OpenAI is reportedly set to confidentially file its IPO prospectus as soon as Friday, aiming for a public market debut that could be one of the largest in history. With a valuation exceeding $850 billion, OpenAI is collaborating with Goldman Sachs and Morgan Stanley to prepare for this significant step. The company has raised over $180 billion from investors and has been under pressure to demonstrate its financial viability as it continues to incur substantial cash burn. OpenAI's CFO, Sarah Friar, noted the importance of maintaining a public company appearance, although she refrained from commenting on the exact timing of the IPO.

The competitive landscape is heating up, particularly with Elon Musk's SpaceX, which is also preparing to file its IPO prospectus. SpaceX was recently valued at $1.25 trillion and is expected to make a significant market impact. Meanwhile, OpenAI faces stiff competition from Anthropic, which is in discussions to secure funding at a $900 billion valuation, highlighting the fierce rivalry in the AI sector. This situation reflects the ongoing tensions between Musk and OpenAI's CEO, Sam Altman, particularly following Musk's legal actions against OpenAI's leadership regarding its nonprofit status.