OpenAI hits $500B valuation to surpass SpaceX

Elon Musk's SpaceX has held the crown for the world’s most valuable private startup for quite a while. That era is officially over, and the company taking the top spot is one Musk co-founded and now openly despises.

Current and former OpenAI employees just sold about $6.6 billion worth of shares in a secondary transaction. The deal rockets OpenAI’s valuation to a staggering $500 billion, easily blowing past SpaceX’s $400 billion mark.

The roster of buyers includes SoftBank, Thrive Capital, Dragoneer Investment Group, Abu Dhabi’s MGX, and T. Rowe Price. It marks a huge jump from August, when OpenAI raised $40 billion at a $300 billion valuation.

A $6.6B payday with chips left on the table

Because this was a secondary share sale, none of that $6.6 billion goes into OpenAI’s corporate bank account. It goes directly into the pockets of the workers building the models.

Interestingly, OpenAI had actually cleared over $10 billion worth of stock for employees to unload. The fact that they sold only about two-thirds of what was allowed suggests internal staff still believe there’s plenty of upside ahead.

Still, providing that liquidity is crucial right now. Meta has been aggressively poaching AI researchers for its new superintelligence unit, offering eye-watering nine-figure compensation packages and multimillion-dollar signing bonuses. Meta already lured away at least seven top engineers from OpenAI this summer, making cash-out options an urgent defensive measure.

Massive compute checks and a looming boardroom overhaul

OpenAI’s soaring valuation comes with an equally breathtaking burn rate.

Internal numbers show the company brought in $4.3 billion in revenue in the first half of 2025 while burning $2.5 billion in cash. Yet its upcoming commitments dwarf those figures.

OpenAI has committed to spending $300 billion on Oracle Cloud Services over the next five years, alongside hardware tie-ups with SK Hynix. In September, Nvidia also mapped out a $100 billion investment in OpenAI as part of a joint infrastructure push, fueling talk of circular financing.

Meanwhile, OpenAI is hammering out a transition from its original nonprofit roots into a for-profit public benefit corporation. Musk is actively suing to freeze the move, claiming it breaks founding promises made back in 2015. If courts get in the way of the restructuring, settling the stakes from this latest transaction could get very messy.

Why it matters

Crossing the half-trillion-dollar threshold proves that elite institutional money believes the frontier AI story is nowhere near peaking.

For developers and everyday enterprise users, OpenAI’s ability to generate this kind of private liquidity guarantees its compute pipeline stays fed. Recent product drops like GPT-5 and the new Sora 2 feed show no signs of slowing down. But it also means OpenAI will be under brutal pressure to monetize every interaction, so don't count on frontier API pricing hitting rock bottom anytime soon.

From an industry standpoint, we think OpenAI played this liquidity event smartly as talent insurance. Stock options are only effective golden handcuffs if employees believe they can turn them into cash; this sale neutralizes some of Meta’s wild cash offers.

However, the risk profile here is massive. Pledging $300 billion to Oracle while relying on overlapping investment loops with Nvidia leaves little room for error. If commercial revenue cannot ramp up dramatically before those infrastructure bills come due, maintaining a $500 billion narrative will test even Sam Altman’s fundraising wizardry.