The Information reported on May 5 that Anthropic has committed to spend $200 billion with Google Cloud over five years, alongside a separate agreement signed in April with Google and chip partner Broadcom for multiple gigawatts of tensor processing unit capacity coming online from 2027. The commitment accounts for more than 40% of the cloud revenue backlog Google disclosed to investors last week. Alphabet shares rose roughly 2% in extended trading after the report.
The number stands out for its scale and its concentration. A single AI lab is now responsible for nearly half of Google's disclosed cloud backlog — a level of customer concentration unusual for hyperscalers. It also confirms that frontier model training is no longer constrained by capital, but by the physical pace at which TPUs, power, and data center shells can be built.
The deal layers on top of Alphabet's earlier commitment to invest up to $40 billion in Anthropic and the lab's recently reported $900 billion valuation round. Anthropic was excluded from a Pentagon AI deal package on May 1, then reinstated to a federal AI workshop on April 30 — and is now anchoring Google's infrastructure roadmap. The dependency runs both ways.
A note for learners: when one customer becomes 40% of a vendor's pipeline, the relationship stops looking like a customer-vendor and starts looking like a joint venture. Watch how Google reports its cloud growth over the next several quarters — the GAAP definitions of 'revenue' and 'investment' get philosophically interesting when the same company is on both sides of the trade.