OpenAI, Anthropic, SpaceX Are All Going Public: Here's What to Know

Just a week after Anthropic confidentially filed for its own IPO and days before Elon Musk's SpaceX is expected to make its public market debut, OpenAI has filed paperwork with the U.S. Securities and Exchange Commission (SEC), joining a growing list of high-profile technology companies preparing for Wall Street.

OpenAI, the company behind ChatGPT, most recently reached a post-money valuation of roughly $852 billion. Anthropic was recently valued at $965 billion after a Series H funding, while SpaceX is expected to pursue a valuation of about $1.77 trillion in its upcoming public debut, according to CNBC.

By filing confidentially, OpenAI can submit financial information to regulators for review before publicly releasing those details. The company is reportedly targeting a market debut as early as the fourth quarter of this year.

Its filing is also the latest sign that some of the world's most valuable private technology companies are beginning to look beyond venture capital and private funding markets as they pursue their next phase of growth.

Why AI companies suddenly need Wall Street 

The timing isn't accidental. Building frontier AI systems has become increasingly expensive. Companies are spending billions of dollars on computing infrastructure, advanced chips, data centres, research talent, and model development as they compete to build more capable AI systems.