Bezos-backed Prometheus raises $12B to build an "artificial general engineer"
Project Prometheus, co-led by Jeff Bezos and former Verily scientist Vik Bajaj, raised about $12 billion in a Series B at roughly a $41 billion valuation — months after launching with $6.2 billion. Its ambition is an "artificial general engineer": software that automates the design and manufacturing of complex physical things, from jet engines to drug compounds. It's running lean at around 150 people across San Francisco, London, and Zurich, backed by JPMorgan, BlackRock, Goldman Sachs, DST Global, and Arch Venture Partners, with no corporate ties to Amazon or Blue Origin.
Why it matters: Nearly all the AI capital so far has flowed into software and chatbots, so a bet this large on AI for the physical world is a directional signal about where sophisticated investors think the next frontier sits. A $41 billion valuation on a months-old company with 150 people is not priced on revenue — it's priced on the thesis that models which design real machines could be worth vastly more than models that generate text. The hard part, and the reason to stay skeptical, is that physical engineering lives under constraints text generation never faces: physics, materials, tolerances, and manufacturing feedback loops that punish a plausible-but-wrong answer far more brutally than a hallucinated paragraph. If Prometheus works, it reframes AI's ceiling from knowledge work to the industrial base itself; if it stalls, it becomes the cautionary tale about applying language-model intuitions to domains where being confidently wrong has real-world costs. Either way, the sheer size of the raise pulls talent and attention toward physical-world AI, which reshapes the field regardless of this one company's fate.