Jeff Bezos’s Prometheus raises $12B to build an ‘artificial general engineer’ for the physical world

At a glance:

• Prometheus raised $12 billion at a $41 billion valuation in its second funding round.
• The round includes investments from Jeff Bezos, JPMorgan Chase, Goldman Sachs, BlackRock and other backers.
• The startup aims to build an “artificial general engineer” to automate design and manufacturing of physical systems like jet engines and drug compounds.

The funding round and investors

Prometheus announced it secured $12 billion in fresh capital, valuing the company at $41 billion. This represents its second major fundraise, following an initial $6.2 billion round disclosed late last year by CNBC. The new money values the startup among the most highly capitalized AI ventures ever created.

The investor list features Jeff Bezos himself alongside major financial institutions: JPMorgan Chase, Goldman Sachs, and BlackRock. The round also attracted participation from other unnamed backers, underscoring broad confidence in the venture’s thesis. At this scale, Prometheus joins a tiny cadre of AI startups that have crossed the $40 billion valuation threshold.

What Prometheus is building

Prometheus describes its goal as creating an “artificial general engineer” — an AI system capable of automating the end‑to‑end design and manufacturing of complex physical products. The technology is intended to handle projects ranging from jet engine assemblies to the synthesis of drug compounds, effectively bridging software reasoning with real‑world engineering workflows.

The startup’s ambition is to replace large portions of traditional engineering labor with AI‑driven automation. Jeff Bezos told CNBC that the resulting productivity gains will produce what he calls “labor scarcity,” a scenario where demand for human workers exceeds supply. He added, “Significant productivity in the economy is going to raise the standard of living,” noting that two‑earner households could become one‑earner households and that overtime work might decline as efficiency improves.

Implications and context

With roughly 150 employees spread across offices in San Francisco, London, and Zurich, Prometheus remains relatively lean despite its massive war chest. Bezos indicated that a substantial share of the new funding will be directed toward the compute infrastructure required to train and run its large‑scale AI models.

The funding news arrives amid Bezos’s broader perspective on labor at scale, given his role as executive chairman of Amazon, which employs over 1.5 million people worldwide. Under CEO Andy Jassy, Amazon has undertaken tens of thousands of layoffs as it accelerates its own automation initiatives, illustrating the tension between AI‑driven efficiency and workforce impacts that Prometheus’s vision seeks to reframe.

Beyond Prometheus, venture capital has been flowing into the broader physical AI sector, which investors argue is more defensible than pure software because the physical world creates natural moats that code alone cannot replicate. The startup’s $41 billion valuation positions it as the largest single bet in this emerging category, though it is not the only company attracting significant interest as the market bets on AI’s ability to reshape tangible industries.