the Wall Street Journal. OpenAI CEO Sam Altman is said to be aiming for the company to go public by September. The creator of ChatGPT has been collaborating with Goldman Sachs and Morgan Stanley, two leading investment banks known for handling major tech IPOs. OpenAI may also file its IPO paperwork confidentially with regulators within days or weeks, the WSJ reported.

The prospect of an OpenAI IPO—widely expected to be a blockbuster—emerges just as the world anticipates the public disclosure of SpaceX’s IPO filings, which could arrive as soon as Wednesday, per reports. Rocket manufacturer SpaceX is now a major rival to OpenAI, having absorbed Elon Musk’s AI model maker, xAI. With Musk’s failed attempt to cripple OpenAI, the company he co-founded, the next chapter in the Musk-Altman rivalry appears to be financial: a battle over which company will command the larger IPO.

OpenAI did not immediately respond to a request for comment.