Analysis
Two numbers landed in the same 48-hour window this week that are worth putting side by side rather than reading in isolation. OpenAI is negotiating a private round, reportedly up to $1.5 trillion, against its $730 billion mark from March -- a $770 billion increase in six months.
Anthropic is preparing an IPO that reports suggest could value it above $2 trillion, against its $965 billion Series H from August -- more than double in roughly a quarter.
“Whichever of these two prints first will set the reference point the other gets measured against for the rest of the year.”
Add the two increases together and the frontier-AI sector is on track to mark up close to $1.7 trillion in paper valuation in a single week of reporting, without either number reflecting an actual closed transaction yet. For comparison, Nvidia's entire market capitalization took roughly a decade to compound from tens of billions to the trillion-dollar range it first crossed in 2023; these two private numbers, if they hold, would replicate that scale of value creation in a fraction of the time, on unaudited private marks rather than public-market price discovery.
Neither number is fabricated -- both come from real, on-the-record reporting (Fortune, Forbes and Bloomberg) -- but both are also proposals and negotiations, not signed term sheets or a priced IPO. History with 2026's other megarounds suggests the final print often lands below the opening ask: OpenAI's own March round closed at $730 billion after early chatter of a higher number. Whichever of these two prints first will set the reference point the other gets measured against for the rest of the year.