Anthropic and Status of AI Data Centers

This brings its total committed capital to as much as $33 billion. The announcement does not specify how much new equity/percentage this adds or the exact structure, but it will increase Amazon's stake further as part of a deepened cloud/AI hardware partnership (Anthropic committed to over $100B spend on AWS over 10 years).

There is still a race to build AI Data Centers. There are announced deals but then there are delays and cancellations. Funding can be reduced or fall through.

New deal (announced April 20)

$5 billion immediately + up to $20 billion more tied to commercial milestones → total committed up to $33 billion.

Valuation for the new $5 billion: $350 billion pre-money (not including the new funding), per Anthropic. (This is slightly below the $380 billion post-money valuation from Anthropic's February 2026 Series G round.)

Analysts and prior SEC-based calculations put Amazon in the ~15-19% range before this deal (some earlier 2025 filings implied 7.8% at lower valuations, but later rounds and fair-value marks pushed estimates higher). The new $5 billion at $350-380 billion valuation adds roughly 1.3-1.4% of new equity.

Post Amazon deal estimate is Amazon will have 16-20% of Anthropic.

Google (Alphabet) still has about ~14%. This is based on court filings from the Google antitrust case and has been consistent for over a year. Google's total investment is roughly $3 billion.