Amazon Completes AI Supercomputer with Anthropic Partnership

What happened

Amazon Web Services (AWS) has completed Project Rainier, an AI supercomputer developed in partnership with AI startup Anthropic. The supercomputer features nearly half a million custom Trainium2 chips and is now fully operational. Anthropic is using this infrastructure to build and deploy its AI model, Claude.

Why it matters

• Project Rainier significantly increases AWS's AI compute capacity, supporting more advanced AI model training and inference.
• The partnership with Anthropic and the new supercomputer could drive substantial revenue growth for AWS in the coming years.
• AWS’s vertical integration of chip design and software optimization may reduce costs and accelerate AI development.

Key facts

1. 1. Project Rainier includes nearly 500,000 Trainium2 chips and is one of the world’s largest AI compute clusters.
2. 2. Anthropic’s Claude model is expected to run on over 1 million Trainium2 chips by the end of 2025.
3. 3. Amazon has invested at least $8 billion in Anthropic and Project Rainier could represent up to 2.6% of AWS revenue in 2026, rising to over 4% in 2027.