Series B · AI

Prometheus raises $12 billion Series B for AI engineering tools

Jeff Bezos and Vik Bajaj’s company is developing AI for designing, testing and manufacturing physical products.

Series B financing

Prometheus announced a $12 billion Series B on June 11, 2026, at a valuation of approximately $41 billion. In a CNBC interview, co-founder Jeff Bezos confirmed that the round had concluded and that he had invested again.

Tools for engineers

Bezos and co-founder Vik Bajaj described AI tools spanning design, simulation and manufacturing. The company is investing in models, compute and research infrastructure for engineering work on physical products.

Use of funds

Build AI models and engineering tools for the design, testing and manufacturing of physical products.

Invest in compute and research infrastructure.

Funding history

Series B · This round$12B

Sources

  1. CNBC exclusive transcript: Prometheus co-founders Jeff Bezos and Vik Bajajpressroom.versantmedia.com · Jun 11, 2026