Anthropic agreed a roughly $9.1 billion, 20-year data center lease with Riot Platforms for 191 megawatts at Riot's Rockdale, Texas campus, people familiar with the matter told Bloomberg, as carried by The Business Times. Riot disclosed the lease with an unnamed leading frontier AI lab through June 2048, with extensions that could lift value toward $16.1 billion. Delivery is phased from about 96 megawatts in December 2027 to full capacity by June 2028. Why it matters: Claude demand is pulling former Bitcoin miners into long AI power deals. Caveat: Riot and Anthropic have not jointly confirmed the naming.