Anthropic and Amazon Expand Compute Agreement to 5 Gigawatts of New Capacity

Anthropic announced on April 20, 2026, that it is expanding its collaboration with Amazon to support up to 5 gigawatts of new compute. The announcement follows the earlier multi-billion dollar investment relationship between the two companies and reflects the scale of infrastructure Anthropic believes it needs to train and serve frontier models. Five gigawatts is a substantial commitment by any measure, roughly on par with the largest data center buildouts announced by major cloud providers in the past year. This deal is separate from Anthropic's May 6 announcement of a compute arrangement with SpaceX, which also came alongside news of higher usage limits for Claude subscribers. Together, these infrastructure moves indicate Anthropic is securing compute from multiple sources as demand for Claude grows and as training runs for next-generation models presumably increase in cost and scale. No pricing or timeline details for the Amazon expansion were included in the index listing.