Jeff Bezos-Led Prometheus AI Reaches $41B Valuation After $12B Series B Round

Prometheus, the artificial intelligence startup co-led by Amazon founder Jeff Bezos and Stanford professor Vik Bajaj, has raised $12 billion in Series B funding at a $41 billion valuation — one of the largest AI funding rounds on record. Bezos disclosed the raise in an interview with CNBC.

The company launched in November 2025 with $6.2 billion in initial financing. Its stated mission: build an "artificial general engineer" — an AI system designed to accelerate the physical invention process and make it significantly easier for engineers to design products. Prometheus targets AI models for physical tasks including engineering, manufacturing, and drug design, and has recruited heavily from OpenAI, Google DeepMind, and Nvidia.

Despite the name and scale, Prometheus is not building robots. Bezos was explicit on this point. The company is focused on AI-powered engineering tools, not physical hardware. The new capital will go primarily toward securing additional compute resources, which Bezos described as essential given the computational intensity of the work.

Prometheus currently employs about 150 people and operates out of San Francisco, London, and Zurich. Bezos noted the company could eventually use Amazon Web Services as one of its compute providers, while keeping the two companies at arm’s length.

Key Takeaways

• $12B Series B at a $41B valuation — one of the largest single AI funding rounds in history, following a $6.2B launch in November 2025.
• Target: physical AI — engineering tools, manufacturing design, and drug development, not robotics.
• Talent from AI’s top labs — Prometheus has hired from OpenAI, Google DeepMind, and Nvidia.

Bezos described progress to date as "quite remarkable" while acknowledging it remains early to discuss specific accomplishments.

Read the full article on Pulse 2.0